Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  The star 9Cas
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CTB1 in HOO+RGB, 



    
        

            Erik Pirtala
CTB1 in HOO+RGB
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CTB1 in HOO+RGB

Getting plate-solving status, please wait...
CTB1 in HOO+RGB, 



    
        

            Erik Pirtala
CTB1 in HOO+RGB
Powered byPixInsight

CTB1 in HOO+RGB

Technical card

Imaging telescopes or lenses: GSO 6" f/4 Imaging Newtonian Telescope

Imaging cameras: ASI1600MM-C

Mounts: SkyWatcher EQ-6 Pro, SkyWatcher EQ-6 Pro

Focal reducers: Sky-watcher f/4 Aplnatic coma corrector

Software: Sequence Generator Pro Seqence Generator Pro  ·  PixInsight, Photoshop

Filters: Astrodon OIII 3nm  ·  Astrodon E-Series Luminance Red, Green, Blue  ·  Astrodon Ha 5nm


Dates:Oct. 2, 2021Oct. 3, 2021Oct. 12, 2021Oct. 19, 2021

Frames:
Astrodon E-Series Luminance Red, Green, Blue: 30x120" (1h) (gain: 0.00) bin 1x1
Astrodon Ha 5nm: 90x360" (9h) (gain: 200.00) bin 1x1
Astrodon OIII 3nm: 50x360" (5h) (gain: 200.00) bin 1x1
Astrodon OIII 3nm: 14x600" (2h 20') (gain: 200.00) bin 1x1

Integration: 17h 20'

Avg. Moon age: 18.03 days

Avg. Moon phase: 42.76%

Bortle Dark-Sky Scale: 3.00


Basic astrometry details

Astrometry.net job: 5122241

RA center: 00h00m03s.6

DEC center: +62°2526

Pixel scale: 1.906 arcsec/pixel

Orientation: 183.823 degrees

Field radius: 0.777 degrees


Resolution: 2378x1720

Data source: Own remote observatory

Remote source: Non-commercial independent facility

Description

This extraordinary supernova remnant is located about 9700 light-years away. It is very uniquely formed, as an almost perfect sphere. What a dim target it is too! Very challenging to process. It took me a month to capture a total of 17,2 hours of exposure to it.

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Histogram

CTB1 in HOO+RGB, 



    
        

            Erik Pirtala