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HR 753

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HR 753

HR 753 A(左)和C(右).
观测数据
历元 J2000      分点 J2000
星座 鲸鱼座
HR 753 A
赤经 02h 36m 04.89466s[1]
赤纬 +06° 53′ 12.7466″[1]
星等 (V) 5.83[2]
HR 753 B
赤经 02h 36m 15.357s[3]
赤纬 +06° 52′ 19.14″[3]
星等 (V) 11.670[4]
HR 753 C
赤经 02h 36m 04.66s[5]
赤纬 +06° 53′ 14.8″[5]
星等 (V) 16.77[5]
特性
光谱分类K3 V[2] + M7 V[6]
U−B 色指数+0.800[7]
B−V 色指数+0.972[7]
天体测定
HR 753 A
径向速度 (Rv)25.8 ± 0.1[8] km/s
自行 (μ) 赤经:1778.585±0.430[9] mas/yr
赤纬:1477.306±0.248[9] mas/yr
视差 (π)138.3400 ± 0.3177[9] mas
距离23.58 ± 0.05 ly
(7.23 ± 0.02 pc)
绝对星等 (MV)6.50[10]
HR 753 B
自行 (μ) 赤经:1801.671±0.043[11] mas/yr
赤纬:1450.487±0.038[11] mas/yr
视差 (π)138.4371 ± 0.0420[11] mas
距离23.56 ± 0.05 ly
(7.223 ± 0.002 pc)
轨道[12]
绕行周期 (P)76.107 ± 1.820 yr
半长轴 (a)17.0 ± 0.7 au
偏心率 (e)0.641 ± 0.004
倾斜角 (i)45.5 ± 2.8°
升交点黄经 (Ω)122.5 ± 3.4°
近心点 历元 (T)JD 2430414 ± 669
近心点幅角 (ω)
(primary)
133.4 ± 0.6°
半振幅 (K1)
(primary)
711.7 ± 2.2 km/s
详细资料
HR 753 A
质量0.70 ± 0.10[13] M
半径0.650 ± 0.053[2] R
表面重力 (log g)4.40 ± 0.24[14]
亮度 (bolometric)0.26[13] L
温度4777 ± 91[14] K
金属量 [Fe/H]−0.03 ± 0.09[14] dex
HR 753 B
质量0.246 ± 0.025[4] M
半径0.278 ± 0.010[4] R
温度3284 ± 60[4] K
其他命名
268 G. Cet, Gl 105, CCDM J02361+0653, BD+06° 398
参考数据库
SIMBADGl 105
Gl 105 A
Gl 105 B
Gl 105 C
Gliese 105 is located in the constellation Cetus.
Gliese 105 is located in the constellation Cetus.
Gliese 105
HR 753在鲸鱼座的位置

HD 16160,又名BD+06 398SAO 110636HR 753,是一颗位于鲸鱼座的恒星,视星等为5.82,位于银经163.39,银纬-47.62,其B1900.0坐标为赤经2h 30m 35.7s,赤纬+6° -47.62′ 35″。

参考文献

[编辑]
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