View Single Post
  #1  
Old 03-12-2009, 08:56 PM
rat156's Avatar
rat156
Registered User

rat156 is offline
 
Join Date: Aug 2005
Location: Melbourne
Posts: 1,696
NGC 2070 - Tarantula in Narrowband

Hi All,

Got some data last night for this target.

100 minutes through two different Ha filters (60 minutes 4.5nm, 40 minutes 13nm), and 60 minutes through a 13nm OIII filter.

Inspired by Bert's treatment of similar data I tried to combine the data as he did, HaOIIIOIII mapped to RGB. I also made a synthetic green channel for comparison, so that makes HasGOIII mapped to the RGB channels.

Cheers
Stuart

P.S. Just added some more Ha data. I love processing this stuff, you can do all the "wrong" things to bring out detail. In the last two I've really boosted the blue contribution to highlight the areas of OIII emission.
Attached Thumbnails
Click for full-size image (NGC2070HaOIIIOIII.jpg)
175.6 KB57 views
Click for full-size image (NGC2070HasGOIII.jpg)
184.9 KB57 views
Click for full-size image (NGC2070HasGOIII2.jpg)
186.4 KB45 views
Click for full-size image (Sum-NGC2070HaReduced-Stars.jpg)
182.6 KB57 views

Last edited by rat156; 04-12-2009 at 12:11 AM. Reason: Added more pictures
Reply With Quote