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Astronomy Picture Of the Day (APOD)
![Радужные облака над Колорадо](https://images.astronet.ru/pubd/2007/11/25/0001224798/iridescent_allen.preview.jpg)
25.11.2007
Why would a cloud appear to be different colors? A relatively rare phenomenon known as iridescent clouds can show unusual colors vividly or a whole spectrum of colors simultaneously. These clouds are formed of small water droplets of nearly uniform size.
![Галактики в Пегасе](https://images.astronet.ru/pubd/2007/11/24/0001224762/NGC7331-hager800.preview.jpg)
24.11.2007
This wide, sharp telescopic view reveals galaxies scattered beyond the stars near the northern boundary of the high-flying constellation Pegasus. Prominent at the upper right is NGC 7331. A mere 50 million light-years away, the large spiral is one of the brighter galaxies not included in Charles Messier's famous 18th century catalog.
![Туманность Медуза](https://images.astronet.ru/pubd/2007/11/23/0001224730/MedusaNBStars_goldman800.preview.jpg)
23.11.2007
Braided, serpentine filaments of glowing gas suggest this nebula's popular name, The Medusa Nebula. Also known as Abell 21, this Medusa is an old planetary nebula some 1,500 light-years away in the constellation Gemini. Like its mythological namesake, the nebula is associated with a dramatic transformation.
![Плеяды и звездная пыль](https://images.astronet.ru/pubd/2007/11/22/0001224687/M45WF_hallas_r800.preview.jpg)
22.11.2007
Hurtling through a cosmic dust cloud a mere 400 light-years away, the lovely Pleiades or Seven Sisters star cluster is well-known for its striking blue reflection nebulae. This remarkable wide-field (3 degree) image...
![Огромная комета Холмса](https://images.astronet.ru/pubd/2007/11/21/0001224669/Holmes-CFHT_Cuillandre800.preview.jpg)
21.11.2007
The spherical coma of Comet Holmes has swollen to a diameter of over 1.4 million kilometers, making the tenuous, dusty cloud even bigger than the Sun. Scattering sunlight, all that dust and gas came...
![Восход Земли](https://images.astronet.ru/pubd/2007/11/20/0001224649/earthrise_kayuga.preview.jpg)
20.11.2007
What does the Earth look like from the Moon? A new version of this space age perspective was captured by the robotic Kaguya spacecraft currently in orbit around Earth's Moon. Launched two months...
![Полярное сияние вдалеке](https://images.astronet.ru/pubd/2007/11/19/0001224567/aurora_mcvay.preview.jpg)
19.11.2007
Some auroras can only be seen with a camera. They are called sub-visual and are too faint to be seen with the unaided eye. The reason is that the human eye only accumulates light for a fraction of a second at a time, while a camera shutter can be left open indefinitely.
![M45: скопление Плеяды](https://images.astronet.ru/pubd/2007/11/19/0001224556/pleiades_fs.preview.jpg)
18.11.2007
Perhaps the most famous star cluster on the sky, the Pleiades can be seen without binoculars from even the depths of a light-polluted city. Also known as the Seven Sisters and M45, the Pleiades is one of the brightest and closest open clusters.
![Лес и небо](https://images.astronet.ru/pubd/2007/11/17/0001224539/forestSky_jacques800.preview.jpg)
17.11.2007
With pine trees in dim silhouette, this skyscape from Breil-sur-Roya in southern France was captured on November 11. In the early evening scene, a satellite seems to streak through the branches, while bright, round, fuzzy Comet Holmes appears to lie just beyond them, near the stars of the constellation Perseus.
![Выхлоп ракеты](https://images.astronet.ru/pubd/2007/11/16/0001224536/rocketOrion_kodama720.preview.jpg)
16.11.2007
This gorgeous image of Orion shows off the constellation's young stars and cosmic clouds of hydrogen gas and dust. Made with a film camera tracking the stars on November 11, the exposure lasted some 40 minutes.
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