NGC_7003 Knowpia

NGC 7003
NGC 7003
	SDSS image of NGC 7003
Observation data (J2000 epoch)
Constellation	Delphinus
Right ascension	21h 00m 42.4s
Declination	+17° 48′ 18″
Redshift	0.017692
Heliocentric radial velocity	5304 km/s
Distance	222,468,400 ly (68,209,122 pc)
Apparent magnitude (V)	13.76
Characteristics
Type	Sbc
Size	~80,832 ly
Apparent size (V)	1.1 × 0.8
Other designations
	IRAS 20584+1736, UGC 11662, MCG 3-53-8, PGC 65887, CGCG 448-27

NGC 7003 is a spiral galaxy around 220 million light-years from Earth in the constellation Delphinus.^[2]^[1] NGC 7003 has an estimated diameter of 80,800 light-years.^[1] The galaxy was discovered by German astronomer Heinrich Louis d'Arrest on August 26, 1864.^[3] There also has been at least one supernova observed in NGC 7003.^[4]

On May 12, 2011, a Type II supernova designated as SN 2011dk was discovered in NGC 7003.^[5]^[6]

References edit

^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-04-16.
^ Rojas, Sebastián García. "Galaxy NGC 7003 Deep Sky Objects Browser". DSO Browser. Archived from the original on 2017-05-24. Retrieved 2017-04-15.
^ "New General Catalog Objects: NGC 7000 – 7049". cseligman.com. Retrieved 2017-04-15.
^ M. Giovannini, E. Mazzoni, G. Petroni, and M. Rossi, Borgo a Mozzano, Fabrizio Ciabattari, S. Donati (10 June 2011). "SUPERNOVA 2011dk IN NGC 7003 = PSN J21004220+1748220". SUPERNOVA 2011dk IN NGC 7003 = PSN J21004220+1748220. Retrieved 2017-06-19.{{cite web}}: CS1 maint: multiple names: authors list (link)
^ "Bright Supernovae - 2011". rochesterastronomy.org. Retrieved 2017-06-20.
^ "2011dk - The Open Supernova Catalog". sne.space. Archived from the original on 2017-10-14. Retrieved 2017-06-20.