Hemisphere:  Northern  ·  Constellation: Camelopardalis (Cam)  ·  Contains:  IC 356
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IC 356 - the "other" hidden galaxy, 



    
        

            wimvb
IC 356 - the "other" hidden galaxy
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IC 356 - the "other" hidden galaxy

Getting plate-solving status, please wait...
IC 356 - the "other" hidden galaxy, 



    
        

            wimvb
IC 356 - the "other" hidden galaxy
Powered byPixInsight

IC 356 - the "other" hidden galaxy

Technical card

Imaging telescopes or lenses: SkyWatcher Explorer MN190 DS

Imaging cameras: ZWO ASI294MM Pro

Mounts: Skywatcher AZ-EQ6 GT AZEQ6-GT

Guiding telescopes or lenses: SkyWatcher Explorer MN190 DS

Software: INDI/Ekos EKOS/Kstars  ·  PixInsight 1.8 Ripley

Filters: Optolong 31mm Luminance  ·  Optolong 31mm Green  ·  Optolong Optlong 31 mm Red  ·  Optolong 31mm Blue


Dates:Dec. 23, 2020

Frames:
Optolong Optlong 31 mm Red: 40x150" bin 1x1
Optolong 31mm Blue: 40x150" bin 1x1
Optolong 31mm Green: 40x150" bin 1x1
Optolong 31mm Luminance: 115x90" (gain: 120.00) -20C bin 1x1

Integration: 7.9 hours

Avg. Moon age: 8.72 days

Avg. Moon phase: 64.08%


Basic astrometry details

Astrometry.net job: 4116324

RA center: 4h 8' 6"

DEC center: +69° 48' 46"

Pixel scale: 0.954 arcsec/pixel

Orientation: 359.527 degrees

Field radius: 0.632 degrees


Resolution: 3917x2723

Locations: Holland Hill Observatory, Vallentuna, Stockholm, Sweden

Data source: Backyard

Description

IC 365, also known as Arp 213, is a spiral galaxy in the vicinity of the better known "hidden" galaxy IC 342. It is located in the constellation Camelopardalis (the Camel). The galaxy appears red in colour, because, like IC 342, it is situated behind the dust of the Milky Way, at a distance of approximately 50 Mly, about five times further away than IC 342. IC 356 therefore appears smaller and dimmer than it's neighbour. The spiral arms and dust lanes in IC 356 are very faint, and took some experimenting during processing.

Most of the data was collected during gaps in the clouds in late december, with the moon all to bright. I had to toss all the data of a second night because of moon light and thin high clouds. All processing was done in PixInsight.

This image was difficult to flatten, as my Green and Blue filters suffer from internal reflections. I have now turned the filters around, and test flats seem ok.

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Sky plot

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Histogram

IC 356 - the "other" hidden galaxy, 



    
        

            wimvb