NGC 474
NGC 474 是雙魚座的一個透鏡狀星系,距離地球約1億光年。該星系以存在形成原因不明的潮汐尾而聞名[2]。
NGC 474 | |
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观测资料(J2000[1] 曆元) | |
星座 | 雙魚座[2] |
赤经 | 01h 20m 06.7s[1] |
赤纬 | +03° 24′ 58″[1] |
紅移 | 0.007755[1] |
徑向速度 | 2325 km/s ±7 km/s[1] |
距离 | ~100 Mly (~31 Mpc)[2] |
特征 | |
类型 | S0[3] |
大小 | 250,000 ly (直徑)[4] |
其他名称 | |
Arp 227, MCG 0-4-85, PGC 4801, UGC 864, ZWG 385.71[3] | |
延伸閱讀
- Turnbull, A. J.; Carter, D.; Bridges, T. J.; Thomson, R. C. (1999) Shell Formation in NGC474(页面存档备份,存于)
參考資料
- . NASA/IPAC Extragalactic Database. [2011-02-26]. (原始内容存档于2019-10-18).
- Schirmer, Mischa. . [2011-02-26]. (原始内容存档于2011-06-29).
- . The Interactive NGC Catalog Online. [2011-02-26]. (原始内容存档于2018-10-10).
- . NASA Astronomy Picture of the Day. [2018-02-07]. (原始内容存档于2018-02-06).
- . Transient Name Server. [9 February 2018]. (原始内容存档于2018-02-10).
- King, Bob. . Sky & Telescope. [2018-02-21]. (原始内容存档于2017-10-07).
外部連結
- Galaxy NGC 474: Cosmic Blender(页面存档备份,存于), NASA Astronomy Picture of the Day (8 October 2007)
- Shell Galaxies in Pisces(页面存档备份,存于), NASA Astronomy Picture of the Day (27 February 2011)
- Galaxy NGC 474: Shells and Star Streams(页面存档备份,存于), NASA Astronomy Picture of the Day (5 January 2014)
- Galaxy NGC 474: Shells and Star Streams(页面存档备份,存于), NASA Astronomy Picture of the Day (6 February 2018)
天文學目錄 | ||
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NGC天體表: | NGC 472 - NGC 473 - NGC 474 - NGC 475 - NGC 476 | |
主要星系目录: | PGC 4799 - PGC 4800 - PGC 4801 - PGC 4802 - PGC 4803 | |
乌普萨拉总目录: | UGC 862 - UGC 863 - UGC 864 - UGC 865 - UGC 866 | |
特殊星系圖集: | Arp 225 - Arp 226 - Arp 227 - Arp 228 - Arp 229 | |
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