蝎虎座1010 Lac),中国传统名称车府增十一,是蝎虎座的一颗恒星[1][2],视星等为4.88,位于银经96.65,银纬-16.98。蝎虎座10距离地球约700秒差距(2,300光年),是蝎虎座OB1(Lacerta OB1)星协的成员。蝎虎座10是高温且大质量的O型主序星,光谱型O9V。它可能是仙王座β型变星

蝎虎座10
蝎虎座10在天球上的位置(红圈内)
观测资料
历元 J2000.0
星座 蝎虎座[1][2]
星官 车府
赤经 22h 39m 15.67864s[3]
赤纬 +39° 03′ 00.9712″[3]
视星等(V) 4.880[4]
特性
光谱分类O9V[5]
U−B 色指数−1.010[4]
B−V 色指数−0.210[4]
变星类型仙王座β型变星[6]
天体测定
径向速度 (Rv)−10.10[7] km/s
自行 (μ) 赤经:−0.32[3] mas/yr
赤纬:−5.46[3] mas/yr
视差 (π)1.89 ± 0.22[3] mas
距离715[8] pc
绝对星等 (MV)−4.40[9]
详细资料 [9]
质量26.9 M
半径8.27 R
表面重力 (log g)4.03
亮度102,000 L
温度36,000 K
自转速度 (v sin i)35 km/s
其他命名
BD+38°4826、SAO 72575、HD 214680、HR 8622、10 Lac、HIP 111841, NSV 25932, WDS J22393+3903
参考资料库
SIMBAD资料
Celestia中的蝎虎座10

概要

编辑

蝎虎座10是第一批被确认的O型恒星之一(与四渎增一),并且自20世纪初开始一直被视为摩根-肯那光谱分类法的分类定位点之一。具体来说,它是光谱O9V恒星的代表,是主序带上表面温度相对较低的O型恒星[10]

蝎虎座10有一个视星等8的伴星,在天球上距离约1角分[11]

参考文献

编辑
  1. ^ 1.0 1.1 Pulsating variable Star. SIMBAD. Centre de Données astronomiques de Strasbourg. [2012-07-13]. (原始内容存档于2019-07-23). 
  2. ^ 2.0 2.1 VizieR Detailed Page. [2012-07-13]. (原始内容存档于2020-08-04). 
  3. ^ 3.0 3.1 3.2 3.3 3.4 van Leeuwen, F. Validation of the new Hipparcos reduction. Astronomy and Astrophysics. November 2007, 474: 653–664. Bibcode:2007A&A...474..653V. arXiv:0708.1752 . doi:10.1051/0004-6361:20078357. 
  4. ^ 4.0 4.1 4.2 UBV photometry of stars whose positions are accurately known. VII. Astronomy and Astrophysics Supplement Series: 591–592. Bibcode:1993A&AS..100..591O. ISSN 0365-0138. 
  5. ^ Sota, A.; Maíz Apellániz, J.; Walborn, N. R.; Alfaro, E. J.; Barbá, R. H.; Morrell, N. I.; Gamen, R. C.; Arias, J. I. The Galactic O-Star Spectroscopic Survey. I. Classification System and Bright Northern Stars in the Blue-violet at R ~ 2500. The Astrophysical Journal Supplement. Bibcode:2011ApJS..193...24S. arXiv:1101.4002 . doi:10.1088/0067-0049/193/2/24. 
  6. ^ Samus, N. N.; Durlevich, O. V. VizieR Online Data Catalog: General Catalogue of Variable Stars. January 2009. Bibcode:2009yCat....102025S. 
  7. ^ Gontcharov, G. A. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system. Astronomy Letters. 2006, 32 (11): 759. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. 
  8. ^ Kaltcheva, N.; Golev, V. Improved Distances to Several Galactic OB Associations. Stellar Clusters & Associations: A RIA Workshop on Gaia. 2011: 299–303. Bibcode:2011sca..conf..299K. arXiv:1107.3758 . 
  9. ^ 9.0 9.1 Mokiem, M. R.; de Koter, A.; Puls, J.; Herrero, A.; Najarro, F.; Villamariz, M. R. Spectral analysis of early-type stars using a genetic algorithm based fitting method. Astronomy and Astrophysics. October 2005, 441 (2): 711–733. Bibcode:2005A&A...441..711M. arXiv:astro-ph/0506751 . doi:10.1051/0004-6361:20053522. 
  10. ^ Garrison, R. F. A Hierarchy of Standards for the MK Process. Astronomical Society of the Pacific. 1994, 60: 3. Bibcode:1994ASPC...60....3G. 
  11. ^ Dommanget, J.; Nys, O. Catalogue of the Components of Double and Multiple stars (CCDM). First edition.. 1994. Bibcode:1994CoORB.115.....D.