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Brunnalm, 18. August 2007, 23:00
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The Andromeda Galaxy (M31 or NGC 224) is a spiral galaxy approximatly 2.5 million light-years away in the constellation Andromeda. It is the nearest spiral galaxy to our own and is approaching our Milky Way at about 120km/s, so it is one of the few blue shifted galaxies. If it is on a collision course, the impact is predicted to occur in about 3 billion years, in which case the two galaxies will likely merge to form a giant elliptical galaxy. M31 harbors a dense and compact star cluster at its very center, containing a black hole with 10^8 solar masses. |
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| | Instrument: | Pentax 75 SDHF | | | Camera: | Atik 16HR | | | Mount: | Vixen GP-DX | | | Exposure: | 12x10min L, RGB 12x3min, 6x10min H-Alpha | | | Conditions: | Mag 6.5 sky, moderate seeing | | | Image Processing: | Iris, Photoshop |
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