Jump to content


trail ?


Recommended Posts

From several guided images of a moonwashed Orion nebula (sorry for another 'M42' pic people), but I managed to get what I think is either a satellite trail or a meteor trail in a single sub, open to discussion.

The full image is second, from 7 x 1 minute (average) subs @ ISO 800, no darks, no flats, no bungalows :hello2: Stacked in DSS and played around in Canon DPP. Its my first proper autoguided image using the Orion StarShoot Autoguider, I would have gone for longer subs but I was just testing it out. Formed using the Orion ST-80 refractor and my Celestron C8 Schmidt Cassegrain. The C8 was the guide scope as its quite slow and the ST-80 was the imaging scope as I wanted a nice widefield shot with a Canon EOS 450D attached.




Link to comment
Share on other sites

Yup, probably a satellite

I note your stacked image still shows the track, you could just drop the sub with the track in it but the shot needn't be lost if you process it differently... you can stack several shots and as long as you use a statistical stacking algoritum it can ignore pixels in one frame that are too different from all the other frames before adding the remaining frames together... thus it will ignor satellite tracks, cosmic rays etc. (My last image was a stack of 483 subs, so no end of nasties and processing like this removed all of them)

Also I agree with others, a flat frame would bring out no end of details.

Thanks for sharing.


Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • 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.