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NGC 7047
NGC 7047
	NGC 7047 (SDSS DR14)
Observation data (J2000 epoch)
Constellation	Aquarius
Right ascension	21h 16m 27.6s
Declination	−00° 49′ 35″
Redshift	0.019383
Heliocentric radial velocity	5,811 km/s
Distance	270 Mly
Apparent magnitude (V)	14.0
Characteristics
Type	SAB(r)b, LINER
Size	~127,348 ly (estimated)
Apparent size (V)	1.38 x 0.69
Other designations
	IRAS 21138-0102, UGC 11712, MCG +00-54-010, PGC 66461, CGCG 375-023

NGC 7047 is an intermediate spiral galaxy located about 270 million light-years away in the constellation of Aquarius.^[2]^[3] NGC 7047 is also classified as a LINER-type galaxy.^[4] NGC 7047 has an estimated diameter of 127,350 light years.^[3] It was discovered by French astronomer Édouard Stephan on August 20, 1873.^[5]

One supernova has been observed in NGC 7047: PTF09cjq (type II, mag. unknown) was discovered 22 October 2009 by the Palomar Transient Factory.^[6]^[7]^[8]

References

^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ "NASA/IPAC Extragalactic Database". Results for NGC 7047. Retrieved 2017-06-29.
^ Rojas, Sebastián García. "Galaxy NGC 7047 - Galaxy in Aquarius Constellation · Deep Sky Objects Browser". DSO Browser. Retrieved 2017-06-29.
^ ^a ^b "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-06-29.
^ "NGC 7047". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-06-29.
^ "New General Catalog Objects: NGC 7000 - 7049". cseligman.com. Retrieved 2017-06-27.
^ "WISeREP page for PTF09cjq". Weizmann Interactive Supernova Data Repository. Weizmann Institute of Science. Retrieved 29 August 2024.
^ "Bright Supernovae - 2009". rochesterastronomy.org. Retrieved 2017-06-29.
^ Arcavi, Iair; Gal-Yam, Avishay (2010). "Core-Collapse Supernovae from the Palomar Transient Factory: Indications for a Different Population in Dwarf Galaxies". The Astrophysical Journal. 721 (1): 777–784. arXiv:1004.0615. Bibcode:2010ApJ...721..777A. doi:10.1088/0004-637x/721/1/777. Retrieved 28 August 2024.