Hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  NGC 4627  ·  NGC 4631  ·  NGC 4656  ·  NGC 4657  ·  Whale Galaxy
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NGC4631 & NGC4656, 



    
        

            David Cheng
NGC4631 & NGC4656
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NGC4631 & NGC4656

Technical card

Imaging telescopes or lenses: Takahashi Epsilon-130D

Imaging cameras: Atik one 9.0 CCD with OAG

Mounts: SkyWatcher AZ-EQ6 GT

Software: Main Sequence Software Seqence Generator Pro

Filters: Blue  ·  Green  ·  Red  ·  Lum


Dates:March 30, 2019April 9, 2019

Frames:
Blue: 30x600"
Green: 30x600"
Lum: 50x300"
Red: 30x600"

Integration: 19.2 hours

Avg. Moon age: 14.11 days

Avg. Moon phase: 22.78%


Basic astrometry details

Astrometry.net job: 4255079

RA center: 12h 42' 56"

DEC center: +32° 23' 9"

Pixel scale: 1.779 arcsec/pixel

Orientation: 359.648 degrees

Field radius: 1.003 degrees


Resolution: 3200x2500

Locations: LiGO, Lijiang, China

Data source: Own remote observatory

Remote source: Lijiang Gemini Observatory

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NGC4631 & NGC4656, 



    
        

            David Cheng

In these public groups

China Lijiang Gemini Observatory