Nebula NB picture | Niels V. Christensen

Photographer
Niels V. Christensen
Email
nvcchr@mail.dk
Location of photo
Copenhagen, Denmark
Date/Time of photo
1->2. Sep-2011
Equipment
LX200ACF 16" and SBIG ST-8XME. To get focal lenght down a Lepus 0.62x reducer was used.
Description
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.
Website
www.astro-hp.dk