杵一 (危宿)

**杵一（蝎虎座1）**
观测资料; 历元 J2000.0
星座	蝎虎座
星官	杵（危宿）
赤经	22h 15m 58.17673s
赤纬	+37° 44′ 55.4385″
视星等（V）	4.15
特性
光谱分类	K3II-III
U−B 色指数	+1.70
B−V 色指数	+1.43
天体测定
径向速度 (Rv)	−8.58 km/s
自行 (μ)	赤经：+8.85 mas/yr ; 赤纬：–0.72 mas/yr
视差 (π)	5.25 ± 0.23 mas
距离	620 ± 30 ly ; (190 ± 8 pc)
绝对星等 (MV)	−2.61+0.27; −0.24
详细资料
半径	51 R☉
表面重力 (log g)	1.75
温度	4,350 K
金属量 [Fe/H]	−0.12 dex
自转速度 (v sin i)	10 km/s
其他命名
	1 Lac, BD+37° 4526, HD 211388, HIP 109937, HR 8498, SAO 72191.
参考数据库
SIMBAD	资料

杵一（蝎虎座1）是在北天蝎虎座内一颗孤立的^[10]恒星。它的视星等为裸眼可见的4.15等^[2]。根据依巴谷卫星的测量，这颗恒星的距离为420光年^[1]，恒星类型为K3II-III^[3]，表明他以演化成巨星。估计它的直径是太阳的51倍^[6]，恒星大气层的有效温度是4,350K^[7]，使它成为发出橙色色调的K型星 ^[11]。

参考资料[编辑]

^ ^1.0 ^1.1 ^1.2 ^1.3 ^1.4 ^1.5 van Leeuwen, F., Validation of the new Hipparcos reduction, Astronomy and Astrophysics, 2007, 474 (2): 653–664, Bibcode:2007A&A...474..653V, arXiv:0708.1752 , doi:10.1051/0004-6361:20078357.
^ ^2.0 ^2.1 ^2.2 ^2.3 Mermilliod, J.-C., Compilation of Eggen's UBV data, transformed to UBV (unpublished), Catalogue of Eggen's UBV data (SIMBAD), 1986, Bibcode:1986EgUBV........0M.
^ ^3.0 ^3.1 Herbig, George H.; Spalding, John F., Jr., Axial Rotation and Line Broadening in Stars of Spectral Types F0-K5, Astrophysical Journal, January 1955, 121: 118, Bibcode:1955ApJ...121..118H, doi:10.1086/145969.
^ Famaey, B.; et al, Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters, Astronomy and Astrophysics, 2005, 430: 165–186, Bibcode:2005A&A...430..165F, arXiv:astro-ph/0409579 , doi:10.1051/0004-6361:20041272.
^ Carney, Bruce W.; et al, Rotation and Macroturbulence in Metal-Poor Field Red Giant and Red Horizontal Branch Stars, The Astronomical Journal, March 2008, 135 (3): 892–906, Bibcode:2008AJ....135..892C, arXiv:0711.4984 , doi:10.1088/0004-6256/135/3/892.
^ ^6.0 ^6.1 Pasinetti-Fracassini, L. E.; et al, Catalogue of Stellar Diameters (CADARS), Astronomy and Astrophysics, February 2001, 367 (2): 521–524, Bibcode:2001A&A...367..521P, arXiv:astro-ph/0012289 , doi:10.1051/0004-6361:20000451.
^ ^7.0 ^7.1 ^7.2 ^7.3 McWilliam, Andrew, High-resolution spectroscopic survey of 671 GK giants. I - Stellar atmosphere parameters and abundances, Astrophysical Journal Supplement Series, December 1990, 74: 1075–1128, Bibcode:1990ApJS...74.1075M, doi:10.1086/191527.
^ Bernacca, P. L.; Perinotto, M. A catalogue of stellar rotational velocities. Contributi Osservatorio Astronomico di Padova in Asiago. 1970, 239. Bibcode:1970CoAsi.239....1B.
^ 1 Lac -- Variable Star, SIMBAD Astronomical Database (Centre de Données astronomiques de Strasbourg), [2016-03-07], （原始内容存档于2020-11-17）.
^ 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.
^ The Colour of Stars, Australia Telescope, Outreach and Education (Commonwealth Scientific and Industrial Research Organisation), December 21, 2004 [2012-01-16], （原始内容存档于March 10, 2012）.

这是一篇与恒星相关的小作品。你可以通过编辑或修订扩充其内容。

这是一篇关于巨星的小作品。你可以通过编辑或修订扩充其内容。

[van_Leeuwen2007-1] 1.0 ^1.1 ^1.2 ^1.3 ^1.4 ^1.5 van Leeuwen, F., Validation of the new Hipparcos reduction, Astronomy and Astrophysics, 2007, 474 (2): 653–664, Bibcode:2007A&A...474..653V, arXiv:0708.1752 , doi:10.1051/0004-6361:20078357.

[MERMILLIOD-2] 2.0 ^2.1 ^2.2 ^2.3 Mermilliod, J.-C., Compilation of Eggen's UBV data, transformed to UBV (unpublished), Catalogue of Eggen's UBV data (SIMBAD), 1986, Bibcode:1986EgUBV........0M.

[apj121_118-3] 3.0 ^3.1 Herbig, George H.; Spalding, John F., Jr., Axial Rotation and Line Broadening in Stars of Spectral Types F0-K5, Astrophysical Journal, January 1955, 121: 118, Bibcode:1955ApJ...121..118H, doi:10.1086/145969.

[Famaey2005-4] Famaey, B.; et al, Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters, Astronomy and Astrophysics, 2005, 430: 165–186, Bibcode:2005A&A...430..165F, arXiv:astro-ph/0409579 , doi:10.1051/0004-6361:20041272.

[aj135_3_892-5] Carney, Bruce W.; et al, Rotation and Macroturbulence in Metal-Poor Field Red Giant and Red Horizontal Branch Stars, The Astronomical Journal, March 2008, 135 (3): 892–906, Bibcode:2008AJ....135..892C, arXiv:0711.4984 , doi:10.1088/0004-6256/135/3/892.

[CADARS-6] 6.0 ^6.1 Pasinetti-Fracassini, L. E.; et al, Catalogue of Stellar Diameters (CADARS), Astronomy and Astrophysics, February 2001, 367 (2): 521–524, Bibcode:2001A&A...367..521P, arXiv:astro-ph/0012289 , doi:10.1051/0004-6361:20000451.

[apjss74-7] 7.0 ^7.1 ^7.2 ^7.3 McWilliam, Andrew, High-resolution spectroscopic survey of 671 GK giants. I - Stellar atmosphere parameters and abundances, Astrophysical Journal Supplement Series, December 1990, 74: 1075–1128, Bibcode:1990ApJS...74.1075M, doi:10.1086/191527.

[aaa393-8] Bernacca, P. L.; Perinotto, M. A catalogue of stellar rotational velocities. Contributi Osservatorio Astronomico di Padova in Asiago. 1970, 239. Bibcode:1970CoAsi.239....1B.

[SIMBAD-9] 1 Lac -- Variable Star, SIMBAD Astronomical Database (Centre de Données astronomiques de Strasbourg), [2016-03-07], （原始内容存档于2020-11-17）.

[Eggleton2008-10] 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.

[csiro-11] The Colour of Stars, Australia Telescope, Outreach and Education (Commonwealth Scientific and Industrial Research Organisation), December 21, 2004 [2012-01-16], （原始内容存档于March 10, 2012）.

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观测资料历元 J2000.0
星座	蝎虎座
星官	杵（危宿）
赤经	22^h 15^m 58.17673^s^[1]
赤纬	+37° 44′ 55.4385″^[1]
视星等（V）	4.15^[2]
特性
光谱分类	K3II-III^[3]
U−B 色指数	+1.70^[2]
B−V 色指数	+1.43^[2]
天体测定

径向速度 (R_v)	−8.58^[4] km/s
自行 (μ)	赤经：+8.85^[1] mas/yr 赤纬：–0.72^[1] mas/yr
视差 (π)	5.25 ± 0.23^[1] mas
距离	620 ± 30 ly (190 ± 8 pc)
绝对星等 (M_V)	2999739000000000000♠−2.61+0.27 −0.24^[5]

详细资料

半径	51^[6] R_☉
表面重力 (log g)	1.75^[7]
温度	4,350^[7] K
金属量 [Fe/H]	−0.12^[7] dex
自转速度 (v sin i)	10^[8] km/s

其他命名
1 Lac, BD+37° 4526, HD 211388, HIP 109937, HR 8498, SAO 72191.^[9]
参考数据库
SIMBAD	资料