格利泽908

格利泽908是一顆位於雙魚座的紅矮星,距離地球19.3光年。它是一顆天龍座BY型變星,變星編號為BR Piscium。由於星斑和不同的色球活動,它的視星等在8.93和9.03之間變化。

Gliese 908

格利泽908的可見光變曲線[1]
觀測資料
曆元 J2000
星座 雙魚座
星官
赤經 23h 49m 12.52790s[2]
赤緯 02° 24 04.4072[2]
視星等(V) 8.93 - 9.03[3]
特性
光谱分类M1V Fe-1[4]
变星类型BY Dra[3]
天体测定
徑向速度 (Rv)−71.79[5] km/s
自行 (μ) 赤经:992.665[5] mas/yr
赤纬:−968.648[5] mas/yr
视差 (π)169.2163 ± 0.0281[6] mas
距离19.275 ± 0.003 ly
(5.9096 ± 0.0010 pc)
绝对星等 (MV)+10.1[7]
詳細資料
質量0.37[8] M
半徑0.39[9] R
表面重力 (log g)4.86[9]
亮度 (bolometric)0.022[9] L
溫度3,570[9] K
金属量 [Fe/H]−0.51±0.05[10] dex
自轉速度 (v sin i)2.25[11] km/s
其他命名
BR Piscium、​BD+01°4774、​GJ 908[12]、​HIP 117473[2]、​SAO 128397、​PPM 174453、​G 29-68、​G 31-6、​LHS 550[13]、​LTT 17014、​PLX 5763[14]、​TYC 586-610-1[15]、​GSC 00586-00610、​IRAS 23466+0207、​2MASS J23491255+0224037
參考資料庫
SIMBAD资料
Gliese 908 is located in the constellation Pisces
Gliese 908 is located in the constellation Pisces
Gliese 908
格利泽908在雙魚座的位置

格利泽908的可變性在1994年得到確認,儘管其亮度變化沒有檢測到週期性。[16]1997年進入變星總表。[17]

格利泽908是一顆主序星,光譜等級為M1V Fe-1。後綴表示明顯缺乏重元素。[4]

參考

  1. . ASAS-SN Variable Stars Database. ASAS-SN. [6 January 2022]. (原始内容存档于2023-01-11).
  2. Perryman; et al. . The Hipparcos and Tycho Catalogues. 1997 [2023-03-21]. (原始内容存档于2016-03-04).
  3. Samus, N. N.; Durlevich, O. V.; et al. . VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S. 2009, 1: B/gcvs. Bibcode:2009yCat....102025S.
  4. Keenan, Philip C.; McNeil, Raymond C. . The Astrophysical Journal Supplement Series. 1989, 71: 245. Bibcode:1989ApJS...71..245K. doi:10.1086/191373.
  5. Brown, A. G. A.; Vallenari, A.; Prusti, T.; de Bruijne, J. H. J.; et al. . Astronomy & Astrophysics. 2018. Bibcode:2018A&A...616A...1G. arXiv:1804.09365可免费查阅. doi:10.1051/0004-6361/201833051. VizieR中此天体在盖亚望远镜第二批数据发布的记录
  6. Brown, A. G. A.; et al. . Astronomy & Astrophysics. 2021, 649: A1. Bibcode:2021A&A...649A...1G. S2CID 227254300. arXiv:2012.01533可免费查阅. doi:10.1051/0004-6361/202039657可免费查阅. 已忽略未知参数|collaboration= (帮助) (勘误: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
  7. Boro Saikia, S.; et al, , Astronomy and Astrophysics, 2018, 616: A108, Bibcode:2018A&A...616A.108B, S2CID 118915212, arXiv:1803.11123可免费查阅, doi:10.1051/0004-6361/201629518.
  8. Perger, M.; García-Piquer, A.; Ribas, I.; Morales, J. C.; Affer, L.; Micela, G.; Damasso, M.; Suárez-Mascareño, A.; González-Hernández, J. I.; Rebolo, R.; Herrero, E.; Rosich, A.; Lafarga, M.; Bignamini, A.; Sozzetti, A.; Claudi, R.; Cosentino, R.; Molinari, E.; Maldonado, J.; Maggio, A.; Lanza, A. F.; Poretti, E.; Pagano, I.; Desidera, S.; Gratton, R.; Piotto, G.; Bonomo, A. S.; Martinez Fiorenzano, A. F.; Giacobbe, P.; et al. . Astronomy and Astrophysics. 2017, 598: A26. Bibcode:2017A&A...598A..26P. S2CID 56341358. arXiv:1610.08698可免费查阅. doi:10.1051/0004-6361/201628985.
  9. Maldonado, J.; Affer, L.; Micela, G.; Scandariato, G.; Damasso, M.; Stelzer, B.; Barbieri, M.; Bedin, L. R.; Biazzo, K.; Bignamini, A.; Borsa, F.; Claudi, R. U.; Covino, E.; Desidera, S.; Esposito, M.; Gratton, R.; González Hernández, J. I.; Lanza, A. F.; Maggio, A.; Molinari, E.; Pagano, I.; Perger, M.; Pillitteri, I.; Piotto, G.; Poretti, E.; Prisinzano, L.; Rebolo, R.; Ribas, I.; Shkolnik, E.; et al. . Astronomy and Astrophysics. 2015, 577: A132. Bibcode:2015A&A...577A.132M. S2CID 53582613. arXiv:1503.03010可免费查阅. doi:10.1051/0004-6361/201525797.
  10. Lindgren, Sara; Heiter, Ulrike. . Astronomy and Astrophysics. 2017, 604: A97. Bibcode:2017A&A...604A..97L. S2CID 119216828. arXiv:1705.08785可免费查阅. doi:10.1051/0004-6361/201730715.
  11. Houdebine, E. R. . Monthly Notices of the Royal Astronomical Society. 2010, 407 (3): 1657–1673. Bibcode:2010MNRAS.407.1657H. doi:10.1111/j.1365-2966.2010.16827.x可免费查阅.
  12. Gliese, W.; Jahreiß, H. . Preliminary Version of the Third Catalogue of Nearby Stars. 1991 [2023-03-21]. (原始内容存档于2016-03-04).
  13. Luyten, Willem Jacob. . LHS Catalogue, 2nd Edition. 1979 [2023-03-21]. (原始内容存档于2020-09-25).
  14. Van Altena W. F.; Lee J. T.; Hoffleit E. D. . The General Catalogue of Trigonometric Stellar Parallaxes Fourth. 1995 [2023-03-21]. (原始内容存档于2016-03-04).
  15. Perryman; et al. . The Hipparcos and Tycho Catalogues. 1997 [2023-03-21]. (原始内容存档于2016-03-04).
  16. Weis, Edward W. . The Astronomical Journal. 1994, 107: 1135. Bibcode:1994AJ....107.1135W. doi:10.1086/116925.
  17. Kazarovets, E. V.; Samus, N. N. . Information Bulletin on Variable Stars. 1997, 4471: 1. Bibcode:1997IBVS.4471....1K.
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