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Keywords: ultraviolet, Andromeda galaxy
![Гало Андромеды](https://images.astronet.ru/pubd/2020/09/03/0001692017/STScI-H-p2046b-m-1024x1025.preview.jpg)
3.09.2020
M31, the Andromeda Galaxy, is the closest large spiral galaxy to our Milky Way. Some 2.5 million light-years distant it shines in Earth's night sky as a small, faint, elongated cloud just visible to the unaided eye.
![M31: галактика Андромеды](https://images.astronet.ru/pubd/2023/03/22/0001890593/M31_Alharbi_960.preview.jpg)
22.03.2023
How far can you see? The most distant object easily visible to the unaided eye is M31, the great Andromeda Galaxy, over two million light-years away. Without a telescope, even this immense spiral galaxy appears as an unremarkable, faint, nebulous cloud in the constellation Andromeda.
![Луна над Андромедой](https://images.astronet.ru/pubd/2020/09/28/0001698498/m31abtpmoon1024.preview.jpg)
25.09.2020
The Great Spiral Galaxy in Andromeda (also known as M31), a mere 2.5 million light-years distant, is the closest large spiral to our own Milky Way. Andromeda is visible to the unaided...
![NGC 206 и звездные облака Андромеды](https://images.astronet.ru/pubd/2023/04/12/0001895591/Trottier_M31SW_APOD_Re1024.preview.jpg)
12.04.2023
The large stellar association cataloged as NGC 206 is nestled within the dusty arms of the neighboring Andromeda galaxy along with the galaxy's pinkish star-forming regions. Also known as M31, the spiral galaxy is a mere 2.5 million light-years away.
![Андромеда над пустыней Сахара](https://images.astronet.ru/pubd/2022/07/11/0001840909/SaharaAndromeda_Coy_1080.preview.jpg)
11.07.2022
What is the oldest thing you can see? At 2.5 million light years distant, the answer for the unaided eye is the Andromeda galaxy, because its photons are 2.5 million years old when they reach you.
![Ультрафиолетовая Венера](https://images.astronet.ru/pubd/2003/06/23/0001191188/venus_pvo_big.preview.jpg)
7.05.1997
The forecast for Venus is cloudy, cloudy, cloudy. Although similar to the Earth in size and mass, Venus' slightly closer orbit to the Sun create for it a much thicker atmosphere and a much hotter surface. The thick atmosphere was photographed above in ultraviolet light in 1979 by the Pioneer Venus Orbiter.
![Петли солнечных пятен в ультрафиолете](https://images.astronet.ru/pubd/2002/05/08/0001176667/sun2_trace.preview.jpg)
8.05.2002
It was a quiet day on the Sun. The above image shows, however, that even during off days the Sun's surface is a busy place. Shown in ultraviolet light, the relatively cool dark regions have temperatures of thousands of degrees Celsius.
![Петли солнечных пятен в ультрафиолете](https://images.astronet.ru/pubd/2004/10/11/0001200019/sun2_trace.preview.jpg)
10.10.2004
It was a quiet day on the Sun. The above image shows, however, that even during off days the Sun's surface is a busy place. Shown in ultraviolet light, the relatively cool dark regions have temperatures of thousands of degrees Celsius.
![Яркая спиральная галактика M81 в ультрафиолете: вид в телескоп Galex](https://images.astronet.ru/pubd/2007/05/15/0001222011/m81_galex.preview.jpg)
15.05.2007
Where are the hot stars in M81, one of the closest major spiral galaxies? To help find out, astronomers took a deep image in ultraviolet light of the sprawling spiral with the Earth-orbiting Galex telescope.
![Петли солнечных пятен в ультрафиолете](https://images.astronet.ru/pubd/2006/06/13/0001214466/sun2_trace.preview.jpg)
11.06.2006
It was a quiet day on the Sun. The above image shows, however, that even during off days the Sun's surface is a busy place. Shown in ultraviolet light, the relatively cool dark regions have temperatures of thousands of degrees Celsius.
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