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Astronomy Picture Of the Day (APOD)
![Сейфертовская галактика NGC 7742](https://images.astronet.ru/pubd/2004/08/12/0001199093/ngc7742_hst_big.preview.jpg)
23.10.1998
This might resemble a fried egg you've had for breakfast, but it's actually much larger. In fact, ringed by blue-tinted star forming regions and faintly visible spiral arms, the yolk-yellow center of this face-on spiral galaxy, NGC 7742, is about 3,000 light-years across.
![Юпитер: столкновение штормов](https://images.astronet.ru/pubd/2004/08/11/0001199086/whiteoval_gal.preview.jpg)
22.10.1998
Sometime in February, two of three long-lived Jovian storm systems known as "white ovals" apparently collided and merged -- forming what is now likely the second largest storm in the Solar System, after the famous Great Red Spot.
![Пропавшие полярные сияния](https://images.astronet.ru/pubd/2004/08/11/0001199084/aurora1_jpd.preview.jpg)
21.10.1998
Sometimes, near midnight, auroras suddenly stop. Nobody knows why. This nightside gap in aurora was confirmed recently by D. Chua (U. Washington) and colleagues in data from the Ultraviolet Imager onboard the Polar spacecraft.
![Уран в инфракрасном свете](https://images.astronet.ru/pubd/2004/08/11/0001199081/uranusclouds_hst_big.preview.jpg)
20.10.1998
The Sun's third largest planet usually looks quite dull. Uranus typically appears as a featureless small spot in a small telescope or a featureless large orb in a large telescope. Last August, however...
![Гора Олимп с орбиты](https://images.astronet.ru/pubd/2004/08/11/0001199079/olympus_mgs_big.preview.jpg)
19.10.1998
Olympus Mons on Mars is the largest volcano in the Solar System. Although three times higher than Earth's Mount Everest, Olympus Mons would not be difficult to climb because of the volcano's great breadth.
![Кольца Сатурна с торца](https://images.astronet.ru/pubd/2004/08/11/0001199077/saturn_24Apr_hst_big.preview.gif)
18.10.1998
Saturn's rings are actually very thin. This picture from the Hubble Space Telescope was taken on August 6, 1995 when the rings lined up sideways as seen from Earth. Saturn's largest moon Titan is seen on the left, and Titan's shadow can be seen on Saturn's cloud tops!
![Гигантское шаровое скопление в M31](https://images.astronet.ru/pubd/2004/08/11/0001199075/m31gc1_hst_big.preview.jpg)
17.10.1998
This cluster of stars, known as G1, is the brightest globular cluster in the whole Local Group of galaxies. Also called Mayall II, it orbits the center of the largest nearby galaxy: M31. G1 contains over 300,000 stars and is almost as old as the entire universe.
![Полярные сияния на Ио](https://images.astronet.ru/pubd/2004/08/11/0001199073/ioaurora_gal_big.preview.jpg)
16.10.1998
Alluring aurora surrounding Io (eye-oh) appear as a ghostly glow while the volcanic moon orbits within Jupiter's dark shadow. Gas giant Jupiter is off to the right of this image, recorded in May by the robot Galileo spacecraft's solid state imaging camera from a distance of about 1.3 million kilometers.
![Великий день для СОХО](https://images.astronet.ru/pubd/2004/08/11/0001199071/eithe_soho13_big.preview.gif)
15.10.1998
The last 10 days have been great days for SOHO, the space-based SOlar and Heliospheric Observatory. Contact was completely lost with this international research spacecraft over 3 months ago but recovery teams have reacquired control of SOHO and, beginning October 5th, have been successfully switching on its scientific instruments.
![Самая большая озоновая дыра](https://images.astronet.ru/pubd/2004/08/11/0001199069/ozonehole_toms.preview.jpg)
14.10.1998
It's back, and it's bigger than ever. The ozone hole that has been a cause of concern in recent years has again reformed over Earth's South Pole. The seasonal recurrence of the ozone hole was expected, although the size of the hole has never been so large this early in the season.
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