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Contains:  M 63, NGC 5055, Sunflower galaxy
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The Sunflower Galaxy (M63) in LRGB, 


            Josh Woodward
The Sunflower Galaxy (M63) in LRGB
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The Sunflower Galaxy (M63) in LRGB

Technical card

Dates:May 1, 2019May 2, 2019

ZWO L 1.25": 222x90" (gain: 76.00) -15C bin 1x1
ZWO RGB 1.25" Filters: 158x180" (gain: 76.00) -15C

Integration: 13.4 hours

Darks: ~62

Flats: ~20

Flat darks: ~25

Avg. Moon age: 26.70 days

Avg. Moon phase: 8.98%

Bortle Dark-Sky Scale: 5.00

Temperature: 10.00

Basic astrometry details job: 2684761

RA center: 13h 15' 40"

DEC center: +42° 2' 9"

Pixel scale: 0.616 arcsec/pixel

Orientation: 91.962 degrees

Field radius: 0.312 degrees

Resolution: 2887x2230

Locations: backyard, Chico, CA, United States

Data source: Backyard


Messier 63 or M63, also known as NGC 5055 or the seldom-used Sunflower Galaxy, is a spiral galaxy in the northern constellation of Canes Venatici. M63 was first discovered by the French astronomer Pierre Méchain then later verified by his colleague Charles Messier on June 14, 1779. Wikipedia
Distance to Earth: 27 million light years
Radius: 49,000 light years
Apparent mass: ~110 billion M☉
Age: 13.28 billion years
Stars: 400 billion
I'm trying to push the integration times for my exposures. This time I went with 90" for Lum and 180" for RGB. This is also, by far, the longest integration that I've attempted.

L - 222x90" = 5.55 hours
R - 53x180" = 2.65 hours
G - 55x180" = 2.75 hours
B - 51x180" = 2.55 hours



Josh Woodward
License: None (All rights reserved)

Sky plot

Sky plot


The Sunflower Galaxy (M63) in LRGB, 


            Josh Woodward

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