Hemisphere:  Southern  ·  Constellation: Monoceros (Mon)  ·  Contains:  IC 2177  ·  NGC 2335
Getting plate-solving status, please wait...
IC 2177 Region - The Seagull Nebula, 


            Min Xie

IC 2177 Region - The Seagull Nebula

Technical card

Imaging telescopes or lenses: Takahashi FSQ-106EDX III  ·  Takahashi TOA-130NS

Imaging cameras: ZWO ASI6200mm-Pro

Mounts: Astro-Physics AP1100GTO-CP3

Guiding telescopes or lenses: ZWO M68 OAG

Guiding cameras: ZWO ASI174mm-Mini

Software: Starkeeper.it Voyager Custom Array  ·  Adobe Photoshop 2020  ·  Astro Pixel Processor  ·  PixInsight 1.8 Ripley

Filters: Chroma 50mm Blue  ·  Chroma 50mm Sulphur-II 3nm  ·  Chroma 50mm Green  ·  Chroma 50mm Red  ·  Chroma 50mm Luminance  ·  Chroma 50mm O-III 3nm (Optimized for f/3.0)  ·  Chroma 50mm Ha 5nm

Accessory: ZWO EFW 2" 7 Position  ·  ADM Accessories TGAD (Tandem Guiding Aiming Device)  ·  虫子 WormCover & WormFlatPanel  ·  ADM Accessories SBS Supporting System  ·  MoonLite NiteCrawler WR35 Focuser  ·  Kingdel NC860 (i7-8550U)

Dates:March 5, 2021March 28, 2021March 30, 2021April 6, 2021April 7, 2021April 8, 2021April 9, 2021April 10, 2021

Chroma 50mm Blue: 45x180" (gain: 0.00) -10C bin 1x1
Chroma 50mm Green: 49x180" (gain: 0.00) -10C bin 1x1
Chroma 50mm Ha 5nm: 24x600" (gain: 100.00) -10C bin 1x1
Chroma 50mm Luminance: 94x180" (gain: 0.00) -10C bin 1x1
Chroma 50mm O-III 3nm (Optimized for f/3.0): 32x600" (gain: 100.00) -10C bin 1x1
Chroma 50mm Red: 54x180" (gain: 0.00) -10C bin 1x1
Chroma 50mm Sulphur-II 3nm: 18x600" (gain: 100.00) -10C bin 1x1

Integration: 24.4 hours

Darks: ~20

Flats: ~20

Bias: ~40

Avg. Moon age: 22.94 days

Avg. Moon phase: 40.12%

Bortle Dark-Sky Scale: 2.00

Mean SQM: 21.99

Temperature: 15.50

Basic astrometry details

Astrometry.net job: 4441038

RA center: 7h 5' 26"

DEC center: -10° 55' 4"

Pixel scale: 2.173 arcsec/pixel

Orientation: 13.561 degrees

Field radius: 1.173 degrees

Resolution: 2160x3231

Locations: Dark Sky New Mexico, Animas, New Mexico, United States

Data source: Own remote observatory

Remote source: Dark Sky New Mexico


IC 2177 is fairly bright. It's a great target for collecting all-channel data set. This is probably my first effort to truly blend all seven channels (Lum, Red, Green, Blue, Ha, S-II and O-III). I didn't want it to be another image dominated by red and blue colors. The brownish color of the thin dust clouds floating in this region is way more precious that I intended to protect.

LRGB color tone is the base of this image. Narrowband data is mainly used in two areas: Enhancing the presentation of the details where they should be, and fill in the colors where broadband data channels are weak to make the image more fulfilled and balanced. One example is the area "Under the wings". The blue color is quite weak there. Strong O-III signals filled in seamlessly. If you look closely, you can see the strongest part of the O-III region is actually not flat, there are some dust cloud structures right underneath it. I love it a lot.

Got to give a lot of credit to the fabulous TOA-130NS. Such a wonderful instrument. I was amazed by its power in showing the layers of the bow shock front of FN CMa (HD 53974)!

Hope you folks like it and comments are welcome!

Again, appreciation goes to my teammates TBC George, Chen Wu, and Yizhou Zhang for helping me complete the data acquisition even I was away on my Reflection Canyon hiking trip.




  • Final
    IC 2177 Region - The Seagull Nebula, 


            Min Xie
    IC 2177 Region - The Seagull Nebula, 


            Min Xie
    IC 2177 Region - The Seagull Nebula, 


            Min Xie


Description: Blended strong O-III region.

Uploaded: ...


Description:"The Head of the Seagull"

Uploaded: ...

Sky plot

Sky plot


IC 2177 Region - The Seagull Nebula, 


            Min Xie