NASA 的凌日系外行星巡天衛星 (TESS)紀錄的經典造父變星 船帆座AH的光變曲線 。
船帆座AH 是在船帆座 的一顆黃白色調單星[ 11] 。它的平均視星等 為5.70等[ 2] ,這使得必須在良好的觀測條件下,才能用裸眼隱約看到它。從它的週年視差 6991590018249910306♠ 1.217 mas [ 1] 估計,它的距離大約是2,700光年 。它正以每秒 +26公里的日心徑向速度 朝向地球移動[ 7] 。
它是顆光譜類型 為F7Ib-II的亮巨星 /超巨星 [ 12] ,年齡大約5,000萬年[ 9] ,投影轉動速度 為每秒10公里[ 10] 。它的質量為7太陽質量 [ 9] ,來自有效溫度 6,102K[ 6] 的光球 亮度是太陽 的930倍[ 8] 。
這顆經典造父變星 [ 3] 的視星等 範圍從5.50至5.89等,週期超過4.227171天[ 12] 。它的第一泛音脈動有6.04天的基本週期[ 2] 。
^ 1.0 1.1 1.2 1.3 1.4 1.5 Brown, A. G. A.; Vallenari, A.; Prusti, T.; de Bruijne, J. H. J.; et al. Gaia Data Release 2. Summary of the contents and survey properties. Astronomy & Astrophysics . 2018. Bibcode:2018A&A...616A...1G . arXiv:1804.09365 . 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
^ 2.0 2.1 2.2 Evans, Nancy Remage; Bond, Howard E; Schaefer, Gail H; Mason, Brian D; Tingle, Evan; Karovska, Margarita; Pillitteri, Ignazio. Hubble Space Telescope Snapshot Survey for Resolved Companions of Galactic Cepheids. The Astronomical Journal. 2016, 151 (5): 129. Bibcode:2016AJ....151..129E . arXiv:1603.02224 . doi:10.3847/0004-6256/151/5/129 .
^ 3.0 3.1 3.2 Samus', N. N; Kazarovets, E. V; Durlevich, O. V; Kireeva, N. N; Pastukhova, E. N. General catalogue of variable stars: Version GCVS 5.1. Astronomy Reports. 2017, 61 (1): 80–88. Bibcode:2017ARep...61...80S . doi:10.1134/S1063772917010085 .
^ Houk, Nancy. Michigan catalogue of two-dimensional spectral types for the HD stars. Ann Arbor : Dept. Of Astronomy (Ann Arbor). 1978, 2 . Bibcode:1978mcts.book.....H .
^ 5.0 5.1 5.2 HD 68808 . SIMBAD . 斯特拉斯堡天文資料中心 .
^ 6.0 6.1 6.2 6.3 6.4 Luck, R. Earle. Parameters and Abundances in Luminous Stars. The Astronomical Journal. 2014, 147 (6): 137. Bibcode:2014AJ....147..137L . doi:10.1088/0004-6256/147/6/137 .
^ 7.0 7.1 de Bruijne, J. H. J.; Eilers, A.-C. Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project. Astronomy & Astrophysics. October 2012, 546 : 14. Bibcode:2012A&A...546A..61D . arXiv:1208.3048 . doi:10.1051/0004-6361/201219219 . A61.
^ 8.0 8.1 8.2 Anderson, E.; Francis, Ch. XHIP: An extended hipparcos compilation. Astronomy Letters. 2012, 38 (5): 331. Bibcode:2012AstL...38..331A . arXiv:1108.4971 . doi:10.1134/S1063773712050015 .
^ 9.0 9.1 9.2 9.3 Tetzlaff, N.; et al, A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun, Monthly Notices of the Royal Astronomical Society, January 2011, 410 (1): 190–200, Bibcode:2011MNRAS.410..190T , arXiv:1007.4883 , doi:10.1111/j.1365-2966.2010.17434.x
^ 10.0 10.1 Ammler-von Eiff, M.; Reiners, A. New measurements of rotation and differential rotation in A-F stars: are there two populations of differentially rotating stars?. Astronomy & Astrophysics. June 2012, 542 : A116. Bibcode:2012A&A...542A.116A . arXiv:1204.2459 . doi:10.1051/0004-6361/201118724 .
^ Eggleton, P. P.; Tokovinin, A. A. A catalogue of multiplicity among bright stellar systems. Monthly Notices of the Royal Astronomical Society. 2008, 389 (2): 869. Bibcode:2008MNRAS.389..869E . arXiv:0806.2878 . doi:10.1111/j.1365-2966.2008.13596.x .
^ 12.0 12.1 Watson, Christopher. AH Velorum . AAVSO Website. American Association of Variable Star Observers . 4 January 2010 [12 March 2014] . (原始内容存档 于2020-08-10).