Pick a Postcard - Astrophysical Objects
 This image, taken by the Hubble Space Telescope, shows a very complex planetary nebula. It is nicknamed the "Cat's Eye Nebula" and is about 1,000 years old. Courtesy of NASA |  This is an image of Antares & Rho Ophiuchi. Courtesy of the Anglo-Australian Observatory/Royal Observatory Edinburgh |
 This is the Trifid Nebula in Sagittarius. The red HII region with its young cluster is surrounded by a blue reflection nebula. Courtesy of the Anglo-Australian Observatory/Royal Observatory Edinburgh |  This image shows stars that excite the Trifid Nebula. Courtesy of the Anglo-Australian Observatory/Royal Observatory Edinburgh |
 This is the Horsehead Nebula and NGC 2023. Courtesy of the Anglo-Australian Observatory/Royal Observatory Edinburgh |  This is the Tarantula Nebula around 30 Doradus. Courtesy of the Anglo-Australian Observatory/Royal Observatory Edinburgh |
 This is an image of the Horsehead Nebula which is 1500 light years away. Courtesy of the Anglo-Australian Observatory/Royal Observatory Edinburgh |  This image shows a small portion of a nebula called the "Cygnus Loop." This supernova remnant lies 2,500 light-years away in the constellation Cygnus the Swan. Courtesy of Jeff Hester (Arizona State University) and NASA |
 This is an image of the Orion Nebula which is an emission nebula 1,500 light years away. It is known as "The Great Nebula of Orion." Courtesy of the Anglo-Australian Observatory/Royal Observatory Edinburgh |  This is the Eskimo Nebula also known as Clownface Nebula which has an unusually bright central star. Courtesy of Jeff Hester (Arizona State University) and NASA |
 This is the Trifid Nebula which is 2,000 light years away. It is called this because of the three dark division lanes. Courtesy of the Anglo-Australian Observatory/Royal Observatory Edinburgh |  This is a spiral galaxy, NGC 2997. Courtesy of the Anglo-Australian Observatory/Royal Observatory Edinburgh |
 This is the Helix nebula, a planetary nebula in NGC 7293. Courtesy of the Anglo-Australian Observatory/Royal Observatory Edinburgh |  This is the Andromeda Galaxy, our nearest large neighbor galaxy. Courtesy of NASA |
 This is the Whirlpool Galaxy M51 and was one of Messier's original discoveries. He discovered it on October 13, 1773, when observing a comet. Courtesy of NASA |  This is an image of the radio galaxy Centaurus A. Courtesy of the Anglo-Australian Observatory/Royal Observatory Edinburgh |
 This is the Barred Sprial Galaxy, NGC 1365. Courtesy of the Anglo-Australian Observatory/Royal Observatory Edinburgh |  This image shows startrails around the South Celestial Pole. Courtesy of the Anglo-Australian Observatory/Royal Observatory Edinburgh |
