The first ever intermediate-mass black hole has been discovered by ways of NASA's Hubble Space Telescope. There is also evidence of a cluster of blue stars orbiting the black whole.
It is located at a distance of 290,000,000 light-years on the edge of the galaxy ESO 243-49. Doubted HLX-1 (Hyper-Luminous X-ray source 1) the black hole has a mass of about 20,000 solar masses.
It als o need to be noted that according stellar evolution models these stars are quite young and could not have moved far from were they originated. This is a problem for such models since according to the same stellar evolution models can’t form stars in the gravitational environment around a large black hole.
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