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HR 753

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HR 753

HR 753 A(左)和C(右).
觀測數據
曆元 J2000      分點 J2000
星座 鯨魚座
HR 753 A
赤經 02h 36m 04.89466s[1]
赤緯 +06° 53′ 12.7466″[1]
星等 (V) 5.83[2]
HR 753 B
赤經 02h 36m 15.357s[3]
赤緯 +06° 52′ 19.14″[3]
星等 (V) 11.670[4]
HR 753 C
赤經 02h 36m 04.66s[5]
赤緯 +06° 53′ 14.8″[5]
星等 (V) 16.77[5]
特性
光譜分類K3 V[2] + M7 V[6]
U−B 色指數+0.800[7]
B−V 色指數+0.972[7]
天體測定
HR 753 A
徑向速度 (Rv)25.8 ± 0.1[8] km/s
自行 (μ) 赤經：1778.585±0.430[9] mas/yr
赤緯：1477.306±0.248[9] mas/yr
視差 (π)138.3400 ± 0.3177[9] mas
距離23.58 ± 0.05 ly
(7.23 ± 0.02 pc)
絕對星等 (MV)6.50[10]
HR 753 B
自行 (μ) 赤經：1801.671±0.043[11] mas/yr
赤緯：1450.487±0.038[11] mas/yr
視差 (π)138.4371 ± 0.0420[11] mas
距離23.56 ± 0.05 ly
(7.223 ± 0.002 pc)
軌道[12]
繞行週期 (P)76.107 ± 1.820 yr
半長軸 (a)17.0 ± 0.7 au
偏心率 (e)0.641 ± 0.004
傾斜角 (i)45.5 ± 2.8°
升交點黃經 (Ω)122.5 ± 3.4°
近心點 曆元 (T)JD 2430414 ± 669
近心點幅角 (ω)
(primary)		133.4 ± 0.6°
半振幅 (K1)
(primary)		711.7 ± 2.2 km/s
詳細資料
HR 753 A
質量0.70 ± 0.10[13] M☉
半徑0.650 ± 0.053[2] R☉
表面重力 (log g)4.40 ± 0.24[14]
亮度 (bolometric)0.26[13] L☉
溫度4777 ± 91[14] K
金屬量 [Fe/H]−0.03 ± 0.09[14] dex
HR 753 B
質量0.246 ± 0.025[4] M☉
半徑0.278 ± 0.010[4] R☉
溫度3284 ± 60[4] K
其他命名
268 G. Cet, Gl 105, CCDM J02361+0653, BD+06° 398
參考資料庫
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在鯨魚座的位置

HD 16160，又名BD+06 398，SAO 110636、HR 753，是一顆位於鯨魚座的恆星，視星等為5.82，位於銀經163.39，銀緯-47.62，其B1900.0坐標為赤經2h 30m 35.7s，赤緯+6° -47.62′ 35″。

參考文獻

[編輯]
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