Sunday, June 06, 2010
Deneb's rich neighbourhood
This is the neighbourhood of Deneb, a bright star in the Cygnus constellation best visible in the summer nights of the north hemisphere. This is a single 20 minutes unguided shot at 560mm FL and 9 mu pixels (resolution 3,2 arcsec per pixel). The spikes of the bright stars are a camera artifact produced due to the missing antiblooming gate in that astrocamera. The absence of these ABG gates noticably increases the sensitivity of the camera system.
When we observe Deneb, we see inside the arm of our Milky Way. This region is full of stars and dark nebulas (see up/left side).