The Seagull nebula got its name from resembling a gull in flight. IC 2177 is a region of nebulosity at the border of the constellation Monoceros and Canis Major.

It is a relatively bright nebula and measures nearly 240 ly across.

Two open star clusters are also visible in the image, NGC 2335 (top) + NGC 2343 (left of center).

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Image data

Object info
Name IC2177 – The Seagull Nebula
Type Emission nebula
Constellation Monoceros
Right ascension 07h 04m 25s
Declination -10° 27′ 18″
Distance 3.800 ly
Other designations Sh2-292, Gum 1
Image info
Image date Jan. 26, 2017
Light frames 8x 5 min. G&B (each) unbinned, 15x 10 min. 7nm Ha unbinned (R & Luminance)
Total integration 3h 50m
Dark frames 20x
Flat frames 20x p. filter unbinned, created with an A3 size Posterpoweruk flatfield panel
Bias frames 20x
Software used SGPro, PHD2 Guiding, DeepSkyStacker, Registar, Photoshop CS6
Processing Focusing and image acquisition was done using Sequence Generator Pro.
All separate frames were calibrated, aligned and stacked in DeepSkyStacker.
Images were aligned in Registar prior to combining into RGB.
Photoshop CS6 was used for further processing – curves adjustment, levels adjustment, etc.
Noel Carboni’s toolset was used as well (Local Contrast Enhancement, Deep Space Noise Reduction)
Equipment info
Telescope TMB/LOMO 80/480
Corrector Televue 2″ TRF 2008 flattener/reducer (FL: 384mm f/4.8)
Mount Losmandy G-11 Gemini
Camera SBIG ST-8300M
Guide camera Astrolumina ALccd5-II (Mono)
Guide scope Starwave 50mm f/4.1 Guide Scope
Autoguide software PHD2 Guiding
Filters Baader 2″ 7nm Ha, Baader 2″ RGB + IDAS LPS-P2
Location Landgraaf, The Netherlands
Image comments

Reasonably good conditions. Object is rather low in the sky and somewhat obstructed from my site.