Collecting  Photons

North is to the top    1600x1066

Objects:             B 169 - 171 and B 173 - 174 dark nebulae immersed in the emission of the Sh2-134 nebula.

Constellation:     Cepheus

Coordinates of field center: 22h 2m +58° 55'

Notes: I identified this subject in a wide field survey image of the area. The dark nebulae east of ic 1396 seemed really interesting and at the end I was not disappointed.
 

Telescope and camera: ASA 10', f 3.6; SBIG STL 11000.

Exposure: Luminance 23x8'; RGB 12x8''; Hα 15x16'. Almost 12 hrs total.

Date: 3 nights on 27, 28, 29-07-09.

Software used: acquisition, CCDsoft. Calibration; registration and stacking: CCDstack, Iris; processing: PixInsight, Photoshop CS. 

The Hα layer was blended on the Red and Blue channels.

Copyright © 2009 by Gimmi Ratto. (September 30, 2009)