Cookie consent

AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.

I agree
Contains:  Sunflower galaxy, M 63, NGC 5055
Getting plate-solving status, please wait...
M63: The Sunflower in Canes Venatici, 


            Robert Churan
M63: The Sunflower in Canes Venatici

M63: The Sunflower in Canes Venatici

Technical card

Resolution: 4900x3100

ZWO Blue 1.25": 50x256"
ZWO Green 1.25": 50x256"
ZWO Luminance 1.25": 150x256"
ZWO Red 1.25": 50x256"

Integration: 21.3 hours

Darks: ~50

Flats: ~50

Bias: ~50 job: 2650016

RA center: 198.957 degrees

DEC center: 42.031 degrees

Pixel scale: 0.380 arcsec/pixel

Orientation: 359.147 degrees

Field radius: 0.306 degrees

Data source: Backyard


This is a small spiral galaxy 27 million light years away in the constellation Canes Venatici, where it resides in the sky as a member of the M51 group. This object is noted for having no bar structure and broken detail in 2 loose and flocculent spiral arms.

This is an active galaxy with a bright central nucleus. It is currently unknown whether this galaxy has a super massive black hole at the core, but if it does, the black hole is estimated to have a mass of (8.5±1.9)×10^8 M☉.

Though the flocculent arms only span 49,000 light years, this galaxy holds a prominent stellar halo extending out to 130,000 light years.

This object was very fun to capture. It had its troubles: imaging over four nights and through a nearly full moon, capturing bright and faint detail all in one, and getting 21.34 hours of LRGB data to cooperate. However, it was definitely worth it for a product that, despite many, many hours of frustration, I'm happy to share in the end.



Robert Churan
License: None (All rights reserved)

Sky plot

Sky plot


M63: The Sunflower in Canes Venatici, 


            Robert Churan