Jump to content


Another M31...wip


Recommended Posts

With the recent clear skies, I just had to have a go at this one.

This is 60x 90sec subs + flats and bias. I lost all the darks??? I set APT to take a set of 30 and the camera was clicking away, but...no darks on the card or on the lappy. I obviously clicked the wrong button, but I have no idea what.

I tried to take a second set the following night but the Exif chip temp of the second set was 26°C. The chip temp for the lights was 29°C :) Anyway, they made the noise worse, not better so I ditched them and kept the stack with no darks.

This is also the full frame of my Canon 1000D on a 150P. I normally crop just the centre 75% or so because I don't have a coma corrector yet. I wasn't at all sure it would fit on the frame.

I consider this a work in progress and will add to it over the autumn or at least as long as this galaxy is favourably placed.


Link to comment
Share on other sites

  • 3 weeks later...

Well I haven't had a chance to add to this image and as I now have a guided set-up with a coma corrector, I thought I would finish this off as best I could and draw a line under my unguided imaging.

I went back to the DSS tiff output and redid all the stretching using curves rather than levels. I find I can control the noise better that way. I also ran the horizontal banding noise reduction from Noel's Actions.


Link to comment
Share on other sites


This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.