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IRS 13E

Only 3 light-years away from Sagittarius A* lies a massive black hole, which is orbited by 7 big stars. Probably these are the remains of a stellar cluster, which evolved further outside and now spirals towards the galactic center.
The 7 stars are one Wolf-Rayet star (13E2), two heavy O stars (13E4 and 13E6), another blue star (13E1) and two extreme red objects as a binary (13E3A und B), which probably are other Wolf-Rayet stars in their dusty hull. Another red star similar to this pair is 13E5.

Constellation: Sagittarius
Distance: 26 000 light-years
Mass of the Black Hole: 1300 * Sun

Back: List of Special Stars part 2 		    IRS 13E
Photo: Gemini Observatory
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