瓠瓜二

海豚座γ²
觀測資料
曆元 J2000.0
星座 海豚座[1][2]
星官 瓠瓜 (女宿)
赤經 20h 46m 39.5s[1][2]
赤緯 +16° 7′ 27.4″[1][2]
視星等（V） 4.27[1][2]
特性
光谱分类K1IV[1][2]
U−B 色指数0.97[1][2]
B−V 色指数1.04[1][2]
R−I 色指数0.48[1][2]
天体测定
徑向速度 (Rv)-6.15 km/s
自行 (μ) 赤经：-24.17 mas/yr
赤纬：-199.96 mas/yr
视差 (π)25.82 ± 1.32 mas
距离126 ± 6 ly
(39 ± 2 pc)
其他命名
BD++15 4255A，SAO 106476，HD 197964，HR 7948
參考資料庫
SIMBAD资料

瓠瓜二，又名海豚座γ²,BD+15 4255A，HD 197964、SAO 106476、HR 7948，是海豚座的海豚座γ双星系统的一颗恒星[1][2]，视星等为4.27，位于銀經61.49，銀緯-16.58，其B1900.0坐标为赤經20h 46m 39.5s，赤緯+16° 07′ 27″。

参考文献

  1. ^ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 Pulsating variable Star. SIMBAD. Centre de Données astronomiques de Strasbourg. [2012-07-13]. 
  2. ^ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 VizieR Detailed Page. [2012-07-13]. 

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