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Keywords: planetary nebula, Helix Nebula, NGC 7293
![Гало вокруг туманности Кошачий глаз](https://images.astronet.ru/pubd/2010/05/09/0001244987/catseye2_not.preview.jpg)
9.05.2010
The Cat's Eye Nebula (NGC 6543) is one of the best known planetary nebulae in the sky. Its haunting symmetries are seen in the very central region of this stunning false-color picture, processed...
![Северная Сова и Южная Сова](https://images.astronet.ru/pubd/2010/05/06/0001244954/OwlNS_goldman_c900.preview.jpg)
6.05.2010
Captured in colorful telescopic portraits, two cosmic owls glare back toward planet Earth in this intriguing comparison of planetary nebulae. On the left is M97 in the constellation Ursa Major, also known in the northern hemisphere as the Owl Nebula.
![Гало вокруг туманности Кошачий глаз](https://images.astronet.ru/pubd/2003/11/03/0001194586/n6543_ing_c.preview.jpg)
1.11.2003
The Cat's Eye Nebula (NGC 6543) is one of the best known planetary nebulae in the sky. Its haunting symmetries are seen in the very central region of this stunning false-color picture, processed...
![Гало Кошачьего глаза](https://images.astronet.ru/pubd/2002/09/04/0001179511/n6543_ing_c.preview.jpg)
4.09.2002
The Cat's Eye Nebula (NGC 6543) is one of the best known planetary nebulae in the sky. Its haunting symmetries are seen in the very central region of this stunning false-color picture, processed...
![NGC 7008: туманность Эмбрион](https://images.astronet.ru/pubd/2008/08/25/0001229280/ngc7008_hagercollab_c800.preview.jpg)
25.08.2008
Compact and round, NGC 7008 is recognized as a planetary nebula about 2,800 light-years distant in the nebula rich constellation of Cygnus. This impressive telescopic view shows off NGC 7008's remarkable colors...
![Прекрасная туманность Бумеранг](https://images.astronet.ru/pubd/2007/12/28/0001225327/boomerang_hst.preview.jpg)
28.12.2007
This symmetric cloud dubbed the Boomerang Nebula was created by a high-speed wind of gas and dust blowing from an aging central star at speeds of nearly 600,000 kilometers per hour. The rapid...
![Туманность Улитка в свечении водорода и кислорода](https://images.astronet.ru/pubd/2019/02/13/0001457890/Helix_Campbell_960.preview.jpg)
13.02.2019
Is the Helix Nebula looking at you? No, not in any biological sense, but it does look quite like an eye. The Helix Nebula is so named because it also appears that you are looking down the axis of a helix.
![Туманность Калабаш от телескопа им.Хаббла](https://images.astronet.ru/pubd/2017/02/15/0001375904/Calabash_HubbleSchmidt_960.preview.jpg)
15.02.2017
Fast expanding gas clouds mark the end for a central star in the Calabash Nebula. The once-normal star has run out of nuclear fuel, causing the central regions to contract into a white dwarf. Some of the liberated energy causes the outer envelope of the star to expand.
![MyCn18: планетарная туманность в форме песочных часов](https://images.astronet.ru/pubd/2015/05/10/0001336879/mycn18_hst_960.preview.jpg)
10.05.2015
The sands of time are running out for the central star of this hourglass-shaped planetary nebula. With its nuclear fuel exhausted, this brief, spectacular, closing phase of a Sun-like star's life occurs as its outer layers are ejected - its core becoming a cooling, fading white dwarf.
![Планетарная туманность Mz3 – Туманность "Муравей"](https://images.astronet.ru/pubd/2014/05/30/0001313535/mz3_hst.preview.jpg)
5.02.2001
Why isn't this ant a big sphere? Planetary nebula Mz3 is being cast off by a star similar to our Sun that is, surely, round. Why then would the gas that is streaming away create an ant-shaped nebula that is distinctly not round?
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