a hiatus of almost a year, I wanted to do some astrophotography
again. The target is the NGC 891 galaxy in Andromeda. It is
a very nice edge-on galaxy showing the dust band in this picture.
I was not able to spot it visually using my 150mm (6 inch)
f/5 Newtonian telescope under a hazy suburban sky on our roof-top
from NGC 891, there are some background galaxies faintly visible
in this image, all of them belong to the Galaxy Cluster Abell
347, the most notable among them are: NGC 898, 906, 909 and
can move your mouse pointer over the image to see an annotated
image leaves a lot to be desired:
More exposures should reduce the noise visible as a grainy
texture (longer individual exposures would need a better
mount or an autoguiding setup)
Better focusing (more patience on my side)
A coma corrector to improve the image from my newtonian
A light pollution reduction filter like a UHC would improve
the contrast to the sky background.
Use a real flat field image.
I have also created a file to view this image in the context
of the Google Earth application NG 891.kmz