|
An NGC 253
A Sculptor Galaxy (NGC 253) from last night. Clouds and a tree derailed things a bit but ended up with 28x 5 minute subs (ISO800) using my modded Canon 40D win combination with my f9 ED100 (with .85x FF/FR) refractor. Captured in my red zone backyard using Sequence Generator Pro and processed in StarTools. Lots of wind initially which made for poor seeing and jumpy guiding (using an OAG) and the sky was particularly bright. In the end I was reasonably happy with the noisy result but always keen for advice. Colour is still an issue and will probably always be using the CLS-CCD filter, but the results I get not using it seem inferior in other ways. My only thought is do a greater number of shorter subs (3 minutes) or lower the ISO to 400 and stick to 5 minutes subs to help with noise. The 5 minute subs with the fiiter seem okay on this object though although perhaps I’m missing something?
|