NGC 7448
Apparent magnitude (V) | 11.4 |
---|---|
Characteristics | |
Type | SA(rs)bc [1] |
Apparent size (V) | 2.7′ × 1.2′[1] |
Other designations | |
UGC 12294, Arp 13, MCG +03-58-018, PGC 70213[1] |
NGC 7448 is a
NGC 7448 features an inner disk region of tightly wound spiral fragments with high surface brightness. At the edge of this region the surface brightness decreases abruptly. At the outer part of the disk individual arm segments and dust lanes can be discerned. The outer arms feature
Three supernovae have been observed in NGC 7448: SN 1980L (mag. 13.5),[5] SN 1997dt (type Ia, mag. 15.3),[6] and SN 2022wsp (type II, mag. 15.8).[7]
NGC 7448 belongs to a galaxy group known as the NGC 7448 group. Other members of the group are the galaxies NGC 7437, NGC 7454, NGC 7463, NGC 7464, and NGC 7465.[8] The last three form a compact subgroup and there is evidence that NGC 7464 and NGC 7465 are in the process of merging. NGC 7479 lies a bit further to the south, and may be part of the group. There is a tail of HI gas extending from NGC 7448 and a stream of gas extending from NGC 7464/65 to NGC 7448.[9]
References
- ^ a b c d e f g h "NASA/IPAC Extragalactic Database". Results for NGC 7448. Retrieved 2016-01-18.
- ^ Seligman, Courtney. "NGC 7448 (= Arp 13 = PGC 70213)". Celestial Atlas. Retrieved 19 November 2018.
- ^ Sandage, A., Bedke, J. (1994), The Carnegie Atlas of Galaxies. Volume I, Carnegie Institution of Washington
- ^ Takase, B. and Miyauchi-Isobe, N. (1985). "Kiso Survey for Ultraviolet-excess Galaxies. II". Annals of the Tokyo Ast. Obs. 20 (237–281).
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: CS1 maint: multiple names: authors list (link) - ^ Transient Name Server entry for SN 1980L. Retrieved 24 March 2023.
- ^ Transient Name Server entry for SN 1997dt. Retrieved 24 March 2023.
- ^ Transient Name Server entry for SN 2022wsp Retrieved 29 December 2022.
- S2CID 119194025. Archived from the originalon 31 January 2016. Retrieved 2 December 2018.
- .
External links
- Media related to NGC 7448 at Wikimedia Commons
- NGC 7448 on