View Single Post
  #12  
Old 30-04-2019, 09:27 AM
billdan's Avatar
billdan (Bill)
Registered User

billdan is offline
 
Join Date: Mar 2012
Location: Narangba, SE QLD
Posts: 1,551
The main reason to do it is to map RGB stars over the top of the Ha or OIII nebulosity. You delete all the stars in the Ha or OIII image and remap or layer in the RGB stars.
Reply With Quote