View Single Post
  #1  
Old 31-05-2016, 03:15 PM
Stonius's Avatar
Stonius (Markus)
Registered User

Stonius is offline
 
Join Date: Mar 2015
Location: Melbourne
Posts: 1,508
Mars and Saturn done the wrong way

This is Mars and Saturn from last night. First photos through my new scope.

I'm aware that they're not amazing by other people's standards, but I'm quite happy, considering my gear is pretty much the wrong setup for planetary photography.

It's a 'push-to' dob, so it doesn't track. I have the wrong camera (Full Frame DSLR instead of small sensor webcam or astro camera) and I'm using the wrong method (EP projection instead of barlow).

One of the big problems is the fact that you get pretty bad chromatic aberration at the edge of frame, as well as geometric distortion where the planet becomes all egg shaped. You can really only use the bits where the planet tracks through the centre of the field, which requires a lot of patience with readjusting the Dob. So I just took a lot of videos and cut together all the bits where the planet crossed the centre of frame.

It was a bit of a PITA, but in the end it worked surprisingly well, I thought.
http://markusstone.com/hosted_files/...d%20Saturn.jpg
Pic is hosted here

-Markus
Attached Thumbnails
Click for full-size image (Mars and Saturn.jpg)
22.2 KB133 views

Last edited by Stonius; 01-06-2016 at 05:25 PM.
Reply With Quote