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Astronomy Picture Of the Day (APOD)
![Зеленый луч над Италией](http://images.astronet.ru/pubd/2007/01/29/0001220542/greenset_pivato.preview.jpg)
29.01.2007
How could the Sun turn green? Difficult to observe, the momentary green flash above the rising or setting sun has been documented as a phenomenon caused by the atmospheric bending or refraction of sunlight.
![Гиперион: спутник Сатурна со странными кратерами](http://images.astronet.ru/pubd/2007/01/29/0001220538/hyperion2_cassini.preview.jpg)
28.01.2007
What lies at the bottom of Hyperion's strange craters? Nobody knows. To help find out, the robot Cassini spacecraft now orbiting Saturn swooped past the sponge-textured moon in late 2005 and took an image of unprecedented detail.
![Замок и небо](http://images.astronet.ru/pubd/2007/02/12/0001220752/castlesky_bellido_c720.preview.jpg)
27.01.2007
While Comet McNaught ruled southern skies, last week's conjunction of the Moon and Venus could be enjoyed by denizens of both hemispheres of planet Earth. The two more commonly viewed celestial beacons produced this lovely twilight scene, recorded last Saturday in skies above Almodovar near Cordoba in southern Spain.
![Звездные скопления в NGC 1313](http://images.astronet.ru/pubd/2007/01/30/0001220550/ngc1313_hst_c720.preview.jpg)
26.01.2007
Like grains of sand on a cosmic beach, individual stars of barred spiral galaxy NGC 1313 are resolved in this sharp composite from the Hubble Space Telescope's Advanced Camera for Surveys (ACS). The inner region of the galaxy is pictured, spanning about 10,000 light-years.
![Колыбель в Орионе](http://images.astronet.ru/pubd/2007/01/25/0001220493/orioncradle_hallas_r780.preview.jpg)
25.01.2007
Cradled in glowing hydrogen, stellar nurseries in Orion lie at the edge of a giant molecular cloud some 1,500 light-years away. This breath-taking view spans about 13 degrees across the center of the well-known constellation with the Great Orion Nebula, the closest large star forming region, just right of center.
![Хвост кометы над горизонтом](http://images.astronet.ru/pubd/2007/01/24/0001220475/naughtail_fulle.preview.jpg)
24.01.2007
What's happening over the horizon? Many a sky enthusiast who thought they had seen it all had never seen anything like this. To the surprise of many Northern Hemisphere observers, the tail of Comet McNaught remained visible even after the comet's head set ahead of the Sun.
![Млечный Путь над Параналом](http://images.astronet.ru/pubd/2007/01/23/0001220461/mwsetparanal_guisard_big.preview.gif)
23.01.2007
It's not the sky that's falling. More accurately, the Earth is rising. The Earth's rotation gives a continually changing view to all Earth observers, including those measuring the universe at the Paranal Observatory.
![Великолепный хвост кометы МакНота](http://images.astronet.ru/pubd/2007/01/22/0001220446/comet_mcnaught.preview.jpg)
22.01.2007
Comet McNaught, the Great Comet of 2007, has grown a long and filamentary tail. The spectacular tail spreads across the sky and is visible to Southern Hemisphere observers just after sunset. The head of the comet remains quite bright and easily visible to even city observers without any optical aide.
![Галактика Сомбреро в инфракрасном свете](http://images.astronet.ru/pubd/2007/01/22/0001220436/sombrero_spitzer.preview.jpg)
21.01.2007
This floating ring is the size of a galaxy. In fact, it is part of the photogenic Sombrero Galaxy, one of the largest galaxies in the nearby Virgo Cluster of Galaxies. The dark band of dust that obscures the mid-section of the Sombrero Galaxy in optical light actually glows brightly in infrared light.
![Фильм СОХО о комете МакНота](http://images.astronet.ru/pubd/2007/01/22/0001220435/sohoMcNaught_cropframe.preview.jpg)
20.01.2007
This frame from a spectacular time lapse movie shows Comet McNaught - the Great Comet of 2007 - sweeping through the inner solar system. The movie frames were recorded from January 12 through Jan 16 by a coronograph onboard the sun-staring SOHO spacecraft.
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