Nebula NB picture | Niels V. Christensen

Niels V. Christensen
Location of photo
Copenhagen, Denmark
Date/Time of photo
1->2. Sep-2011
LX200ACF 16" and SBIG ST-8XME. To get focal lenght down a Lepus 0.62x reducer was used.
The Bubble Nebula is shown in so called 'natural colors' using narrow band filters. RAW data used for making the picture, LUM=26*1min.+5*2min. Ha=18*5min.+4*2min. OIII=18*5min. SII=5*5min. Small mix of old color data added to the shown L,80Ha20SII,100OIII,85oIII15Ha picture. CCDStack2 and Adobe Photoshop programs used and all the subs were calibrated before stack with dark, flat, Darkflat and bias frames.
All comments must follow the Sky & Telescope Terms of Use and will be moderated prior to posting. Please be civil in your comments. Sky & Telescope reserves the right to use the comments we receive, in whole or in part, and to use the commenter’s username, in any medium. See also the Terms of Use and Privacy Policy.


This site uses Akismet to reduce spam. Learn how your comment data is processed.