Saturday, December 05, 2009
NGC1128 in Abell400 in Cetus
The galaxy NGC 1128 (PGC11188) in the Abell400 galaxy cluster found in the Cetus constellation contains in its galactic centre two supermassive black holes orbiting each other in a distance of 25000 ligh years. This X-Ray source is also known as 3C75. Both black holes are probably going to colide in some million years making a much bigger supermassiv black hole. NGC1128, a type "E" galaxy, has a magnitude of 14.5 mag and can be identified with amateuer astrophotographic equipment. It has an apparent dimension 30x30arcsec, making it very difficult to capture faint details.
Chandra X-Ray telescope
AstroNews.com (german language)