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Astronomy Picture Of the Day (APOD)
![Является ли ядро NGC 2440 самой горячей звездой](https://images.astronet.ru/pubd/2002/08/22/0001179111/ngc2440_hst_big.preview.gif)
30.11.1995
In the center of the above photograph lies a star with one of the hottest surface temperatures yet confirmed. This bright white dwarf star's surface has been measured at greater than 200,000 degrees Celsius - more than 30 times hotter than that of our own Sun.
![Выпуск "Комптона"](https://images.astronet.ru/pubd/2002/08/22/0001179110/cgroastronaut_shuttle.preview.gif)
29.11.1995
Named for Nobel laureate physicist Arthur Holly Compton, the Compton Gamma Ray Observatory (CGRO) Satellite was launched in April of 1991 aboard the Space Shuttle Atlantis. CGRO's mission is to explore the Universe at gamma-ray energies.
![Тень на южном полюсе Луны](https://images.astronet.ru/pubd/2002/08/22/0001179109/lunarsp_clem.preview.gif)
28.11.1995
In 1994, the space probe Clementine spent 70 days in lunar orbit mapping the Moon's surface. Shown above is a dramatically detailed composite view centered on the Moon's South Pole constructed from 1500 Clementine images.
![Совсем близко к черной дыре](https://images.astronet.ru/pubd/2002/08/22/0001179108/bh_rjn.preview.gif)
27.11.1995
What would you see if you went right up to a black hole? Above are two computer generated pictures highlighting how strange things would look. On the left is a normal star field containing the constellation Orion. Notice the three stars of nearly equal brightness that make up Orion's Belt.
![Звезда, вокруг которой движутся фотоны](https://images.astronet.ru/pubd/2002/08/22/0001179107/photonsphere_rjn.preview.gif)
26.11.1995
The above computer animated picture depicts how a very compact star would look to a nearby observer. The star pictured is actually more compact that any known except a black hole, so it is only hypothetical. The observer is situated at the photon sphere, where photons can orbit in a circle.
![Самый чистый спутник Сатурна Энцелад](https://images.astronet.ru/pubd/2003/09/23/0001193241/enceladus_vg2_big.preview.gif)
25.11.1995
Enceladus orbits Saturn between the smaller Mimas and the larger Tethys. Enceladus is composed mostly of water ice and has the cleanest and purest ice surface in the Solar System. It's surface therefore appears nearly white. The surface also has many unusual groves and relatively few craters, like Jupiter's moon Ganymede.
![Спутник Сатурна Тефия](https://images.astronet.ru/pubd/2002/08/22/0001179105/tethys_vg2_big.preview.gif)
24.11.1995
Tethys is one of the larger and closer moons of Saturn. It was visited by both Voyager spacecraft - Voyager 1 in November 1980 and by Voyager 2 in August 1981. Tethys is now known to be composed almost completely of water ice. Tethys shows a large impact crater that nearly circles the planet.
![M1: поляризованный "Краб"](https://images.astronet.ru/pubd/2002/08/22/0001179104/crabpol_h5m.preview.gif)
23.11.1995
The Crab Nebula resulted from a star that exploded - a supernova. Although the stellar explosion that caused the Crab Nebula was seen over 900 years ago, the nebula itself still expands and shines. Much of the emitted light has been found to be polarized. Light waves with the same polarization vibrate in the same plane.
![M1 - "взрывающаяся" Крабовидная туманность](https://images.astronet.ru/pubd/2002/08/22/0001179103/crab_h5m.preview.gif)
22.11.1995
The Crab Nebula resulted from a star that exploded - a supernova. The outer layers of the star were thrown violently into space, while the inner core collapsed to form a neutron star. This neutron...
![M42: мозаичное изображение туманности Ориона](https://images.astronet.ru/pubd/2002/08/22/0001179102/orion2_hst_big.preview.gif)
21.11.1995
The Great Nebula in Orion is one of the most interesting of all astronomical nebulae known. Here fifteen pictures from the Hubble Space Telescope have been merged to show the great expanse and diverse nature of the nebula.
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