#1  
Old 18-04-2018, 01:18 AM
Joshua Bunn's Avatar
Joshua Bunn (Joshua)
Registered User

Joshua Bunn is offline
 
Join Date: Oct 2011
Location: Albany, Western Australia
Posts: 1,093
green halos

Hi There,

I have these nasty green halos around bright stars. They primarily show in the green channel (hence why they are green) but do not see them in the luminance subs or red or blue much at all.

Does anyone have any ideas how i can eliminate these before the processing stage? I'm using custom scientific filters in an SBIG STL11K.

An online calculator says they are 3.75mm from the CCD, this would suggest the cover glass I'm guessing, but why only in the green subs?

thanks
Josh
Attached Thumbnails
Click for full-size image (green.jpg)
48.0 KB32 views
Reply With Quote
Reply

Bookmarks

Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 03:21 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Advertisement
OzScopes Authorised Dealer
Advertisement
Meade Australia
Advertisement
Bintel
Advertisement
Celestron Australia
Advertisement
SkyWatcher Australia
Advertisement
NexDome Observatories
Advertisement
Lunatico Astronomical
Advertisement
Astronomy and Electronics Centre
Advertisement