IMAGE SOURCE: http://www.astr.ua.edu/keel/agn/synuclei.gif
The adjacent right image shows a Hubble Space Telescope view of the Seyfert galaxy NGC7742,
which is about 72 million light years away, in the constellation Pegasus
The central region is about 3000 light years across, and as for most Seyferts is
very bright at visible wavelengths. It is likely that this region contains a huge black hole.
Faint spiral arms surround the central region, and contain many blue star-forming regions.