HD 4628

HD 4628，又名BD+04 123，SAO 109471、HR 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0^h 43^m 8.2^s，赤緯+4° -57.57′ 0″。

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)	2998895900000000000♠−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	6999700000000000000♠0.70±0.10[6] M☉
半徑	6999749000000000000♠0.749±0.051[7] R☉
表面重力 (log g)	7000438999999999999♠4.39±0.16[6]
亮度	0.28[6] L☉
溫度	7003505500000000000♠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

參考文獻

1. 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 . doi:10.1051/0004-6361/201833051. VizieR中此天體在蓋亞望遠鏡第二批數據發布的記錄
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 Mermilliod, J.-C., Compilation of Eggen's UBV data, transformed to UBV (unpublished), Catalogue of Eggen's UBV Data.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. 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 , 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 . doi:10.1051/0004-6361/202039657 . 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 , doi:10.1051/0004-6361/200811191.
6. 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 , 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 . doi:10.1088/0004-637X/694/2/1085.
8. 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 , 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 , doi:10.1086/591785
10. 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）.