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Contains:  Sunflower galaxy, M 63, NGC 5055
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M63 Sunflower Galaxy NGC5055, 


            Jerry Macon
M63 Sunflower Galaxy NGC5055

M63 Sunflower Galaxy NGC5055

Technical card

Resolution: 2200x1700

Dates:Jan. 19, 2018May 4, 2018

Baader RGB 36mm: 106x100" (gain: 201.00) -20C bin 1x1
Baader RGB 36mm: 101x300" (gain: 201.00) -20C bin 1x1

Integration: 11.4 hours

Avg. Moon age: 10.56 days

Avg. Moon phase: 43.37%

Bortle Dark-Sky Scale: 4.00 job: 2079684

RA center: 13h 15' 49"

DEC center: +42° 1' 51"

Pixel scale: 1.183 arcsec/pixel

Orientation: 269.735 degrees

Field radius: 0.457

Locations: Dark Star Observatory, Taos, New Mexico, United States

Data source: Own remote observatory

Remote source: Non-commercial independent facility


Messier 63 (NGC 5055, or the Sunflower Galaxy) is a spiral galaxy in the constellation Canes Venatici consisting of a central disc surrounded by many short spiral arm segments, the galaxy form known as flocculent. M63 is part of the M51 Group, a group of galaxies that also includes M51 (the 'Whirlpool Galaxy'). M63 is an active galaxy with a LINER nucleus. The existence of a super massive black hole at the nucleus is possible.

M63 was discovered by Pierre Méchain on June 14, 1779. The galaxy was then listed by Charles Messier as object 63 in the Messier Catalogue. In the mid-19th century, Lord Rosse identified spiral structures within the galaxy, making this one of the first galaxies in which such structure was identified.

In 1971, a supernova with a magnitude of 11.8 appeared in one of the arms of M63.



Jerry Macon
License: Attribution Creative Commons

Sky plot

Sky plot


M63 Sunflower Galaxy NGC5055, 


            Jerry Macon