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View Full Version : NGC 6826 / Caldwell 15 with Ha and OIII halo



Niels
2013-Jul-28, 12:56 PM
Hi,
The raw material was taken during April, May and July 2013.

The picture consist of raw frames/subs taken with LX200ACF 16" telescope. Camera used was Atik 460ex mono.
Exposure time using Baader 1.25" filters:
Ha=42*5min,
OIII=42*5min,
Lum=28*5sec+16*60sec,
Red=66*30sec+35*2sec,
Green=72*30sec+17*2sec,
Blue=69*30sec+16*2sec.

The picture shown via the first link below is a cropped composite picture made of above mentioned narrowband/color stacks.
The halo around NGC 6826 consist of Ha and OIII information.
https://dl.dropboxusercontent.com/u/10089041/NGC6826/NGC6826-Crop-Haloupdate.jpg

More and widefield pictures of NGC 6826 can be found here:
http://www.astro-hp.dk/
http://astro-billeder.dk/index.html
Kind regards Niels

glappkaeft
2013-Aug-05, 02:39 PM
Hypnotic! A very nice capture indeed.

Niels
2013-Sep-11, 06:58 AM
thanks for comments, here is another processing attempt, where raw data from Mr. Morten la Cour is included,
https://dl.dropboxusercontent.com/u/10089041/Test1/NGC6826-LRHa-GBOIII-mlc-nvc-1000.jpg
Kind regards Niels