M63 from GALEX sky survey
|Observation data (J2000 epoch)|
|Right ascension||13h 15m 49.3s|
|Declination||+42° 01′ 45″|
|Apparent dimensions (V)||12′.6 × 7′.2|
|Apparent magnitude (V)||9.3|
|M63, NGC 5055, UGC 8334, PGC 46153|
Messier 63 (also known as M63, 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. M63 is part of the M51 Group, a group of galaxies that also includes M51 (the 'Whirlpool Galaxy').
- History 1
- Gallery 2
- References 3
- External links 4
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.
Messier 63, 24 inch telescope on Mt. Lemmon, AZ.
Messier 63 seen in infrared by the Spitzer Space Telescope.
- "NASA/IPAC Extragalactic Database". Results for NGC 5055. Retrieved 2006-10-10.
- Frommert, Hartmut & Kronberg, Christine (2002). "Messier Object 63". Retrieved Dec. 6, 2006
- K. G. Jones (1991). Messier's Nebulae and Star Clusters (2nd ed.). Cambridge: Cambridge University Press.
- "A galactic sunflower". Retrieved 8 September 2015.
- The Sunflower Galaxy on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
- Sunflower Galaxy @ SEDS Messier pages
- Sunflower Galaxy (M63) at Constellation Guide