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Keyword: andromeda

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  • Astronomy Picture of the Day -- NGC 206 and the Star Clouds of Andromeda

    09/27/2014 9:40:49 PM PDT · by SunkenCiv · 5 replies
    NASA ^ | September 25, 2014 | (see photo credit)
    Explanation: The large stellar association cataloged as NGC 206 is nestled within the dusty arms of the neighboring Andromeda galaxy. Also known as M31, the spiral galaxy is a mere 2.5 million light-years away. NGC 206 is near top center in this gorgeous close-up of the southwestern extent of Andromeda's disk, a remarkable composite of data from space and ground-based observatories. The bright, blue stars of NGC 206 indicate its youth. In fact, its youngest massive stars are less than 10 million years old. Much larger than the open or galactic clusters of young stars in the disk of our...
  • Astronomy Picture of the Day -- M31: The Andromeda Galaxy

    07/31/2014 10:49:52 PM PDT · by SunkenCiv · 7 replies
    NASA ^ | July 30, 2014 | (see photo credit)
    Explanation: Andromeda is the nearest major galaxy to our own Milky Way Galaxy. Our Galaxy is thought to look much like Andromeda. Together these two galaxies dominate the Local Group of galaxies. The diffuse light from Andromeda is caused by the hundreds of billions of stars that compose it. The several distinct stars that surround Andromeda's image are actually stars in our Galaxy that are well in front of the background object. Andromeda is frequently referred to as M31 since it is the 31st object on Messier's list of diffuse sky objects. M31 is so distant it takes about two...
  • Astronomy Picture of the Day -- The Gegenschein Over Chile

    01/14/2014 4:49:49 PM PST · by SunkenCiv · 9 replies
    NASA ^ | January 14, 2014 | (see photo credit)
    Explanation: Is the night sky darkest in the direction opposite the Sun? No. In fact, a rarely discernable faint glow known as the gegenschein (German for "counter glow") can be seen 180 degrees around from the Sun in an extremely dark sky. The gegenschein is sunlight back-scattered off small interplanetary dust particles. These dust particles are millimeter sized splinters from asteroids and orbit in the ecliptic plane of the planets. Pictured above from last year is one of the more spectacular pictures of the gegenschein yet taken. Here a deep exposure of an extremely dark sky over Las Campanas Observatory...
  • Astronomy Picture of the Day -- NGC 891 Edge-on

    10/10/2013 9:29:30 PM PDT · by SunkenCiv · 12 replies
    NASA ^ | October 11, 2013 | (see photo credit)
    Explanation: This sharp cosmic portrait features NGC 891. The spiral galaxy spans about 100 thousand light-years and is seen almost exactly edge-on from our perspective. In fact, about 30 million light-years distant in the constellation Andromeda, NGC 891 looks a lot like our Milky Way. At first glance, it has a flat, thin, galactic disk and a central bulge cut along the middle by regions of dark obscuring dust. The combined image data also reveal the galaxy's young blue star clusters and telltale pinkish star forming regions. And remarkably apparent in NGC 891's edge-on presentation are filaments of dust that...
  • Astronomy Picture of the Day -- Andromeda on the Rocks

    09/27/2013 3:11:05 AM PDT · by SunkenCiv · 3 replies
    NASA ^ | September 27, 2013 | (see photo credit)
    Explanation: How far can you see? The Andromeda Galaxy 2.5 million light years away is the most distant object easily seen by the unaided eye. Other apparent denizens of the night sky, stars, clusters, and nebulae, typically range from a few hundred to a few thousand light-years away and lie well within our own Milky Way Galaxy. Also known as M31, the Andromeda Galaxy is the faint smudge near top center of this Earth and skyscape, taken from eastern Italy, near Monte Conero on the Adriatic sea coast. From a few centimeters to a few million light-years, the picture demonstrates...
  • Astronomy Picture of the Day -- M31 versus M33

    09/26/2013 6:34:06 PM PDT · by SunkenCiv · 6 replies
    NASA ^ | September 26, 2013 | (see photo credit)
    Explanation: Separated by about 14 degrees (28 Full Moons) in planet Earth's sky, spiral galaxies M31, left, and M33 are both large members of the Local Group, along with our own Milky Way galaxy. This wide-angle, telescopic mosaic captures colorful details of spiral structure in both, while the massive neighboring galaxies seem to be balanced either side of bright Mirach, beta star in the constellation Andromeda. But M31, the Andromeda Galaxy, is really 2.5 million light-years distant and M33, the Triangulum Galaxy, is also about 3 million light years away. Mirach, just 200 light-years from the Sun, lies well within...
  • Astronomy Picture of the Day -- Moon Over Andromeda

    08/01/2013 7:27:04 PM PDT · by SunkenCiv · 15 replies
    NASA ^ | August 01, 2013 | (see photo credit)
    Explanation: The Great Spiral Galaxy in Andromeda (aka M31), a mere 2.5 million light-years distant, is the closest large spiral to our own Milky Way. Andromeda is visible to the unaided eye as a small, faint, fuzzy patch, but because its surface brightness is so low, casual skygazers can't appreciate the galaxy's impressive extent in planet Earth's sky. This entertaining composite image compares the angular size of the nearby galaxy to a brighter, more familiar celestial sight. In it, a deep exposure of Andromeda, tracing beautiful blue star clusters in spiral arms far beyond the bright yellow core, is combined...
  • Astronomy Picture of the Day -- M31: The Andromeda Galaxy

    06/25/2013 9:10:35 PM PDT · by SunkenCiv · 26 replies
    NASA ^ | June 26, 2013 | (see photo credit)
    Explanation: Andromeda is the nearest major galaxy to our own Milky Way Galaxy. Our Galaxy is thought to look much like Andromeda. Together these two galaxies dominate the Local Group of galaxies. The diffuse light from Andromeda is caused by the hundreds of billions of stars that compose it. The several distinct stars that surround Andromeda's image are actually stars in our Galaxy that are well in front of the background object. Andromeda is frequently referred to as M31 since it is the 31st object on Messier's list of diffuse sky objects. M31 is so distant it takes about two...
  • Astronomy Picture of the Day -- The Waterfall and the World at Night

    05/17/2013 3:56:40 AM PDT · by SunkenCiv · 8 replies
    NASA ^ | May 17, 2013 | (see photo credit)
    Explanation: Above this boreal landscape, the arc of the Milky Way and shimmering aurorae flow through the night. Like an echo, below them lies Iceland's spectacular Godafoss, the Waterfall of the Gods. Shining just below the Milky Way, bright Jupiter is included in the panoramic nightscape recorded on March 9. Faint and diffuse, the Andromeda Galaxy (M31) appears immersed in the auroral glow. The digital stitch of four frames is a first place winner in the 2013 International Earth and Sky Photo Contest on Dark Skies Importance organized by The World at Night. An evocative record of the beauty of...
  • Astronomy Picture of the Day -- Comet of the North

    04/05/2013 3:58:40 AM PDT · by SunkenCiv · 13 replies
    NASA ^ | April 05, 2013 | (see photo credit)
    Explanation: It looks like a double comet, but Comet PanSTARRS (C/2011 L4) is just offering skygazers a Messier moment. Outward bound and fading in this starry scene, the well-photographed comet is remarkably similar in brightness to M31, the Andromeda Galaxy. Tracking through northern skies just below the galaxy, the comet was captured as local midnight approached on April 3. Both comet and galaxy were visible to the eye and are immersed in the faint glow of northern lights as our own Milky Way galaxy arcs over a snowy field near Tänndalen, Sweden. Double star cluster h and chi Persei can...
  • Astronomy Picture of the Day -- Herschel's Andromeda

    02/02/2013 9:46:25 AM PST · by SunkenCiv · 5 replies
    NASA ^ | February 02, 2013 | (see photo credit)
    Explanation: This infrared view from the Herschel Space Observatory explores the Andromeda Galaxy, the closest large spiral galaxy to our own Milky Way. Only 2.5 million light-years distant, the famous island universe is also known to astronomers as M31. Andromeda spans over 200,000 light-years making it more the twice the size of the Milky Way. Shown in false color, the image data reveal the cool dust lanes and clouds that still shine in the infrared but are otherwise dark and opaque at visual wavelengths. Red hues near the galaxy's outskirts represent the glow of dust heated by starlight to a...
  • Astronomy Picture of the Day -- The Fornax Cluster of Galaxies

    01/11/2013 3:10:10 AM PST · by SunkenCiv · 9 replies
    NASA ^ | January 11, 2012 | (see photo credit)
    Explanation: How do clusters of galaxies form and evolve? To help find out, astronomers continue to study the second closest cluster of galaxies to Earth: the Fornax cluster, named for the southern constellation toward which most of its galaxies can be found. Although almost 20 times more distant than our neighboring Andromeda galaxy, Fornax is only about 10 percent further that the better known and more populated Virgo cluster of galaxies. Fornax has a well-defined central region that contains many galaxies, but is still evolving. It has other galaxy groupings that appear distinct and have yet to merge. Seen here,...
  • Thirteen little galaxies all in a row: Configuration deviates from the expected...

    01/06/2013 8:06:50 PM PST · by LibWhacker · 36 replies
    Vancouver Sun ^ | 1/6/13 | Randy Shore
    A string of 13 dwarf galaxies are in orbit around the galaxy Andromeda. The galaxies are spread across a flat plane more than one million light years wide and 30,000 light years thick, moving in synchonicity with each other. The phenomenon is unlike behaviour of other observed galaxies and suggests a hole in our knowledge of galaxy formation. A string of 13 dwarf galaxies in orbit around the massive galaxy Andromeda are not behaving as they should. The galaxies are spread across a flat plane more than one million light years wide and only 30,000 light years thick, moving...
  • Astronomy Picture of the Day -- M33: Triangulum Galaxy

    12/19/2012 9:29:54 PM PST · by SunkenCiv · 9 replies
    NASA ^ | December 20, 2012 | (see photo credit)
    Explanation: The small, northern constellation Triangulum harbors this magnificent face-on spiral galaxy, M33. Its popular names include the Pinwheel Galaxy or just the Triangulum Galaxy. M33 is over 50,000 light-years in diameter, third largest in the Local Group of galaxies after the Andromeda Galaxy (M31), and our own Milky Way. About 3 million light-years from the Milky Way, M33 is itself thought to be a satellite of the Andromeda Galaxy and astronomers in these two galaxies would likely have spectacular views of each other's grand spiral star systems. As for the view from planet Earth, this sharp composite image, a...
  • Astronomy Picture of the Day -- NGC 206 and the Star Clouds of Andromeda

    10/24/2012 3:44:36 AM PDT · by SunkenCiv · 8 replies
    NASA ^ | October 24, 2012 | (see photo credit)
    Explanation: The large stellar association cataloged as NGC 206 is nestled within the dusty arms of neighboring spiral galaxy Andromeda (M31), 2.5 million light-years distant. Seen near the center of this gorgeous close-up of the southwestern extent of Andromeda's disk, the bright, blue stars of NGC 206 indicate its youth. Its youngest massive stars are less than 10 million years old. Much larger than the clusters of young stars in the disk of our Milky Way galaxy known as open or galactic clusters, NGC 206 spans about 4,000 light-years. That's comparable in size to the giant stellar nurseries NGC 604...
  • Universe has more hydrogen than we thought (Undark’ matter hidden in plain view)

    06/02/2012 11:45:49 AM PDT · by Ernest_at_the_Beach · 26 replies
    The Register ^ | 31st May 2012 23:59 GMT | Richard Chirgwin
    A re-analysis of radio telescope observations from three countries has yielded a surprising result: nearby galaxies harbour one-third more hydrogen than had previously been estimated. While nothing like enough matter to solve physics’ “dark matter” problem, the work by CSIRO astronomer Dr Robert Braun (chief scientist at the agency’s Astronomy and Space Science division in Sydney) also helps explain why the rate of star formation has slowed down. While there’s more hydrogen than astronomers had thought, its distribution makes star formation more difficult. Andromeda – the galaxy headed for a catastrophic collision with our own in about four billion years...
  • Astronomy Picture of the Day -- Milky Way Galaxy Doomed: Collision with Andromeda Pending

    06/03/2012 9:08:20 PM PDT · by SunkenCiv · 26 replies
    NASA ^ | June 04, 2012 | (see photo credit)
    Explanation: Will our Milky Way Galaxy collide one day with its larger neighbor, the Andromeda Galaxy? Most likely, yes. Careful plotting of slight displacements of M31's stars relative to background galaxies on recent Hubble Space Telescope images indicate that the center of M31 could be on a direct collision course with the center of our home galaxy. Still, the errors in sideways velocity appear sufficiently large to admit a good chance that the central parts of the two galaxies will miss, slightly, but will become close enough for their outer halos to become gravitationally entangled. Once that happens, the two...
  • Milky Way Galaxy Doomed to Head-On Crash with Andromeda (We'Re DooMed In 4 billion years Alert!! )

    05/31/2012 6:54:00 PM PDT · by NormsRevenge · 73 replies
    SPACE.com ^ | 5/31/12 | Mike Wall
    Four billion years from now, the Milky Way galaxy as we know it will cease to exist. Our Milky Way is bound for a head-on collision with the similar-sized Andromeda galaxy, researchers announced today (May 31). Over time, the huge galactic smashup will create an entirely new hybrid galaxy, one likely bearing an elliptical shape rather than the Milky Way's trademark spiral-armed disk. "We do know of other galaxies in the local universe around us that are in the process of colliding and merging," Roeland van der Marel, of the Space Telescope Science Institute in Baltimore, told reporters today. "However,...
  • Astronomy Picture of the Day -- GALEX: The Andromeda Galaxy

    05/18/2012 4:22:35 AM PDT · by SunkenCiv · 14 replies
    NASA ^ | May 18, 2012 | (see photo credit)
    Explanation: A mere 2.5 million light-years away, the Andromeda Galaxy really is just next door as large galaxy's go. So close, and spanning some 260,000 light-years, it took 11 different image fields from the Galaxy Evolution Explorer (GALEX) satellite's telescope to produce this gorgeous portrait of the spiral galaxy in ultraviolet light. While its spiral arms stand out in visible light images of Andromeda (also known as M31), the arms look more like rings in the GALEX ultraviolet view, dominated by hot, young, massive stars. As sites of intense star formation, the rings have been interpreted has evidence Andromeda collided...
  • First extragalactic exoplanet may have been found

    06/10/2009 6:46:13 PM PDT · by KevinDavis · 17 replies · 535+ views
    New Scientist Space ^ | 06/10/09 | Stephen Battersby
    We could find planets in other galaxies using today's technology, according to a new simulation. The study gives credence to a tentative detection of a planet in Andromeda, our nearest large galactic neighbour. The idea is to use gravitational microlensing, in which a distant source star is briefly magnified by the gravity of an object passing in front of it. This technique has already found several planets in our galaxy, out to distances of thousands of light years. Extending the method from thousands to millions of light years won't be easy, says Philippe Jetzer of the University of Zürich in...
  • Milky Way a Swifter Spinner, More Massive, New Measurements Show

    01/05/2009 2:41:26 PM PST · by NormsRevenge · 17 replies · 604+ views
    Long Beach, CA - Fasten your seat belts -- we're faster, heavier, and more likely to collide than we thought. Astronomers making high-precision measurements of the Milky Way say our Galaxy is rotating about 100,000 miles per hour faster than previously understood. That increase in speed, said Mark Reid of the Harvard-Smithsonian Center for Astrophysics, increases the Milky Way's mass by 50 percent, bringing it even with the Andromeda Galaxy. "No longer will we think of the Milky Way as the little sister of the Andromeda Galaxy in our Local Group family." The larger mass, in turn, means a greater...
  • Andromeda Galaxy Five Time Bigger Than Thought

    01/08/2007 5:03:49 PM PST · by KevinDavis · 14 replies · 374+ views
    space.com ^ | 01/07/07 | Ker Than
    SEATTLE - The discovery of several large, metal-poor stars located far from the center of the Andromeda galaxy suggests our nearest galactic neighbor might be up to five times larger than previously thought. The newfound stars are massive, bloated stars known as red giants. Although found far beyond the most visible portion of Andromeda—its swirling disk—the stars are still gravitationally bound to the galaxy and make up part of its extended "halo." "We're typically used to thinking of Andromeda as this tiny speck of light, but the actual size of the halo…extends to a very large radius and it actually...
  • New images may give clues on universe's origins (Forensic Evidence of a Galactic Collision)

    10/18/2006 6:57:39 PM PDT · by NormsRevenge · 15 replies · 682+ views
    Reuters on Yahoo ^ | 10/18/06 | Sarah McGregor
    JOHANNESBURG (Reuters) - The newly discovered collision of two galaxies millions of years ago, which sparked rings of fire that are still expanding, may offer new clues on the origins of the universe, astronomers said on Wednesday. New images of the Andromeda Galaxy were captured by an infrared camera aboard the Spitzer Space Telescope and are described in the science journal 'Nature'. The pictures offer fresh insight into the ever-changing nature of galaxies, said Harvard University astrophysicist Giovanni Fazio. Fazio, the mastermind behind the Spitzer, is considered one of the world's top space pioneers. "We thought it was a plain,...
  • Strange Setup: Andromeda's Satellite Galaxies All Lined Up

    01/24/2006 6:31:08 PM PST · by KevinDavis · 35 replies · 1,406+ views
    space.com ^ | 01/23/06 | Ker Than
    An unusually high number of galaxies are aligned along a single plane running through the center of the giant Andromeda galaxy. Scientists don’t have a theory to explain why. Galactic cannibalism or dark matter may be responsible, researchers say. The Andromeda galaxy is located at a distance of 2.5 million light-years away and is the nearest spiral galaxy to the Milky Way. Like our own galaxy, Andromeda is surrounded by numerous dwarf galaxy satellites. Many of these satellites are within 1.3 million light-years or less of the galaxy’s main disk. Using the Hubble Space Telescope, Eva Grebel and Andrew Koch...
  • Astronomy Picture for Today

    12/23/2005 5:11:17 AM PST · by HOTTIEBOY · 8 replies · 404+ views
    Nasa ^ | 12/22/2005 | DG
    Andromeda Island Universe Credit & Copyright: Robert Gendler Explanation: The most distant object easily visible to the unaided eye is M31, the great Andromeda Galaxy some two million light-years away. But without a telescope, even this immense spiral galaxy - spanning over 200,000 light years - appears as a faint, nebulous cloud in the constellation Andromeda. In contrast, a bright yellow nucleus, dark winding dust lanes, gorgeous blue spiral arms and star clusters are recorded in this stunning telescopic digital mosaic with a cumulative exposure of over 90 hours. While even casual skygazers are now inspired by the knowledge...
  • Small Galaxy Punches Hole In Andromeda

    10/17/2005 7:06:43 PM PDT · by KevinDavis · 28 replies · 1,034+ views
    space.com ^ | 10/17/05 | Ker Then
    Sometime in the distant past, the dwarf galaxy M32 hurled itself at its much larger neighbor Andromeda, delivering an explosive uppercut punch that left a jagged hole nearly 10,000 light-years across in Andromeda's plane of stars, one that millions of years later has yet to fully heal. New infrared images from NASA's Spitzer Space Telescope recently revealed the hole, which is hidden to optical telescopes behind Andromeda's veils of cosmic dust and gas. The Spitzer images also revealed other features of Andromeda that have never been seen before, including bright, new stars and spiral arcs swirling out from the galaxy's...
  • Spitzer's Stunning Portrait of Andromeda

    10/17/2005 7:55:09 AM PDT · by kanawa · 90 replies · 2,471+ views
    Universe Today. ^ | Oct 14, 2005 | Staff
    NASA's Spitzer Space Telescope has captured a stunning infrared view of Messier 31, the famous spiral galaxy also known as Andromeda. Andromeda is the most-studied galaxy outside our own Milky Way, yet Spitzer's sensitive infrared eyes have detected captivating new features, including bright, aging stars and a spiral arc in the center of the galaxy. The infrared image also reveals an off-centered ring of star formation and a hole in the galaxy's spiral disk of arms. These asymmetrical features may have been caused by interactions with the several satellite galaxies that surround Andromeda. "Occasionally small satellite galaxies run straight through...
  • Andromeda galaxy larger than thought-astronomers

    05/30/2005 6:23:52 PM PDT · by NormsRevenge · 123 replies · 2,322+ views
    Reuters on Yahoo ^ | 5/30/05 | Reuters
    WASHINGTON (Reuters) - The Andromeda galaxy just got bigger -- three times bigger, astronomers said on Monday. The galaxy is not actually expanding. But new measurements suggest that the nearest galaxy to our own Milky Way is three times broader than astronomers had thought. They now believe a thin sprinkling of stars once thought to be a halo is in fact part of Andromeda's main disk. That makes the spiral galaxy, so close to Earth that it appeared as a fuzzy blob to the ancients, more than 220,000 light-years across -- triple the previous estimate of 70,000 to 80,000 light-years....
  • Tonight's Sci-Fi Listing - 05/13/05

    05/13/2005 5:02:28 AM PDT · by KevinDavis · 13 replies · 566+ views
    05/13/05 | Kevin Davis
    Tonight's Sci-Fi Listing theme: Series Finale Star Trek: 2hr special.. Part 2 of 2 and then the Series Finale.. Basically Trek is going out on a whimper.. It starts at 8pm/7pm.. Andromeda: 7pm/6pm . All I know it is the last episode and I really don't know what the hell is going on with that show..
  • Astronomy Picture of the Day 12-22-03

    12/22/2003 12:32:50 AM PST · by petuniasevan · 6 replies · 131+ views
    NASA ^ | 12-22-03 | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover 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. 2003 December 22 The Andromeda Galaxy from GALEX Credit: GALEX team, Caltech, NASA Explanation: Why does the Andromeda Galaxy have a giant ring? Viewed in ultraviolet light, the closet major galaxy to our Milky Way Galaxy looks more like a ring galaxy than a spiral. The ring is highlighted beautifully in this newly released image mosaic of Andromeda (M31) taken by the GALaxy Evolution Explorer (GALEX), a satellite...
  • Astronomy Picture of the Day 5-19-03

    05/18/2003 9:39:46 PM PDT · by petuniasevan · 5 replies · 178+ views
    NASA ^ | 5-19-03 | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover 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. 2003 May 19 The Andromeda Deep Field Credit: T. M. Brown (STScI) et al., ESA, NASA Explanation: What can you learn from looking into the depths of space? In an effort to find out true ages of stars in neighboring Andromeda galaxy's halo, astronomers stared into the galaxy giant with the new Advanced Camera for Surveys through the Hubble Space Telescope. The resulting exposure of over three days,...
  • Astronomy Picture of the Day 10-21-02

    10/20/2002 10:52:14 PM PDT · by petuniasevan · 4 replies · 548+ views
    NASA ^ | 10-21-02 | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover 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. 2002 October 21 M31: The Andromeda Galaxy Credit & Copyright: Robert Gendler Explanation: Andromeda is the nearest major galaxy to our own Milky Way Galaxy. Our Galaxy is thought to look much like Andromeda. Together these two galaxies dominate the Local Group of galaxies. The diffuse light from Andromeda is caused by the hundreds of billions of stars that compose it. The several distinct stars that surround Andromeda's...
  • Astronomy Picture of the Day 8-23-02

    08/22/2002 9:55:52 PM PDT · by petuniasevan · 8 replies · 356+ views
    NASA ^ | 8-23-02 | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover 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. 2002 August 23 Island Universe, Cosmic Sand Credit & Copyright: Rick Scott Explanation: On August 13, while counting Perseid meteors under dark, early morning Arizona skies, Rick Scott set out to photograph their fleeting but fiery trails. The equipment he used included a telephoto lens and fast color film. After 21 pictures he'd caught only two meteors, but luckily this was one of them. Tracking the sky, his...
  • Astronomy Picture of the Day 5-18-02

    05/17/2002 11:03:39 PM PDT · by petuniasevan · 20 replies · 360+ views
    NASA ^ | 5-18-02 | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover 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. 2002 May 18 Andromeda Island Universe Credit & Copyright: Robert Gendler Explanation: How far can you see? The most distant object easily visible to the unaided eye is M31, the great Andromeda Galaxy some two million light-years away. Without a telescope, even this immense spiral galaxy appears as an unremarkable, faint, nebulous cloud in the constellation Andromeda. But a bright yellow nucleus, dark winding dust lanes, gorgeous blue...
  • Astronomy Picture of the Day 4-12-02

    04/12/2002 7:16:30 PM PDT · by petuniasevan · 6 replies · 236+ views
    NASA ^ | 4-12-02 | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover 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. 2002 April 12 A Galaxy is not a Comet Credit & Copyright: Juan Carlos Casado Explanation: This gorgeous galaxy and comet portrait was recorded on April 5th in the skies over the Oriental Pyrenees near Figueres, Spain. From a site above 1,100 meters, astrophotographer Juan Carlos Casado used a guided time exposure, fast film, and a telephoto lens to capture the predicted conjunction of the bright Comet Ikeya-Zhang...
  • Astronomy Picture of the Day 4-3-02

    04/03/2002 8:21:39 PM PST · by petuniasevan · 8 replies · 229+ views
    NASA ^ | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover 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. 2002 April 4 Ikeya-Zhang: Comet Over Colorado Credit & Copyright: Jimmy Westlake (Colorado Mountain College) Explanation: Comet Ikeya-Zhang ("ee-KAY-uh JONG") has become a most photogenic comet. This lovely early evening view of the comet in Rocky Mountain skies looks northwest over ridges and low clouds. The time exposure was recorded on March 31st from an 8,000 foot elevation near Yampa, Colorado, USA. Sporting a sweeping yellowish dust tail...