Jump to content

Banner.jpg.b6007b69ccdf5c69bf18273ddfe023df.jpg

First light, Orion Optics CT8


Recommended Posts

Tried out my OO CT8 for the first time last night. Used a ZWO 071 Pro MC camera, but did not use a coma corrector or UV/IR filter, just to see what the raw images looked like. Not surprisingly, towards the edge of the image I could see the effects of coma, so will need to use a coma corrector if I want to use the whole of the sensor. Took 100 shots each, at 30 second exposure, of M51 and NGC4565 (with sensor cooled to -5C) to see what it could do. I did collimate the telescope before use, and took calibration frames. The best 80% of frames were stacked in DSS and then processed in Nebulosity 4. The images below are crops, but looks pretty good to me for a first outing, and not bad for just 40 mins or so of integration time for each object. I used an ASI Air Pro on a Losmandy G11 for autoguiding, dithering, etc.

 

M51 22nd March 2022.jpg

NGC4565.jpg

  • Like 4
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
 Share

×
×
  • 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.