Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  NGC 281
NGC 281 SHO - Pacman Nebula, 



    
        

            Zheng Fu
NGC 281 SHO - Pacman Nebula
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NGC 281 SHO - Pacman Nebula

NGC 281 SHO - Pacman Nebula, 



    
        

            Zheng Fu
NGC 281 SHO - Pacman Nebula
Powered byPixInsight

NGC 281 SHO - Pacman Nebula

Technical card

Imaging telescopes or lenses: Skywatcher QUATTRO-8S

Imaging cameras: QHY695a

Mounts: iOptron CEM-60EC

Guiding telescopes or lenses: QHYCCD QHYOAG

Guiding cameras: QHYCCD5L-II-M

Focal reducers: SkyWatcherComa Corrector II Coma Corrector II

Software: PhD 2 Guiding  ·  PixInsight 1.8  ·  Sequence Generator Pro  ·  MaximDL Maxim DL Pro 5

Filters: Astrodon 1.25" 5nm SII  ·  Astrodon 1.25" 5nm OIII  ·  Astrodon 1.25" 5nm H-alpha


Dates:Nov. 4, 2017Nov. 17, 2017Dec. 7, 2017

Frames:
Astrodon 1.25" 5nm H-alpha: 37x600" -20C bin 1x1
Astrodon 1.25" 5nm OIII: 14x600" -20C bin 1x1
Astrodon 1.25" 5nm SII: 14x600" -20C bin 1x1

Integration: 10.8 hours

Darks: ~32

Flats: ~30

Flat darks: ~30

Bias: ~100

Avg. Moon age: 20.95 days

Avg. Moon phase: 60.18%


Basic astrometry details

Astrometry.net job: 1903714

RA center: 0h 52' 45"

DEC center: +56° 39' 3"

Pixel scale: 1.172 arcsec/pixel

Orientation: 94.041 degrees

Field radius: 0.521 degrees


Resolution: 2526x1971

Locations: BHL, Beijing, China

Data source: Own remote observatory

Description

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NGC 281 SHO - Pacman Nebula, 



    
        

            Zheng Fu