Elephant's Trunk Nebula - IC1396

INFO
IC 1396 spans hundreds of light years at distance of about 3000 light years in constellation Cepheus. The famous formation of glowing gases, the "Elephant's Trunk Nebula" can be seen at four o'clock position. This is an active star formation region and it has several massive young stars inside it, coursing the ionization of elements of this emission nebula.

Technical details Processing workflow Image acquisition, MaxiDL v5.07. Stacked and calibrated in CCDStack2. Deconvolution with a CCDStack2 Positive Constraint, 33 iterations, added at 50% weight Color combine in PS CS3 Levels and curves in PS CS3. Imaging optics Tokina AT-x f2.8 camera lens Mount 10-micron 1000 Cameras and filters Imaging camera Apogee Alta U16 and Apogee seven slot filter wheel Guider camera, Lodestar x 2 and an old spotting scope of Meade LX200
Astrodon filters,

Total exposure time for all of the four panels

5nm H-alpha 3nm S-II and 3nm O-III
H-alpha, 12 x 600 s, binned 1x1 = 2 h
O-III, 6x 600 s, binned 4x4 = 1 h.
S-II, 3 x 600 s. binned 4x4 = 0,5 h

Copyright: J-P Mets̈avainio