Deleted
Deleted Member
Posts: 0
|
NEBULAS
Jan 10, 2011 18:34:06 GMT -6
Post by Deleted on Jan 10, 2011 18:34:06 GMT -6
|
|
|
NEBULAS
Jan 10, 2011 23:35:16 GMT -6
Post by skywalker on Jan 10, 2011 23:35:16 GMT -6
I love outer space photos. They are some of the most amazingly beautiful things I have ever seen. That one looks almost like it is alive, doesn't it? Like all that stuff on the inside is actually growing there. Can you imagine what it would be like to be there inside of that thing?
|
|
Deleted
Deleted Member
Posts: 0
|
NEBULAS
Jan 11, 2011 4:31:42 GMT -6
Post by Deleted on Jan 11, 2011 4:31:42 GMT -6
I think they're pretty too Jo. The Great Nebula in Orion:
|
|
|
NEBULAS
May 17, 2011 12:04:05 GMT -6
Post by auntym on May 17, 2011 12:04:05 GMT -6
www.stumbleupon.com/su/6RQUEZ/www.dailygalaxy.com/my_weblog/2011/05/the-great-nebula-mother-lode-of-young-stars-in-the-milky-way.htmlMay 17, 2011 Image of the Day" The Great Nebula -- Mother Lode of Young Stars in the Milky WayThe Great Nebula in the constellation of Carina is a massive star-forming complex located about 7.5 thousand light-years away. The main star in the complex, Eta Carinae, shines brightly in the southern sky. Its ensemble of stellar clusters are young and hot, with ages that range from less than about one million years to about six million years. Altogether, the region contains one of the richest concentrations of massive young stars in the galaxy. In addition, the region is rich in non-stellar material including filaments, pillars, cavities, arcs, and other features indicative of a turbulent and complex history. The Nebula is full of mysteries because the numerous complex structures have proven difficult for astronomers to explain. Some scientists think there has been an early epoch of active star formation in the region, and whether or not a supernova may have gone off in the neighborhood is actively debated. The role of intense shocks and colliding winds in generating the hot diffuse gas that is seen is also controversial. TO CONTINUE READING CLICK ON ABOVE LINK
|
|
|
NEBULAS
Jan 18, 2012 20:01:52 GMT -6
Post by swamprat on Jan 18, 2012 20:01:52 GMT -6
Iconic Eagle Nebula Soars in Eye-Popping New ImagesSPACE.com Staff Date: 18 January 2012 The Eagle nebula is a distant star-forming nest of gas and dust about 6,500 light-years from Earth in the constellation Serpens. The nebula gained notoriety in 1995, when NASA's Hubble Space Telescope revealed vast pillar-like structures — the so-called "Pillars of Creation" — in a picture that remains one of the most iconic space photos ever recorded. The new Eagle nebula photo, released today (Jan. 17), is actually a combination of views from the European Space Agency's infrared Herschel space observatory and the XMM-Newton X-ray telescope. The combined observations of the two spacecraft, as well as infrared views from telescopes on Earth, reveal the Eagle nebula as a colorful swirl of gas and dust with a dense core of stars, which appear in shades of red, green, blue, yellow and orange. The stars belong to the star cluster NGC6611. For astronomers, the new views of the Eagle nebula are a must-see in order to observe small clumps of material known as "evaporating gaseous globules," or EGGs, in the nebula's pillars. Astronomers have long-suspected that stars were being born inside some of the Eagle nebula EGGs, but the Hubble Space Telescope was unable to peer inside them using its visible light camera, ESA officials said. "In visible wavelengths, the nebula shines mainly due to reflected starlight and hot gas filling the giant cavity, covering the surfaces of the pillars and other dusty structures," ESA officials explained in a statement. "At near-infrared wavelengths, the dust becomes almost transparent and the pillars practically vanish. In far-infrared, Herschel detects this cold dust and the pillars reappear, this time glowing in their own light." www.space.com/14272-eagle-nebula-eye-popping-space-photos.html
|
|
Deleted
Deleted Member
Posts: 0
|
NEBULAS
Jan 18, 2012 22:10:03 GMT -6
Post by Deleted on Jan 18, 2012 22:10:03 GMT -6
Wow Swampy... just... wow...
|
|
|
NEBULAS
Jan 20, 2012 14:31:18 GMT -6
Post by skywalker on Jan 20, 2012 14:31:18 GMT -6
That is one of the most beautiful things I have ever seen. It's like looking at a photo of God creating the universe. Let there be light...
|
|
|
NEBULAS
Oct 1, 2012 10:51:15 GMT -6
Post by auntym on Oct 1, 2012 10:51:15 GMT -6
|
|
|
NEBULAS
Apr 21, 2013 10:39:07 GMT -6
Post by auntym on Apr 21, 2013 10:39:07 GMT -6
www.stumbleupon.com/su/AKtl1Z/www.dailygalaxy.com/my_weblog/2013/04/in-this-new-hubble-image-the-backlit-wisps-along-the-horseheads-upper-ridge-are-being-illuminated-by-sigma-orionis-a-young.htmlApril 19, 2013
Stunning New Hubble Image of the Horsehead Nebula[/color] In this new Hubble image, the backlit wisps along the Horsehead's upper ridge are being illuminated by Sigma Orionis, a young five-star system just out of view. Along the nebula's top ridge, two fledgling stars peek out from their now-exposed nurseries. Scientists know a harsh ultraviolet glare from one of these bright stars is slowly evaporating the nebula. Gas clouds surrounding the Horsehead already have dissipated, but the tip of the jutting pillar contains a slightly higher density of hydrogen and helium, laced with dust. This casts a shadow that protects material behind it from being stripped away by intense stellar radiation evaporating the hydrogen cloud, and a pillar structure forms. Astronomers have used NASA's Hubble Space Telescope to photograph the iconic Horsehead Nebula in this new, infrared light to mark the 23rd anniversary of the famous observatory's launch aboard the space shuttle Discovery on April 24, 1990. Looking like an apparition rising from whitecaps of interstellar foam, the iconic Horsehead Nebula has graced astronomy books ever since its discovery more than a century ago. The nebula is a favorite target for amateur and professional astronomers. It is shadowy in optical light. It appears transparent and ethereal when seen at infrared wavelengths. The rich tapestry of the Horsehead Nebula pops out against the backdrop of Milky Way stars and distant galaxies that easily are visible in infrared light. Hubble has been producing ground-breaking science for two decades. During that time, it has benefited from a slew of upgrades from space shuttle missions, including the 2009 addition of a new imaging workhorse, the high-resolution Wide Field Camera 3 that took the new portrait of the Horsehead. The nebula is part of the Orion Molecular Cloud, located about 1,500 light-years away in the constellation Orion. The cloud also contains other well-known objects such as the Great Orion Nebula (M42), the Flame Nebula, and Barnard's Loop. It is one of the nearest and most easily photographed regions in which massive stars are being formed. MORE: www.stumbleupon.com/su/AKtl1Z/www.dailygalaxy.com/my_weblog/2013/04/in-this-new-hubble-image-the-backlit-wisps-along-the-horseheads-upper-ridge-are-being-illuminated-by-sigma-orionis-a-young.html
|
|
Deleted
Deleted Member
Posts: 0
|
NEBULAS
Apr 21, 2013 19:08:32 GMT -6
Post by Deleted on Apr 21, 2013 19:08:32 GMT -6
astonishingly beautiful
|
|
Deleted
Deleted Member
Posts: 0
|
NEBULAS
Apr 21, 2013 19:26:47 GMT -6
Post by Deleted on Apr 21, 2013 19:26:47 GMT -6
Nice ! I have seen many photos taken of this nebula throughout the years and this is the best detail yet. Notice the eye on the horse, I've never seen that. This is amazing ! It usually isn't visible in a telescope (I've tried , so have many others ) and normally requires long exposures to resolve the image. Hubble continues to impress.
|
|
|
NEBULAS
Apr 21, 2013 21:33:14 GMT -6
Post by skywalker on Apr 21, 2013 21:33:14 GMT -6
It looks more like a dinosaur to me...or maybe a dragon. I ain't seeing no horse.
|
|
|
NEBULAS
Oct 30, 2013 10:06:56 GMT -6
Post by auntym on Oct 30, 2013 10:06:56 GMT -6
www.space.com/23367-spooky-nebula-coldest-object-universe-photo.html?cmpid=514648Spooky Nebula is Coldest Known Object in Universe (Photo)by Elizabeth Howell, SPACE.com Contributor October 29, 2013 The ghostly Boomerang Nebula, called the 'coldest place in the universe,' reveals its true shape in this image from the giant ALMA radio telescope. The background blue structure, as seen in visible light with the Hubble Space Telescope, shows a classic double-lobe shape with a very narrow central region. Image released Oct. 24, 2013. Credit: Bill Saxton; NRAO/AUI/NSF; NASA/Hubble; Raghvendra Sahai A ghostly nebula shining about 5,000 light-years from Earth is also the coldest known object in the universe. The dead star creating the Boomerang Nebula is sloughing off gas from its shell, which is producing the strangely shaped cosmic object, astronomers have discovered. The gas is cooling as it flows away from the white dwarf star in a process similar to how refrigerators stay cold by using expanding gas. Researchers took the nebula's temperature with the Atacama Large Millimeter/submillimeter Array (ALMA) telescope www.space.com/22428-amazing-star-birth-photos-alma-telescope.html and revealed it is a frigid minus 458 degrees Fahrenheit (minus 272 degrees Celsius). This is even colder than the cooling leftovers of the Big Bang that pervade the universe, a phenomenon called the cosmic microwave background. [Haunting Photos: The Spookiest Nebulas in Space] www.space.com/13264-spooky-nebulas-space-halloween-photos.html "This ultra-cold object is extremely intriguing, and we’re learning much more about its true nature with ALMA," Raghvendra Sahai, the NASA Jet Propulsion Laboratory principal scientist who led the research, said in a statement. "What seemed like a double lobe, or 'boomerang' shape, from Earth-based optical telescopes, is actually a much broader structure that is expanding rapidly into space." The Boomerang Nebula is considered a young planetary nebula, or an object that is formed when a dying star — one that was similar to the sun — sheds its outer layers and leaves a cloud of gas behind. This kind of star burns like the sun for billions of years before growing into a red giant, running out of gas and then fading into a white dwarf. In later stages of planetary nebula evolution, the white dwarf in the middle sends out ultraviolet radiation that makes the gas glow, producing bright colors within the gas. The Boomerang Nebula, however, is not quite at that stage, researchers said. It's visible right now because the star's light is being reflected off the dust grains. CONTINUE READING: www.space.com/23367-spooky-nebula-coldest-object-universe-photo.html?cmpid=514648
|
|
|
NEBULAS
Jan 11, 2014 14:06:25 GMT -6
Post by auntym on Jan 11, 2014 14:06:25 GMT -6
news.sky.com/story/1193065/new-hand-of-god-picture-taken-by-nasa New 'Hand Of God' Picture Taken By Nasaasa has captured a new image of a hand-shaped formation around a star that has been dubbed the "hand of God". Friday 10 January 2014 NuStar's new image shows the hand in more vivid colour Scientists said it was a nebula - a cloud of gas - around a neutron star called PSR B1509-58, or B1509 for short. Neutron stars are created when massive stars run out of fuel and collapse. The star has collapsed so much, Nasa says it is only 12 miles across and incredibly dense. When it collapsed, it also caused an explosion which cast gas and material out into space. It revolves at seven times a second and in doing so it throws out huge amounts of sub-atomic particles in streams. The original image of the 'Hand of God' taken by the Chandra telescope It is the interaction between the particles and the gas that, when photographed with a special camera, create the amazing image. A previous image of the "hand" was captured in 2009 by Nasa's Chandra X-ray observatory - a telescope contained in a satellite which is able to see X-rays 100 times fainter than any detector on Earth. The new image was taken by the agency's "black-hole hunting" Nuclear Spectroscopic Telescope Array (NuStar) which is able to see even the highest energy X-rays. Nasa says B1509 is 17,000 light years away. CONTINUE READING: news.sky.com/story/1193065/new-hand-of-god-picture-taken-by-nasa
|
|
|
NEBULAS
Feb 22, 2014 15:31:10 GMT -6
Post by auntym on Feb 22, 2014 15:31:10 GMT -6
www.space.com/12605-50-deep-space-nebula-photos.html?cmpid=514648_20140221_18968574 50 Fabulous Deep-Space Nebula PhotosSPACE.com Staff | October 31, 2011 The Butterfly Nebula
The Butterfly Nebula exhibits the classic hourglass shape of many planetary nebulas… The Cat's Eye NebulaThe Cat's Eye Nebula features concentric shells or bubbles of gas and dust. Kronberger 61 NebulaKronberger 61 NebulaGemini Observatory Image of Kronberger 61 Nebula [Pin It] Credit: Gemini Observatory/AURA This Gemini Observatory image of Kronberger 61 shows the ionized shell of expelled gas resembling a soccer ball. The light of the nebula here is primarily due to emission from twice-ionized oxygen, and its central star can be seen as the slightly bluer star very close to the center of the nebula. SEE ALL THE PHOTOS: www.space.com/12605-50-deep-space-nebula-photos.html?cmpid=514648_20140221_18968574
|
|
|
NEBULAS
Apr 16, 2014 14:02:43 GMT -6
Post by auntym on Apr 16, 2014 14:02:43 GMT -6
|
|
|
Post by auntym on Jan 14, 2015 13:29:47 GMT -6
apod.nasa.gov/apod/ap150113.html Astronomy Picture of the Day The Soap Bubble NebulaExplanation: Adrift in the rich star fields of the constellation Cygnus, this lovely, symmetric nebula was only recognized a few years ago and does not yet appear in some astronomical catalogs. In fact, amateur astronomer Dave Jurasevich identified it as a nebula on 2008 July 6 in his images of the complex Cygnus region that included the Crescent Nebula (NGC 6888). He subsequently notified the International Astronomical Union. Only eleven days later the same object was independently identified by Mel Helm at Sierra Remote Observatories, imaged by Keith Quattrocchi and Helm, and also submitted to the IAU as a potentially unknown nebula. The nebula, appearing on the left of the featured image, is now known as the Soap Bubble Nebula. What is the newly recognized nebula? Most probably it is a planetary nebula, a final phase in the life of a sun-like star. 2015 January 13 apod.nasa.gov/apod/ap150113.html
|
|
|
Post by auntym on Aug 27, 2015 12:50:11 GMT -6
www.dailygalaxy.com/my_weblog/2015/08/the-binary-core-of-the-twin-jet-nebula.htmlAugust 26, 2015 Image of the Day --The Spectacular Core of the Twin Jet NebulaThe shimmering colors visible in this NASA/ESA Hubble Space Telescope image show off the remarkable complexity of the Twin Jet Nebula. The new image highlights the nebula's shells and its knots of expanding gas in striking detail. Two iridescent lobes of material stretch outwards from a central star system. Within these lobes two huge jets of gas are streaming from the star system at speeds in excess of one million kilometers per hour. The cosmic butterfly pictured in this NASA/ESA Hubble Space Telescope image goes by many names. It is called the Twin Jet Nebula as well as answering to the slightly less poetic name of PN M2-9. The M in this name refers to Rudolph Minkowski, a German-American astronomer who discovered the nebula in 1947. The PN, meanwhile, refers to the fact that M2-9 is a planetary nebula. The glowing and expanding shells of gas clearly visible in this image represent the final stages of life for an old star of low to intermediate mass. The star has not only ejected its outer layers, but the exposed remnant core is now illuminating these layers -- resulting in a spectacular light show like the one seen here. However, the Twin Jet Nebula is not just any planetary nebula, it is a bipolar nebula. Ordinary planetary nebulae have one star at their center, bipolar nebulae have two, in a binary star system. Astronomers have found that the two stars in this pair each have around the same mass as the Sun, ranging from 0.6 to 1.0 solar masses for the smaller star, and from 1.0 to 1.4 solar masses for its larger companion. The larger star is approaching the end of its days and has already ejected its outer layers of gas into space, whereas its partner is further evolved, and is a small white dwarf The characteristic shape of the wings of the Twin Jet Nebula is most likely caused by the motion of the two central stars around each other. It is believed that a white dwarf orbits its partner star and thus the ejected gas from the dying star is pulled into two lobes rather than expanding as a uniform sphere. However, astronomers are still debating whether all bipolar nebulae are created by binary stars. Meanwhile the nebula's wings are still growing and, by measuring their expansion, astronomers have calculated that the nebula was created only 1200 years ago. Within the wings, starting from the star system and extending horizontally outwards like veins are two faint blue patches. Although these may seem subtle in comparison to the nebula's rainbow colors, these are actually violent twin jets streaming out into space, at speeds in excess of one million kilometers per hour. This is a phenomenon that is another consequence of the binary system at the heart of the nebula. These jets slowly change their orientation, precessing across the lobes as they are pulled by the wayward gravity of the binary system. The two stars at the heart of the nebula circle one another roughly every 100 years. This rotation not only creates the wings of the butterfly and the two jets, it also allows the white dwarf to strip gas from its larger companion, which then forms a large disc of material around the stars, extending out as far as 15 times the orbit of Pluto! Even though this disc is of incredible size, it is much too small to be seen on the image taken by Hubble. An earlier image of the Twin Jet Nebula using data gathered by Hubble's Wide Field Planetary Camera 2 was released in 1997. This newer version incorporates more recent observations from the telescope's Space Telescope Imaging Spectrograph (STIS). The Daily Galaxy via ESA/Hubble Information Center www.dailygalaxy.com/my_weblog/2015/08/the-binary-core-of-the-twin-jet-nebula.html
|
|
|
NEBULAS
Sept 15, 2015 12:59:33 GMT -6
Post by auntym on Sept 15, 2015 12:59:33 GMT -6
www.flickr.com/photos/112501172@N04/21401497716/in/pool-universetoday/Transient Astronomer The Running Man Nebula (NGC 1973/5/7) This is a reprocessed image of the Running Man Nebula (left) and De Mairan's Nebula (right) that was taken last year on 10/4/2014. These two objects are found right next to the Great Orion Nebula in the sword of the constellation Orion. With the Fall fast approaching Orion is returning to the night sky, a real treat to look at/image in the Fall/Winter months. This image was a part of a mosaic attempt of this area which can be seen here: flic.kr/p/pf597z I really look forward to spending more time on this area this season. With this image there was quite a bit of noise to deal with and it was difficult to pull out the faint details since this image set is kind of lean, only 9x120" @800 ISO lights. I really want to spend more than a couple nights on these targets and the Great Orion Nebula, then move on to all of the other awesome objects/areas found in the constellation Orion this season. Here is a wonderful article PACKED with info on what can be found in the constellation Orion: www.universetoday.com/22314/orion/ www.flickr.com/photos/112501172@N04/21401497716/in/pool-universetoday/
|
|
|
NEBULAS
Sept 22, 2015 13:54:46 GMT -6
Post by auntym on Sept 22, 2015 13:54:46 GMT -6
www.space.com/24225-hand-of-god-photo-nasa-telescope.html?cmpid=514648_20150922_52800756&adbid=646292872753319937&adbpl=tw&adbpr=15431856 'Hand of God' Spotted by NASA Space Telescope (Photo)By Tanya Lewis, Staff Writer January 09, 2014 The hand might look like an X-ray from the doctor's office, but it is actually a cloud of material ejected from a star that exploded. NASA's NuSTAR spacecraft has imaged the structure in high-energy X-rays for the first time, shown in blue. Lower-energy X-ray light previously detected by NASA's Chandra X-ray Observatory is shown in green and red. Credit: NASA/JPL-Caltech/McGill Religion and astronomy may not overlap often, but a new NASA X-ray image captures a celestial object that resembles the "Hand of God." The cosmic "hand of God" photo was produced when a star exploded and ejected an enormous cloud of material, which NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, glimpsed in high-energy X-rays, shown in blue in the photo. NASA's Chandra X-ray Observatory had imaged the green and red parts previously, using lower-energy X-rays. "NuSTAR's unique viewpoint, in seeing the highest-energy X-rays, is showing us well-studied objects and regions in a whole new light," NuSTAR telescope principal investigator Fiona Harrison, of the California Institute of Technology in Pasadena, said in a statement. The new image depicts a pulsar wind nebula, produced by the dense remnant of a star that exploded in a supernova. What's left behind is a pulsar, called PSR B1509-58 (B1509 for short), which spins around 7 times per second blowing a wind of particles into material ejected during the star's death throes. As these particles interact with nearby magnetic fields, they produce an X-ray glow in the shape of a hand. (The pulsar is located near the bright white spot in the image but cannot be seen itself, NASA officials said.) Scientists aren't sure whether the ejected material actually assumes the shape of a hand, or whether its interaction with the pulsar's particles is just making it appear that way. "We don't know if the hand shape is an optical illusion," Hongjun An, of McGill University in Montreal, said in a statement. "With NuSTAR, the hand looks more like a fist, which is giving us some clues." The red cloud appearing at the fingertips is a separate structure called RCW 89. The pulsar's wind may be heating the cloud to produce the low-energy X-ray glow, astronomers believe. The X-ray energies seen by NuSTAR range from 7 to 25 kiloelectron volts, or keV, whereas the energies seen by Chandra range from 0.5 to 2 keV. The Hand of God is an example of pareidolia, the psychological phenomenon of perceiving familiar shapes in random or vague images. Other common forms of pareidolia include seeing animals or faces in clouds, or the man in the moon. Despite its supernatural appearance, the Hand of God was produced by natural astrophysical phenomena. www.space.com/24225-hand-of-god-photo-nasa-telescope.html?cmpid=514648_20150922_52800756&adbid=646292872753319937&adbpl=tw&adbpr=15431856
|
|
|
NEBULAS
Feb 13, 2016 14:24:18 GMT -6
Post by auntym on Feb 13, 2016 14:24:18 GMT -6
www.nasa.gov/image-feature/goddard/2016/hubble-watches-the-icy-blue-wings-of-hen-2-437Feb. 12, 2016
Hubble Watches the Icy Blue Wings of Hen 2-437In this cosmic snapshot, the spectacularly symmetrical wings of Hen 2-437 show up in a magnificent icy blue hue. Hen 2-437 is a planetary nebula, one of around 3,000 such objects known to reside within the Milky Way. Located within the faint northern constellation of Vulpecula (The Fox), Hen 2-437 was first identified in 1946 by Rudolph Minkowski, who later also discovered the famous and equally beautiful M2-9 (otherwise known as the Twin Jet Nebula). Hen 2-437 was added to a catalog of planetary nebula over two decades later by astronomer and NASA astronaut Karl Gordon Henize. Planetary nebulae such as Hen 2-437 form when an aging low-mass star — such as the sun — reaches the final stages of life. The star swells to become a red giant, before casting off its gaseous outer layers into space. The star itself then slowly shrinks to form a white dwarf, while the expelled gas is slowly compressed and pushed outwards by stellar winds. As shown by its remarkably beautiful appearance, Hen 2-437 is a bipolar nebula — the material ejected by the dying star has streamed out into space to create the two icy blue lobes pictured here. Image credit: ESA (European Space Agency)/Hubble & NASA, Acknowledgement: Judy Schmidt Text credit: ESA Last Updated: Feb. 12, 2016 Editor: Rob Garner
|
|
|
NEBULAS
Apr 10, 2016 12:36:36 GMT -6
Post by auntym on Apr 10, 2016 12:36:36 GMT -6
www.nasa.gov/image-feature/goddard/2016/hubble-frames-a-unique-red-rectangleApril 8, 2016 Hubble Frames a Unique Red Rectangle The star HD 44179 is surrounded by an extraordinary structure known as the Red Rectangle. It acquired its moniker because of its shape and its apparent color when seen in early images from Earth. This strikingly detailed Hubble image reveals how, when seen from space, the nebula, rather than being rectangular, is shaped like an X with additional complex structures of spaced lines of glowing gas, a little like the rungs of a ladder. The star at the center is similar to the sun, but at the end of its lifetime, pumping out gas and other material to make the nebula, and giving it the distinctive shape. It also appears that the star is a close binary that is surrounded by a dense area of dust — both of which may help to explain the very curious shape. The Red Rectangle is an unusual example of what is known as a proto-planetary nebula. These are old stars, on their way to becoming planetary nebulae. Once the expulsion of mass is complete a very hot white dwarf star will remain and its brilliant ultraviolet radiation will cause the surrounding gas to glow. The Red Rectangle is found about 2,300 light-years away in the constellation Monoceros (the Unicorn). The High Resolution Channel of the NASA/ESA Hubble Space Telescope’s Advanced Camera for Surveys captured this view of HD 44179 and the surrounding Red Rectangle nebula — the sharpest view so far. Red light from glowing Hydrogen was captured through the F658N filter and colored red. Orange-red light over a wider range of wavelengths through a F625W filter was colored blue. The field of view is about 25 by 20 arcseconds. Text credit: European Space Agency Image credit: ESA/Hubble and NASA www.nasa.gov/image-feature/goddard/2016/hubble-frames-a-unique-red-rectangle
|
|
|
NEBULAS
Apr 22, 2016 12:38:42 GMT -6
Post by auntym on Apr 22, 2016 12:38:42 GMT -6
www.spacetelescope.org/news/heic1608/?utm_medium=SocialSignIn&utm_source=Twitter Hubble captures birthday bubblePublished on Apr 21, 2016 A zoom into the Hubble Space Telescope photograph of an enormous, balloon-like bubble being blown into space by a super-hot, massive star. Astronomers trained the iconic telescope on this colorful feature, called the Bubble Nebula, or NGC 7635. Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA), F. Summers, G. Bacon, Z. Levay, and L. Frattare (Viz 3D Team, STScI) heic1608 — Photo Release Hubble captures birthday bubble
21 April 2016This new NASA/ESA Hubble Space Telescope image, released to celebrate Hubble’s 26th year in orbit, captures in stunning clarity what looks like a gigantic cosmic soap bubble. The object, known as the Bubble Nebula, is in fact a cloud of gas and dust illuminated by the brilliant star within it. The vivid new portrait of this dramatic scene wins the Bubble Nebula a place in the exclusive Hubble hall of fame, following an impressive lineage of Hubble anniversary images. Twenty six years ago, on 24 April 1990, the NASA/ESA Hubble Space Telescope was launched into orbit aboard the space shuttle Discovery as the first space telescope of its kind. Every year, to commemorate this momentous day in space history, Hubble spends a modest portion of its observing time capturing a spectacular view of a specially chosen astronomical object. This year’s anniversary object is the Bubble Nebula, also known as NGC 7635, which lies 8 000 light-years away in the constellation Cassiopeia. This object was first discovered by William Herschel in 1787 and this is not the first time it has caught Hubble’s eye. However, due to its very large size on the sky, previous Hubble images have only shown small sections of the nebula, providing a much less spectacular overall effect. Now, a mosaic of four images from Hubble’s Wide Field Camera 3 (WFC3) allows us to see the whole object in one picture for the first time. This complete view of the Bubble Nebula allows us to fully appreciate the almost perfectly symmetrical shell which gives the nebula its name. This shell is the result of a powerful flow of gas — known as a stellar wind — from the bright star visible just to the left of centre in this image. The star, SAO 20575, is between ten and twenty times the mass of the Sun and the pressure created by its stellar wind forces the surrounding interstellar material outwards into this bubble-like form. The giant molecular cloud that surrounds the star — glowing in the star’s intense ultraviolet radiation — tries to stop the expansion of the bubble. However, although the sphere already measures around ten light-years in diameter, it is still growing, owing to the constant pressure of the stellar wind — currently at more than 100 000 kilometres per hour! Aside from the symmetry of the bubble itself, one of the more striking features is that the star is not located at the centre. Astronomers are still discussing why this is the case and how the perfectly round bubble is created nonetheless. The star causing the spectacular colourful bubble is also notable for something less obvious. It is surrounded by a complex system of cometary knots, which can be seen most clearly in this image just to the right of the star. The individual knots, which are generally larger in size than the Solar System and have masses comparable to Earth’s, consist of crescent shaped globules of dust with large trailing tails illuminated and ionised by the star. Observations of these knots, and of the nebula as a whole, help astronomers to better understand the geometry and dynamics of these very complicated systems. As always, and twenty six years on, Hubble gives us much more than a pretty picture. More information The Hubble Space Telescope is a project of international cooperation between ESA and NASA. Image credit: NASA, ESA, Hubble Heritage Team www.spacetelescope.org/news/heic1608/?utm_medium=SocialSignIn&utm_source=Twitter
|
|
|
NEBULAS
Apr 27, 2016 17:15:47 GMT -6
Post by auntym on Apr 27, 2016 17:15:47 GMT -6
www.space.com/32689-massive-wolf-rayet-stars-not-fully-understood.html?utm_content=buffer21260&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer%26cmpid%3D514648#sthash.sBwCxMrd.dpufhttp://buff.ly/1NOYp6O Wolf-Rayet Stars: Sounds Like Sci-Fi, But Full of Sci-FactBy Paul Sutter, Astrophysicist April 25, 2016 A giant bubble blown by the massive Wolf-Rayet star HD 50896, the pink star in the centre of the image. Credit: ESA, J. Toala & M. Guerrero (IAA-CSIC), Y.-H. Chu & R. Gruendl (UIUC), S. Arthur (CRyA–UNAM), R. Smith (NOAO/CTIO), S. Snowden (NASA/GSFC) and G. Ramos-Larios (IAM) Paul Sutter is an astrophysicist at The Ohio State University and the chief scientist at COSI Science Center. Sutter is also host of the podcasts Ask a Spaceman and RealSpace, and the YouTube series Space In Your Face. Sometimes I get a little jealous of pre-20th century astronomers. Nowadays, if you discover something new you get to name it. Back then, if you discovered something new, it got named after you. Such was the case when Charles Wolf and Georges Rayet happened upon a strange star one night at the Paris Observatory in 1867. I don't know what they said to each other after the discovery — even if I could overhear them, my French is a little too rusty — but it probably wasn't, "Sweet! Our names get to be featured in a skipped-over chapter of every astronomy textbook of the future!" WATCH VIDEO & CONTINUE READING: www.space.com/32689-massive-wolf-rayet-stars-not-fully-understood.html?utm_content=buffer21260&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer%26cmpid%3D514648#sthash.sBwCxMrd.dpufhttp://buff.ly/1NOYp6O
|
|
|
NEBULAS
Jan 4, 2017 11:25:57 GMT -6
Post by swamprat on Jan 4, 2017 11:25:57 GMT -6
Spectacular Clouds of Orion Hide Massive Star Nursery (Photos, Video)By Hanneke Weitering, Staff Writer-Producer January 4, 2017
Astronomers just uncovered the most detailed view yet of a massive stellar nursery, and the photos are absolutely stunning.
Watch the video to see pictures of the Orion A molecular cloud, a dense region filled with cosmic gas and dust that tend to block the view of all the blooming baby stars that lie within. The cloud is located about 8 degrees south of Orion's sword in the constellation Orion the Hunter.
Using the Visible and Infrared Survey Telescope for Astronomy (VISTA) at the European Southern Observatory's (ESO) Cerro Paranal facilities in Chile, astronomers were able to see through the haze and identify nearly 800,000 celestial objects, including stars and protostars, the dusty disks of soon-to-be blazing balls of nuclear fusion.
This image from the Visible and Infrared Survey Telescope for Astronomy (VISTA) at ESO's Paranal Observatory in Chile is part of the largest infrared high-resolution mosaic of Orion ever created. It includes the Orion A molecular cloud, a massive stellar nursery that lies about 1,350 light-years from Earth. Credit: ESO/VISION survey
These new images are part of the Vienna Survey In Orion (VISION) sky survey, a project based at the University of Vienna in Austria. VISION seeks to map all of the star-forming clouds within 1,600 light-years of Earth that are visible from the Southern Hemisphere. You can explore the image in an interactive app on the VISION website.
By detecting light in infrared and near-infrared wavelengths, VISTA and other infrared telescopes can "see" things in space that are otherwise invisible to the human eye and other optical telescopes. Not all of the objects in this survey were new discoveries, but the researchers did identify five new protostar candidates — freshly forming stars-to-be — in the stellar nursery. Several potential new galaxy clusters were also spotted in the region.
This collection of highlights is taken from a new infrared image of the Orion A molecular cloud from VISTA. Credit: ESO/VISION survey
"This represents better depth and coverage than any other survey of this region to date," ESO officials said in a statement. Previous near-infrared surveys of Orion A "are limited in their depth and sensitivity, and/or only cover a fraction of the entire molecular cloud," the study's authors wrote in their research paper, which was published today (Jan. 4) in the journal Astronomy & Astrophysics.
Watch video: www.space.com/35206-orion-clouds-star-nursery-amazing-views.html
|
|
|
NEBULAS
Feb 2, 2018 16:10:34 GMT -6
Post by auntym on Feb 2, 2018 16:10:34 GMT -6
Zoom through the Orion Nebula in 3-D, courtesy of NASA.
Flight Through the Orion Nebula in Visible and Infrared Light [Ultra HD]
Hubble Space Telescope Published on Jan 11, 2018
Flight Through the Orion Nebula in Visible and Infrared Light [Ultra HD]
This visualization explores the Orion Nebula using both visible and infrared light. The sequence begins with a wide-field view of the sky showing the plane of our Milky Way Galaxy, then zooms down to the scale of the Orion Nebula. The visible light observation (from the Hubble Space Telescope) and the infrared light observation (from the Spitzer Space Telescope) are compared first in two-dimensional images, and then in three-dimensional models.
As the camera flies into the star-forming region, the sequence cross-fades back and forth between the visible and infrared views. The glowing gaseous landscape has been illuminated and carved by the high energy radiation and strong stellar winds from the massive hot stars in the central cluster. The infrared observations generally show cooler temperature gas at a deeper layer of the nebula that extends well beyond the visible image. In addition, the infrared showcases many faint stars that shine primarily at longer wavelengths. The higher resolution visible observations show finer details including the wispy bow shocks and tadpole-shaped proplyds. In this manner, the movie illustrates the contrasting features uncovered by multi-wavelength astronomy.
Credit: NASA, ESA, and F. Summers, G. Bacon, Z. Levay, J. DePasquale, L. Hustak, L. Frattare, M. Robberto (STScI), R. Hurt (Caltech/IPAC), M. Kornmesser (ESA), A. Fujii
|
|
|
NEBULAS
Feb 15, 2018 21:05:44 GMT -6
Post by auntym on Feb 15, 2018 21:05:44 GMT -6
www.stumbleupon.com/su/8Rro7w Photographer Catches 'Boogie Man Nebula' Lurking Behind Light Pollution By Christine Lunsford, Space.com Contributor / February 12, 2018 The Boogie Man Nebula looms in deep space. Credit: Jeffrey O. Johnson/jeffjastro.comThe "Boogie Man Nebula" haunts the cosmos in this deep-space image by astrophotographer Jeff Johnson. Also known as Lynds Dark Nebula (LDN) 1622, this dark cloud of interstellar dust and gas lies about 500 light-years away in the constellation of Orion. Johnson captured this splendid image of the Boogie Man Nebula from his backyard in Las Cruces, New Mexico. Creating this image took three attempts, as clouds and light pollution kept ruining his data, Johnson told Space.com. But he managed to make the most out of the data he had by combining the usable parts into one stellar portrait of this celestial Boogie Man. [Haunting Photos: The Spookiest Nebulas in Space] Over this trio of attempts, Johnson collected a total of 5.3 hours of exposure. The resulting image combines H-alpha data (a wavelength of light emitted by glowing hydrogen) collected during his most recent imaging session on Nov. 24, and RGB (color) data from his first shot of the nebula taken on Feb. 11, 2016, Johnson said. About a year after he took that first image, Johnson revisited the Boogie Man Nebula with a new telescope. But the image came out blurry, and too much light pollution made the color data unusable. When he tried again last November, the light pollution ruined his color data again, but the image came out sharper. "As luck would have it … clouds rolled in through part of the data session," Johnson said. "Each attempt … takes me one hour of setup time, since I use a portable setup that I take down the next morning after every session," Johnson said. His setup includes a Takahashi TOA-130F refractor telescope and a QSI 540wsg cooled CCD camera equipped with a H-alpha filter and LRGB filter. For his first image in 2016, Johnson used a Takahashi FS-60C to capture a wider shot of the nebula. www.stumbleupon.com/su/8Rro7w
|
|
|
Post by auntym on Feb 20, 2018 19:08:39 GMT -6
THE ANT NEBULAThe so-called "ant nebula" (Menzel 3, or Mz 3) resembles the head and thorax of a garden-variety ant.
|
|
|
Post by auntym on Feb 21, 2018 13:17:11 GMT -6
i don't mind at all cliff ... you adding new info to my posts... what you added today was very interesting... ... good find...
|
|
|
NEBULAS
Feb 26, 2018 16:09:51 GMT -6
Post by auntym on Feb 26, 2018 16:09:51 GMT -6
apod.nasa.gov/apod/ap160226.html Astronomy Picture of the DayDiscover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.2016 February 26 The Tarantula Nebula The Tarantula NebulaImage Credit & Copyright: Processing - Robert Gendler, Roberto Colombari Data - Hubble Tarantula Treasury, European Southern Observatory Explanation: The Tarantula Nebula is more than a thousand light-years in diameter, a giant star forming region within nearby satellite galaxy the Large Magellanic Cloud, about 180 thousand light-years away. The largest, most violent star forming region known in the whole Local Group of galaxies, the cosmic arachnid sprawls across this spectacular composite view constructed with space- and ground-based image data. Within the Tarantula (NGC 2070), intense radiation, stellar winds and supernova shocks from the central young cluster of massive stars, cataloged as R136, energize the nebular glow and shape the spidery filaments. Around the Tarantula are other star forming regions with young star clusters, filaments, and blown-out bubble-shaped clouds In fact, the frame includes the site of the closest supernova in modern times, SN 1987A, at the lower right. The rich field of view spans about 1 degree or 2 full moons, in the southern constellation Dorado. But were the Tarantula Nebula closer, say 1,500 light-years distant like the local star forming Orion Nebula, it would take up half the sky. apod.nasa.gov/apod/ap160226.html
|
|