后髮座FK

后髮座FK 是一顆週期2.4天，視星等在8.14至8.33等之間變化的變星；它是后髮座FK型變星的原型。后髮座FK 的變異可能是恆星表面巨大的低溫星斑隨著恆星轉動引起的。這顆恆星被認為是聯星在最近合併的結果，導致旋轉和磁性活動率都高^[4]。

參考資料

^ ^1.0 ^1.1 ^1.2 ^1.3 ^1.4 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 Strassmeier, Klaus G., Starspots, The Astronomy and Astrophysics Review, September 2009, 17 (3): 251–308, Bibcode:2009A&ARv..17..251S, doi:10.1007/s00159-009-0020-6 .
^ Korhonen, H., Berdyugina, S. V., Hackman, T., Duemmler, R., Ilyin, I. V., & Tuominen, I. Study of FK Comae Berenices. I. Surface images for 1994 and 1995. Astronomy and Astrophysics. 1999, 346: 103. Bibcode:1999A&A...346..101K.
^ ^4.0 ^4.1 Ayres, Thomas R.; et al, FK Comae Berenices, King of Spin: The COCOA-PUFS Project, The Astrophysical Journal Supplement Series, March 2016, 223 (1): 30, Bibcode:2016ApJS..223....5A, arXiv:1601.03305 , doi:10.3847/0067-0049/223/1/5, 5.
^ FK Com. SIMBAD. 斯特拉斯堡天文資料中心.