... M106 (aka NGC 4258) is a nearby example of the Seyfert class of activegalaxies, seen across the spectrum from radio to X-rays. ... Energetic activegalaxies are powered by matter falling into a massive central black hole . ...
... About 72 million light-years away in the constellation Pegasus , NGC 7742 is known to be a Seyfert galaxy - a type of active spiral galaxy with a center or nucleus which is very bright at visible wavelengths . ...
... About 72 million light-years away in the constellation Pegasus, NGC 7742 is known to be a Seyfert galaxy - a type of active spiral galaxy with a center or nucleus which is very bright at visible wavelengths . ...
... About 72 million light-years away in the constellation Pegasus , NGC 7742 is known to be a Seyfert galaxy - a type of active spiral galaxy with a center or nucleus which is very bright at visible wavelengths . ...
... Explanation: Exploring quasars and activegalaxies in the distant universe, astronomers have come to believe that most galaxies have massive black holes at their centers. ...
... The lovely Milky Way flows through this large constellation whose celestial wonders also include the closest star to the sun, Alpha Centauri , the largest globular star cluster in our galaxy, Omega Centauri , and the closest activegalaxy, Centaurus A . ...
... The lovely Milky Way flows through this large constellation whose celestial wonders also include the closest star to the sun, Alpha Centauri , the largest globular star cluster in our galaxy, Omega Centauri , and the closest activegalaxy, Centaurus A . ...