stacking didn't work

I took 20 lights, 10 dark frames and 10 bias frames the flat frames didn't work out. when I tried to stack the light, dark and bias I got a message that DSS could only stack 1 shot and to turn up star detection. After turning up star detection to 98% I still get the same message. here is 1 of the light shots ISO 1600 20 sec. exposure. What am I doing wrong?

Stacking is to improve your signal to noise ratio, it allows you to push your levels in post. Its not a magic way to make stars appear from nowhere....You need some longer exposures to help capture more stars. and possibly darker skys by the looks of your image?

Thanks Mark I'll try darker skys.

Randy, I had the same problem. I had some help from a fellow here (Baz), and it really helped me.
I think you exposures were a good start, but you may have missed something in the DSS program.
If your interested I can send you the instruction Baz sent me.
Tim

j4cub wrote in post #14522377
Randy, I had the same problem. I had some help from a fellow here (Baz), and it really helped me.
I think you exposures were a good start, but you may have missed something in the DSS program.
If your interested I can send you the instruction Baz sent me.
Tim

I'm interested. Thanks

Mate, don't include foreground objects. That's probably the problem.

Here's two pages that might help -

How to take photographs of space

ASIGN Observatory II Intro to image stacking.

Baz.

Thanks Baz

LOLZ @ the backwards telescopes and lens on the asign website! Awesome link btw

calypsob wrote in post #14721960
LOLZ @ the backwards telescopes and lens on the asign website! Awesome link btw

Ta mate!

Aside from the light pollution in this image, the portion of stacking that did work seems to have done a very good job of removing the noise from the image