Hemisphere:  Southern  ·  Constellation: Monoceros (Mon)  ·  Contains:  IC 2177  ·  IC2177  ·  PK223-02.1  ·  Sh2-292  ·  VdB91
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Head of the Seagull / Gum 1 / RCW 2 #1, 



    
        

            Molly Wakeling
Powered byPixInsight

Head of the Seagull / Gum 1 / RCW 2 #1

Getting plate-solving status, please wait...
Head of the Seagull / Gum 1 / RCW 2 #1, 



    
        

            Molly Wakeling
Powered byPixInsight

Head of the Seagull / Gum 1 / RCW 2 #1

Imaging telescopes or lenses: Celestron Nexstar 8SE SCT

Imaging cameras: ZWO ASI1600MM Pro

Mounts: Software Bisque Paramount MyT

Guiding telescopes or lenses: Celestron Nexstar 8SE SCT

Guiding cameras: QHYCCD QHY5L II Mono

Focal reducers: Meade f/6.3 focal reducer/field flattener

Software: Seqence Generator Pro  ·  PixInsight

Filters: Astronomik CLS-CCD 2"  ·  Chroma OIII 3nm  ·  Chroma Ha 3nm  ·  Astronomik Blue 2-inch Type 2c  ·  Astronomik Green 2-inch Type 2c  ·  Astronomik Red 2-inch Type 2c

Accessory: PrimaLuceLab ESATTO 2 Robotic Microfocuser  ·  Lumicon OAG


Dates:Nov. 6, 2020Nov. 14, 2020Nov. 23, 2020Nov. 24, 2020Nov. 25, 2020Nov. 28, 2020Nov. 29, 2020Nov. 30, 2020Dec. 3, 2020Dec. 4, 2020Dec. 6, 2020Dec. 7, 2020Dec. 10, 2020Dec. 17, 2020Dec. 19, 2020Dec. 20, 2020Dec. 24, 2020Jan. 8, 2021Jan. 9, 2021Jan. 15, 2021Jan. 16, 2021Jan. 19, 2021Jan. 20, 2021Jan. 24, 2021Feb. 2, 2021Feb. 4, 2021

Frames:
Astronomik Blue 2-inch Type 2c: 45x180" (2h 15') (gain: 139.00) -20C bin 1x1
Astronomik CLS-CCD 2": 46x300" (3h 50') (gain: 139.00) -20C bin 1x1
Astronomik Green 2-inch Type 2c: 44x180" (2h 12') (gain: 139.00) -20C bin 1x1
Astronomik Red 2-inch Type 2c: 40x180" (2h) (gain: 139.00) -20C bin 1x1
Chroma Ha 3nm: 49x600" (8h 10') (gain: 139.00) -20C bin 1x1
Chroma OIII 3nm: 55x600" (9h 10') (gain: 139.00) -20C bin 1x1

Integration: 27h 37'

Darks: ~92

Flats: ~50

Avg. Moon age: 14.12 days

Avg. Moon phase: 53.92%

Bortle Dark-Sky Scale: 7.00


Astrometry.net job: 4294559

RA center: 7h 4' 19"

DEC center: -10° 29' 5"

Pixel scale: 0.696 arcsec/pixel

Orientation: 176.837 degrees

Field radius: 0.388 degrees


Resolution: 3294x2302

Locations: East Bay Area, CA, Berkeley, CA, United States

Data source: Backyard

Description

Recently, I shared an image I took of the Seagull Nebula with a wide-field camera lens. Now I've zoomed in on the seagull's head, a region named RCW 2, or Gum 1! The nebula is located in the constellation Monoceros, which is east of Orion.

The whole Seagull Nebula is an HII region, or a giant cloud of hydrogen gas where stars are frequently born. Here in this portion of the nebula, there is also a dense lane of light-absorbing molecular dust -- a dark nebula. The star in the center, HD 53367, is probably what is shaping and energizing the gas in the region.

It took me a few attempts to combine my luminance, color, and narrowband data in a way that I liked -- I finally wound up enhancing the RGB data with the Ha and OIII (although there is very little OIII here), enhancing the luminance with Ha, and then adjusting the settings in PixInsight's LRGBCombination process to yield a better result than its default settings. But overall, considering how much light pollution I'm shooting through, not too shabby!

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Head of the Seagull / Gum 1 / RCW 2 #1, 



    
        

            Molly Wakeling

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