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HD 4628

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HD 4628
觀測資料
曆元 J2000
星座 雙魚座
星官
赤經 00h 48m 22.97634s[1]
赤緯 +05° 16′ 50.2096″[1]
視星等(V) 5.74[2]
特性
光譜分類K2.5 V[3]
U−B 色指數+0.60[3]
B−V 色指數+0.89[3]
天體測定
徑向速度 (Rv)−10.41±0.15[1] km/s
自行 (μ) 赤經:755.561[1] mas/yr
赤緯:−1,141.745[1] mas/yr
視差 (π)134.4948 ± 0.0578[4] mas
距離24.25 ± 0.01 ly
(7.435 ± 0.003 pc)
絕對星等 (MV)6.37[5]
詳細資料
質量0.70±0.10[6] M
半徑0.749±0.051[7] R
表面重力 (log g)4.39±0.16[6]
亮度0.28[6] L
溫度5,055±40[6] K
金屬量 [Fe/H]–0.22[8] dex
自轉38.0 days[8]
年齡5.4[9] Gyr
其他命名
BD+04°123、​HD 4628、​HIP 3765、​HR 222、​SAO 109471、​LHS 121、​LTT 10285、​Wolf 25, Lal 1299[10]
參考資料庫
SIMBAD資料

HD 4628,又名BD+04 123SAO 109471HR 222,是一顆位於雙魚座的恆星[10],視星等為5.75,位於銀經121.49,銀緯-57.57,其B1900.0坐標為赤經0h 43m 8.2s,赤緯+4° -57.57′ 0″。

參考文獻

  1. ^ 1.0 1.1 1.2 1.3 1.4 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可免費查閱. doi:10.1051/0004-6361/201833051.  VizieR中此天體在蓋亞望遠鏡第二批數據發佈的記錄
  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 ^ Mermilliod, J.-C., Compilation of Eggen's UBV data, transformed to UBV (unpublished), Catalogue of Eggen's UBV Data.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. 
  3. ^ 3.0 3.1 3.2 Gray, R. O.; et al, Contributions to the Nearby Stars (NStars) Project: spectroscopy of stars earlier than M0 within 40 pc-The Southern Sample, The Astronomical Journal, July 2006, 132 (1): 161–170, Bibcode:2006AJ....132..161G, S2CID 119476992, arXiv:astro-ph/0603770可免費查閱, doi:10.1086/504637 
  4. ^ Brown, A. G. A.; et al. Gaia Early Data Release 3: Summary of the contents and survey properties. Astronomy & Astrophysics. 2021, 649: A1. Bibcode:2021A&A...649A...1G. S2CID 227254300. arXiv:2012.01533可免費查閱. doi:10.1051/0004-6361/202039657可免費查閱.  已忽略未知參數|collaboration= (幫助) (勘誤: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
  5. ^ Holmberg, J.; et al, The Geneva-Copenhagen survey of the solar neighbourhood. III. Improved distances, ages, and kinematics, Astronomy and Astrophysics, July 2009, 501 (3): 941–947, Bibcode:2009A&A...501..941H, S2CID 118577511, arXiv:0811.3982可免費查閱, doi:10.1051/0004-6361/200811191. 
  6. ^ 6.0 6.1 6.2 6.3 Ghezzi, L.; et al, Stellar Parameters and Metallicities of Stars Hosting Jovian and Neptunian Mass Planets: A Possible Dependence of Planetary Mass on Metallicity, The Astrophysical Journal, September 2010, 720 (2): 1290–1302, Bibcode:2010ApJ...720.1290G, S2CID 118565025, arXiv:1007.2681可免費查閱, doi:10.1088/0004-637X/720/2/1290 
  7. ^ van Belle, Gerard T.; von Braun, Kaspar. Directly Determined Linear Radii and Effective Temperatures of Exoplanet Host Stars. The Astrophysical Journal. 2009, 694 (2): 1085–1098. Bibcode:2009ApJ...694.1085V. S2CID 18370219. arXiv:0901.1206可免費查閱. doi:10.1088/0004-637X/694/2/1085. 
  8. ^ 8.0 8.1 Maldonado, J.; et al, A spectroscopy study of nearby late-type stars, possible members of stellar kinematic groups, Astronomy and Astrophysics, October 2010, 521: A12, Bibcode:2010A&A...521A..12M, S2CID 119209183, arXiv:1007.1132可免費查閱, doi:10.1051/0004-6361/201014948 
  9. ^ Mamajek, Eric E.; Hillenbrand, Lynne A., Improved Age Estimation for Solar-Type Dwarfs Using Activity-Rotation Diagnostics, The Astrophysical Journal, November 2008, 687 (2): 1264–1293, Bibcode:2008ApJ...687.1264M, S2CID 27151456, arXiv:0807.1686可免費查閱, doi:10.1086/591785 
  10. ^ 10.0 10.1 HD 4628 -- High proper-motion Star, SIMBAD Astronomical Database (Centre de Données astronomiques de Strasbourg), [2016-07-15], (原始內容存檔於2021-11-18).