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NGC1909 Witchhead Nebula (Blue Channel Only), 


            Gilbert Ikezaki

NGC1909 Witchhead Nebula (Blue Channel Only)

Technical card

Resolution: 2815x1583

Dates:Nov. 29, 2016

Frames:One Shot Color: 14x960" ISO100 bin 1x1

Integration: 3.7 hours

Darks: ~32

Flats: ~8

Flat darks: ~8

Avg. Moon age: 29.51 days

Avg. Moon phase: 0.00%

Bortle Dark-Sky Scale: 3.00

Temperature: -2.00 job: 1361217

Locations: SDAA Tierra Del Sol, Boulevard, California, United States

Data source: Traveller


The blue channel gives much more detail in the nebulosity than any other channel, or even all of them combined as a RGB image. Stars removed using Zipproth GmbH Straton software.



Gilbert Ikezaki
License: Attribution-NonCommercial-ShareAlike Creative Commons


NGC1909 Witchhead Nebula (Blue Channel Only), 


            Gilbert Ikezaki