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败瓜一

Epsilon Delphini
观测资料
历元 J2000.0
星座 海豚座
星官
赤经 20h 33m 12.8s
赤纬 +11° 18′ 12″
视星等(V) +4.03
特性
光谱分类B6III
U−B 色指数−0.47
B−V 色指数−0.13
变星类型suspected
天体测定
径向速度 (Rv)−19 km/s
自行 (μ) 赤经:+10.75 mas/yr
赤纬:−28.54 mas/yr
视差 (π)9.09 ± 0.81 mas
距离358 ly
(110 pc)
绝对星等 (MV)−1.18
其他命名
Deneb Dulfim, Deneb el Delphinus, 2 Delphini, HR 7852, HD 195810, SAO 106230, HIP 101421, BD +10 4321, FK5: 768, NSV 13137, TD1 26903

败瓜一(ε Del / ε Delphini)是海豚座的一颗蓝-白巨星,距地球约358光年,俗名Deneb Dulfim(有时写作Deneb 或Al Dhanab al Dulfim),来自阿拉伯语ذنب الدلفين ,意为“海豚之尾”。该恒星是一颗不明显的变星,有时星等可达3.95。

参见

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败瓜一
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