Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  The star 9Cas
Getting plate-solving status, please wait...
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

Equipment

Imaging Telescopes Or Lenses
GSO 6" f/4 Imaging Newtonian Telescope
Imaging Cameras
ASI1600MM-C
Mounts
SkyWatcher EQ-6 Pro, SkyWatcher EQ-6 Pro
Filters
Astrodon OIII 3nm · Astrodon E-Series Luminance Red, Green, Blue · Astrodon Ha 5nm
Accessories
Sky-watcher f/4 Aplnatic coma corrector
Software
Sequence Generator Pro Seqence Generator Pro · PixInsight, Photoshop

Acquisition details

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

Comments

Sky plot

Sky plot

Histogram

CTB1 in HOO+RGB, 



    
        

            Erik Pirtala