HD 115404
HD 115404 是一個位於后髮座附近的雙星系統。依巴谷卫星進行的視差測量將系統置於 36 光年或 11 秒差距之外[11]。視星等分別為 6.66 和 9.50[2]。
主星A是一顆K型主序星[5]。它的質量大約是太陽的70%,半徑是太陽的0.76倍[8]。它的伴星是一顆紅矮星(M0.5 V)[12]。它的質量是太陽的54.2%,半徑是太陽的0.55 倍[9]。這兩顆恆星每770年繞軌道運行一次[7]。該系統被認為相當古老,有5.4到135億年的歷史[8]。
參考資料
- ^ 1.0 1.1 1.2 Vallenari, A.; et al. Gaia Data Release 3. Summary of the content and survey properties. Astronomy & Astrophysics. 2022. arXiv:2208.00211
. doi:10.1051/0004-6361/202243940 . Gaia DR3 record for this source at VizieR.
- ^ 2.0 2.1 2.2 Fabricius, C.; Høg, E.; Makarov, V. V.; Mason, B. D.; Wycoff, G. L.; Urban, S. E. The Tycho double star catalogue. Astronomy and Astrophysics. 2002, 384: 180–189. Bibcode:2002A&A...384..180F. doi:10.1051/0004-6361:20011822
.
- ^ 3.0 3.1 3.2 3.3 Vallenari, A.; et al. Gaia Data Release 3. Summary of the content and survey properties. Astronomy & Astrophysics. 2022. arXiv:2208.00211
. doi:10.1051/0004-6361/202243940 . Gaia DR3 record for this source at VizieR.
- ^ 4.0 4.1 Cowley, A. P.; Hiltner, W. A.; Witt, A. N. Spectral classification and photometry of high proper motion stars. The Astronomical Journal. 1967, 72: 1334. Bibcode:1967AJ.....72.1334C. doi:10.1086/110413.
- ^ 5.0 5.1 White, Russel J.; Gabor, Jared M.; Hillenbrand, Lynne A. High-Dispersion Optical Spectra of Nearby Stars Younger Than the Sun. The Astronomical Journal. 2007, 133 (6): 2524. Bibcode:2007AJ....133.2524W. S2CID 122854. arXiv:0706.0542
. doi:10.1086/514336.
- ^ Maldonado, J.; Martínez-Arnáiz, R. M.; Eiroa, C.; Montes, D.; Montesinos, B. A spectroscopy study of nearby late-type stars, possible members of stellar kinematic groups. Astronomy and Astrophysics. 2010, 521: A12. Bibcode:2010A&A...521A..12M. S2CID 119209183. arXiv:1007.1132
. doi:10.1051/0004-6361/201014948.
- ^ 7.0 7.1 Sixth Catalog of Orbits of Visual Binary Stars. United States Naval Observatory. [11 August 2017]. (原始内容存档于2017-08-01).
- ^ 8.00 8.01 8.02 8.03 8.04 8.05 8.06 8.07 8.08 8.09 Brewer, John M.; Fischer, Debra A.; Valenti, Jeff A.; Piskunov, Nikolai. Spectral Properties of Cool Stars: Extended Abundance Analysis of 1,617 Planet-Search Stars. The Astrophysical Journal Supplement Series. 2016, 225 (2): 32. Bibcode:2016ApJS..225...32B. S2CID 118507965. arXiv:1606.07929
. doi:10.3847/0067-0049/225/2/32.
- ^ 9.0 9.1 9.2 Newton, Elisabeth R.; Irwin, Jonathan; Charbonneau, David; Berlind, Perry; Calkins, Michael L.; Mink, Jessica. The Hα emission of nearby M dwarfs and its relation to stellar rotation. The Astrophysical Journal. 2017, 834 (1): 85. Bibcode:2017ApJ...834...85N. S2CID 55000202. arXiv:1611.03509
. doi:10.3847/1538-4357/834/1/85.
- ^ [ HD 115404]. SIMBAD. 斯特拉斯堡天文資料中心.
- ^ van Leeuwen, F. Validation of the new Hipparcos reduction. Astronomy and Astrophysics. 2007, 474 (2): 653–664 [2023-04-19]. Bibcode:2007A&A...474..653V. S2CID 18759600. arXiv:0708.1752
. doi:10.1051/0004-6361:20078357. (原始内容存档于2016-04-02). Vizier catalog entry (页面存档备份,存于互联网档案馆)
- ^ Alonso-Floriano, F. J.; Morales, J. C.; Caballero, J. A.; Montes, D.; Klutsch, A.; Mundt, R.; Cortés-Contreras, M.; Ribas, I.; Reiners, Ansgar; Amado, P. J.; Quirrenbach, A.; Jeffers, S. V. CARMENES input catalogue of M dwarfs (PDF). Astronomy & Astrophysics. 2015, 577: A128. S2CID 53135130. arXiv:1502.07580
. doi:10.1051/0004-6361/201525803. [失效連結]
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- 右执法(35.6 ± 0.3光年;1颗恒星)
- 天市右垣四(36.3 ± 0.3光年;1颗恒星)
- 大陵增十三(36.6 ± 0.3光年;2颗恒星)
- 剑鱼座ζ(38.0 ± 0.2光年;2颗恒星)
- 臼三(38.8 ± 0.3光年;2颗恒星)
- 东上相(39.2 ± 0.4光年;2颗恒星)
- 南三角座ζ(39.3 ± 0.3光年;2颗恒星)
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- 三角座δ(35.4 ± 0.3光年;2颗恒星)
- 小狮座11(36.5 ± 0.3光年;2颗恒星)
- 蜀增一(38.8 ± 0.4光年;1颗恒星)
- 网罟座ζ(39.2 ± 0.3光年;2颗恒星)
- 飞马座85(39.5 ± 0.4光年;3颗恒星)
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| | | | | | | | 左栏标出的是恒星系统中主要恒星的恒星类型。‡若考虑距离误差容限,恒星系统有可能在此范围外。 粗体字突出的恒星系统为拥有至少一颗绝对星等在+8.5或以上的恒星的系统。斜体字突出的是有可能在此范围之外的恒星系统。 |
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