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**天鵝座ω¹**
	; 天鵝座V2014的光變曲線，; 根據「TESS」的數據繪製
觀測資料; 曆元 J2000.0
星座	天鵝座
星官	天津（女宿）
赤經	20h 30m 03.54116s
赤緯	+48° 57′ 05.6446″
視星等（V）	+4.93 - 4.96
特性
光谱分类	B2.5 IV
U−B 色指数	−0.68
B−V 色指数	−0.09
变星类型	仙王座β （波江座λ）
天体测定
徑向速度 (Rv)	−21.9±2.0 km/s
自行 (μ)	赤经：+10.883 mas/yr ; 赤纬：+7.057 mas/yr
视差 (π)	2.5878 ± 0.1637 mas
距离	1,260 ± 80 ly ; (390 ± 20 pc)
绝对星等 (MV)	−2.65
詳細資料
質量	8.1±0.2 M☉
半徑	13.825 R☉
表面重力 (log g)	2.312
亮度	1,549 L☉
溫度	16,982 K
金属量 [Fe/H]	0.0 dex
自轉速度 (v sin i)	145 km/s
年齡	33.2±4.5 Myr
其他命名
	ω1 Cyg、45 Cygni、BD+48°3142、FK5 3641、HD 195556、HIP 101138、HR 7844、SAO 49712、V2014 Cygni
參考資料庫
SIMBAD	资料

天鵝座ω¹，來自拉丁化的ω¹ Cygni，是獨立的拜耳名稱^[14]，它是在北天星座天鵝座的一顆恆星；中文傳統名稱是天津增卅五。它的視星等為4.94^[5]，以肉眼即可看見。基於2.59mas的周年視差偏移^[8]，估計它與太陽的距離大約為7003126000000000000♠1,260 光年。相對於它的鄰居，這顆恒星的本動速度為7004257000000000000♠25.7±2.2 km/s^[7]。

這是一顆有點演化的B型次巨星，恆星分類為B2.5 IV^[4]。Telting及其同事在2006年發表的一項高解析度光譜學研究中指出，在其光譜中發現了規則的脈動，因此他們對此高度自信，它是一顆仙王座β型變星^[6]。它的亮度每1.137天不規則地變化0.034星等^[15]。

參考資料

^ MAST: Barbara A. Mikulski Archive for Space Telescopes. Space Telescope Science Institute. [27 November 2022]. （原始内容存档于2023-03-27）.
^ ^2.0 ^2.1 van Leeuwen, F., Validation of the new Hipparcos reduction, Astronomy and Astrophysics, 2007, 474 (2): 653–664, Bibcode:2007A&A...474..653V, S2CID 18759600, arXiv:0708.1752 , doi:10.1051/0004-6361:20078357.
^ ^3.0 ^3.1 V2014 Cygni, International Variable Star Index, [2020-09-02], （原始内容存档于2023-08-12）
^ ^4.0 ^4.1 ^4.2 ^4.3 Tetzlaff, N.; et al, A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun, Monthly Notices of the Royal Astronomical Society, 2011, 410 (1): 190–200, Bibcode:2011MNRAS.410..190T, S2CID 118629873, arXiv:1007.4883 , doi:10.1111/j.1365-2966.2010.17434.x.
^ ^5.0 ^5.1 ^5.2 Mermilliod, J.-C., Compilation of Eggen's UBV data, transformed to UBV (unpublished), Catalogue of Eggen's UBV Data (SIMBAD), 1986, Bibcode:1986EgUBV........0M.
^ ^6.0 ^6.1 Telting, J. H.; et al, A high-resolution spectroscopy survey of β Cephei pulsations in bright stars, Astronomy and Astrophysics, June 2006, 452 (3): 945–953, Bibcode:2006A&A...452..945T, doi:10.1051/0004-6361:20054730 .
^ ^7.0 ^7.1 Bobylev, V. V.; Bajkova, A. T., Galactic kinematics from a sample of young massive stars, Astronomy Letters, August 2013, 39 (8): 532–549, Bibcode:2013AstL...39..532B, S2CID 118568203, arXiv:1307.1677 , doi:10.1134/S106377371308001X.
^ ^8.0 ^8.1 ^8.2 ^8.3 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
^ ^9.0 ^9.1 Gontcharov, G. A., Dependence of kinematics on the age of stars in the solar neighborhood, Astronomy Letters, 2012, 38 (12): 771–782, Bibcode:2012AstL...38..771G, S2CID 118345778, arXiv:1606.08814 , doi:10.1134/S1063773712120031.
^ ^10.0 ^10.1 McDonald, I.; Zijlstra, A. A.; Watson, R. A., Fundamental parameters and infrared excesses of Tycho–Gaia stars, Monthly Notices of the Royal Astronomical Society, 2017, 471 (1): 770–791, Bibcode:2017MNRAS.471..770M, S2CID 73594365, arXiv:1706.02208 , doi:10.1093/mnras/stx1433.
^ ^11.0 ^11.1 Simón-Díaz, S.; Godart, M.; Castro, N.; Herrero, A.; Aerts, C.; Puls, J.; Telting, J.; Grassitelli, L., The IACOB project . III. New observational clues to understand macroturbulent broadening in massive O- and B-type stars, Astronomy and Astrophysics, 2017, 597: A22, Bibcode:2017A&A...597A..22S, S2CID 3478126, arXiv:1608.05508 , doi:10.1051/0004-6361/201628541.
^ Abt, Helmut A.; Levato, Hugo; Grosso, Monica, Rotational Velocities of B Stars, The Astrophysical Journal, July 2002, 573 (1): 359–365, Bibcode:2002ApJ...573..359A, doi:10.1086/340590 .
^ * ome01 Cyg -- Pulsating variable Star. SIMBAD. 斯特拉斯堡天文資料中心.
^ Eggleton, P. P.; Tokovinin, A. A., A catalogue of multiplicity among bright stellar systems, Monthly Notices of the Royal Astronomical Society, September 2008, 389 (2): 869–879, Bibcode:2008MNRAS.389..869E, S2CID 14878976, arXiv:0806.2878 , doi:10.1111/j.1365-2966.2008.13596.x.
^ Lefèvre, L.; et al, A systematic study of variability among OB-stars based on HIPPARCOS photometry, Astronomy and Astrophysics, 2009, 507 (2): 1141, Bibcode:2009A&A...507.1141L, doi:10.1051/0004-6361/200912304 .