that's a heck of a nice image Stefan!


"Stefan Lilge" wrote in message
...
A guy from Potsdam (which is the capital of the german state "Brandenburg",
which borders directly to Berlin; you leave Berlin to the southwest and
enter Potsdam at the same time) recently posted a good image of NGC 2392 in
a german astro-forum. He did it with 2 second-exposures with an
EMCCD-equipped camera. This camera goes incredibly deep with short
subexposures. See
http://www.astronomicum.de/modules.p...ewtopic&t=7620
for 50x5 seconds of M27 in the upper row and 25x10 seconds in the lower row
(the columns show different gain settings for this camera).

I wanted to try something similar with my SXV-H9 camera, as I think that
it has by far the best "conventional" CCD chip with antiblooming.
I cheated a bit though and used 10 second subexposures.

Taken from the middle of Berlin with a 10" Meade ACF at f/7.2 on a G11
mount, SXV-H9 camera, 42x10 seconds L, 17x10s R + 15x10s Ha, 28x10s G,
25x10s B.

http://ccd-astronomy.de/temp3/2392colourgut.jpg

Stefan