北冕座RR
观测资料 历元 J2000 | |
---|---|
星座 | 北冕座 |
星官 | |
赤经 | 15h 41m 26.22899s[1] |
赤纬 | +38° 33′ 26.5958″[1] |
视星等(V) | 7.3 - 8.2[2] |
特性 | |
光谱分类 | M5III[3] (M3 - M6[2]) |
变星类型 | SRb[2] |
天体测定 | |
径向速度 (Rv) | -58.39[4] km/s |
自行 (μ) | 赤经:20.24[1] mas/yr 赤纬:-32.44[1] mas/yr |
视差 (π) | 2.93 ± 0.53[1] mas |
距离 | approx. 1,100 ly (approx. 340 pc) |
详细资料 | |
亮度 | 2,180[5] L☉ |
温度 | 3,309[5] K |
其他命名 | |
参考资料库 | |
SIMBAD | 资料 |
北冕座RR(RR CrB, HD 140297, HIP 76844)是M3型,位于北冕座的半规则变星,视差2.93mas,也就是距离341秒差距(1,110光年)[6]。它的光度在7.3和8.2等之间,以超过60.8天的周期变化著[2]。它距离太阳1,228光年之遥,它的亮度约为太阳的2,180倍,表面温度为3,309K[5]。
参考资料
- ^ 1.0 1.1 1.2 1.3 1.4 van Leeuwen, F. Validation of the new Hipparcos reduction. Astronomy and Astrophysics. 2007, 474 (2): 653–664 [2023-08-03]. Bibcode:2007A&A...474..653V. S2CID 18759600. arXiv:0708.1752
. doi:10.1051/0004-6361:20078357. (原始内容存档于2019-12-07). Vizier catalog entry (页面存档备份,存于互联网档案馆)
- ^ 2.0 2.1 2.2 2.3 Otero, Sebastian Alberto. RR Coronae Borealis. The International Variable Star Index. American Association of Variable Star Observers. 15 August 2011 [20 July 2014]. (原始内容存档于2017-10-07).
- ^ Yoon, Dong-Hwan; Cho, Se-Hyung; Kim, Jaeheon; Yun, Young joo; Park, Yong-Sun. SiO and H2O Maser Survey toward Post-asymptotic Giant Branch and Asymptotic Giant Branch Stars. The Astrophysical Journal Supplement. 2014, 211 (1): 15. Bibcode:2014ApJS..211...15Y. S2CID 73561291. doi:10.1088/0067-0049/211/1/15.
- ^ Famaey, B.; Jorissen, A.; Luri, X.; Mayor, M.; Udry, S.; Dejonghe, H.; Turon, C. Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters. Astronomy and Astrophysics. 2005, 430: 165. Bibcode:2005A&A...430..165F. S2CID 17804304. arXiv:astro-ph/0409579
. doi:10.1051/0004-6361:20041272.
- ^ 5.0 5.1 5.2 McDonald, I.; Zijlstra, A. A.; Boyer, M. L. Fundamental Parameters and Infrared Excesses of Hipparcos Stars. Monthly Notices of the Royal Astronomical Society. 2012, 427 (1): 343–57. Bibcode:2012MNRAS.427..343M. arXiv:1208.2037
. doi:10.1111/j.1365-2966.2012.21873.x.
- ^ SIMBAD, RR Coronae Borealis (页面存档备份,存于互联网档案馆) (accessed 20 February 2013)
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