格利澤1005是一個位於鯨魚座兩顆紅矮星組成的恆星系統,距離地球19.6光年。[7]主星是M4V級星,而伴星是M7V級星。

GJ 1005
觀測資料
曆元 J2000
星座 鯨魚座
星官
赤經 00h 15m 28.11090s[1]
赤緯 -16° 08′ 01.6303″[1]
視星等(V) 11.483[2]
特性
光譜分類M3.5V[3]
天體測定
徑向速度 (Rv)-26.43 ± 0.1[4] km/s
自行 (μ) 赤經:731.83[1] mas/yr
赤緯:-607.73[1] mas/yr
視差 (π)166.6 ± 0.3[3] mas
距離19.58 ± 0.04 ly
(6.00 ± 0.01 pc)
絕對星等 (MV)12.70 ± 0.01 / 15.12 ± 0.09[3]
軌道[3]
繞行週期 (P)4.55726+0.00075
−0.00074
y.[5]
半長軸 (a)0.3037 ± 0.0005"
偏心率 (e)0.36136+0.00097
−0.00098
[5]
傾斜角 (i)143.93+0.25
−0.24
[5]°
升交點黃經 (Ω)62.8 ± 0.4°
近心點 曆元 (T)JD 2449850.4 ± 0.8
近心點幅角 (ω)
(secondary)
166.6 ± 0.5°
詳細資料 [3]
GJ 1005 A
質量0.179 ± 0.002 M
溫度3341+224
[6] K
金屬量 [Fe/H]-0.41[5] dex
GJ 1005 B
質量0.112 ± 0.001 M
其他命名
HIP 1242、​G 158-50、​G 266-76、​LHS 1047、​LP 764-87、​LTT 114、​2MASS J00152799-1608008
參考資料庫
SIMBAD資料
ARICNSA
B
GJ 1005 is located in the constellation Cetus.
GJ 1005 is located in the constellation Cetus.
GJ 1005
格利澤1005在鯨魚座的位置

該系統在1990年代被哈勃太空望遠鏡觀測到。[7]

參考

編輯
  1. ^ 1.0 1.1 1.2 1.3 van Leeuwen, F.; et al. Validation of the new Hipparcos reduction. Astronomy and Astrophysics. 2007, 474 (2): 653–664 [2023-03-21]. Bibcode:2007A&A...474..653V. S2CID 18759600. arXiv:0708.1752 . doi:10.1051/0004-6361:20078357. (原始內容存檔於2019-12-07). 
  2. ^ Koen, C.; Kilkenny, D.; van Wyk, F.; Marang, F. UBV(RI)C JHK observations of Hipparcos-selected nearby stars. Monthly Notices of the Royal Astronomical Society. 2010, 403 (4): 1949–1968. Bibcode:2010MNRAS.403.1949K. doi:10.1111/j.1365-2966.2009.16182.x . 
  3. ^ 3.0 3.1 3.2 3.3 3.4 Benedict, G. F.; Henry, T. J.; Franz, O. G.; McArthur, B. E.; Wasserman, L. H.; Jao, Wei-Chun; Cargile, P. A.; Dieterich, S. B.; Bradley, A. J.; Nelan, E. P.; Whipple, A. L. The Solar Neighborhood. XXXVII. The Mass–Luminosity Relation for Main-Sequence M Dwarfs. The Astronomical Journal. 2016, 152 (5): 141. Bibcode:2016AJ....152..141B. S2CID 54029447. arXiv:1608.04775 . doi:10.3847/0004-6256/152/5/141. 
  4. ^ Nidever, David L.; et al. Radial Velocities for 889 Late-Type Stars. The Astrophysical Journal Supplement Series. 2013, 141 (2): 503–522. Bibcode:2002ApJS..141..503N. S2CID 51814894. arXiv:astro-ph/0112477 . doi:10.1086/340570. 
  5. ^ 5.0 5.1 5.2 5.3 Mann, Andrew W.; Dupuy, Trent; Kraus, Adam L.; Gaidos, Eric; Ansdell, Megan; Ireland, Michael; Rizzuto, Aaron C.; Hung, Chao-Ling; Dittmann, Jason; Factor, Samuel; Feiden, Gregory; Martinez, Raquel A.; Ruíz-Rodríguez, Dary; Chia Thao, Pa, How to Constrain Your M Dwarf. II. The Mass–Luminosity–Metallicity Relation from 0.075 to 0.70 Solar Masses, The Astrophysical Journal, 2019, 871 (1): 63, Bibcode:2019ApJ...871...63M, S2CID 119372932, arXiv:1811.06938 , doi:10.3847/1538-4357/aaf3bc 
  6. ^ Costa-Almeida, Ellen; De Mello, Gustavo F Porto; Giribaldi, Riano E.; Lorenzo-Oliveira, Diego; Ubaldo-Melo, Maria L., M dwarf spectral indices at moderate resolution: Accurate Teff and [Fe/H] for 178 southern stars, Monthly Notices of the Royal Astronomical Society, 2021, 508 (4): 5148–5162, arXiv:2110.01658 , doi:10.1093/mnras/stab2831 
  7. ^ 7.0 7.1 Hershey, John L.; Taff, L. G. Hubble Space Telescope Fine Guidance Sensor Astrometry of the Low-Mass Binary L722-22. The Astronomical Journal. 1998-01-01, 116 (3): 1440. Bibcode:1998AJ....116.1440H. ISSN 1538-3881. doi:10.1086/300516  (英語).