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雙魚座 A

雙魚座 A
观测资料(J2000.0[1] 曆元
赤经00h 14m 46.000s[1]
赤纬+10° 48′ 47.01″[1]
距离18.4 Mly(5.64 Mpc[2]
絕對星等 (V)−11.57+0.06
−0.05
[2]
特征
质量1×107[2] M
大小145+5
−6
[2] pc
其他名称
Pisces A,[1] PSC A, GALFA-Dw1[1]
參見:星系星系列表

雙魚座 APsc A)是屬於空洞星系的一個星系。它位於本地空洞內,在雙魚座的方向上,鄰近雙魚座 B,距離地球1,840萬光年(564萬秒差距[2]。這個星系是WIYN Observatory英语WIYN Observatory發現的。大約在1億年前,這個星系開始從空洞向外移動,並且進入本地細絲區和稠密的氣態環境。這引發了恆星形成率的倍增[3]

參考資料

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  1. ^ 1.0 1.1 1.2 1.3 1.4 [ [SCB2015] GALFA-Dw1] 请检查|url=值 (帮助). SIMBAD. 斯特拉斯堡天文資料中心. [21 February 2018]. 
  2. ^ 2.0 2.1 2.2 2.3 2.4 Tollerud, Erik J; Geha, Marla C; Grcevich, Jana; Putman, Mary E; Weisz, Daniel R; Dolphin, Andrew E. Hstimaging of the Local Volume Dwarf Galaxies Pisces A and B: Prototypes for Local Group Dwarfs. The Astrophysical Journal. 2016, 827 (2): 89. Bibcode:2016ApJ...827...89T. arXiv:1607.03487可免费查阅. doi:10.3847/0004-637X/827/2/89. 
  3. ^ Hubble uncovers a galaxy pair coming in from the wilderness. Science Daily. 11 August 2016 [2018-09-10]. (原始内容存档于2021-02-11). 

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雙魚座 A
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