跳转到内容

近鈇銊三

维基百科,自由的百科全书
(重定向自玉夫座δ
近鈇銊三(玉夫座δ)
近鈇銊三(玉夫座δ)的位置(紅圈)
觀測資料
曆元 J2000
星座 玉夫座
星官
赤經 23h 48m 55.54658s[1]
赤緯 -28° 07′ 48.9745″[1]
視星等(V) 4.57[2]
特性
光谱分类A0Vp(Lam Boo)n[3]
U−B 色指数-0.03[2]
B−V 色指数+0.01[2]
天体测定
徑向速度 (Rv)+8.70[4] km/s
自行 (μ) 赤经:+100.80[1] mas/yr
赤纬:-105.34[1] mas/yr
视差 (π)23.73 ± 0.22[1] mas
距离137 ± 1 ly
(42.1 ± 0.4 pc)
绝对星等 (MV)1.47[5]
詳細資料
質量2.27[6] M
半徑1.8[7] R
表面重力 (log g)4.34[8]
亮度29[6] L
溫度9,750[6] K
自轉速度 (v sin i)299[6] km/s
其他命名
ADS 17021、CCDM J23489-2808AB、CD-28°18353、FK5 896、GC 33050、GSC 06988-01337、HD 223340/223352, HIP 117452、HR 9016、SAO 192167、 WDS J23489-2808AB
參考資料庫
SIMBAD资料

近鈇銊三(玉夫座δ,δ Scl,δ Sculptoris)是在星座玉夫座的一顆三合星[9],它距離地球大約137.4 光年[1]

主星玉夫座δA,是一顆白色的A型主序矮星[3]視星等 +4.59。它的伴星玉夫座δB非常黯淡,視星等11.6,與主星距離4 弧秒,或超過175 天文單位。以74弧秒的更大間隔圍繞這對恆星運行的是黃色的玉夫座δC,其視星等為9.4[9][10]

該系統是劍魚座AB移動星群的候選成員,這是一個由年齡相似的恆星組成的星協,它們在太空中有著共同的航向[11]


參考資料

[编辑]
  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. S2CID 18759600. arXiv:0708.1752可免费查阅. doi:10.1051/0004-6361:20078357.  Vizier catalog entry页面存档备份,存于互联网档案馆
  2. ^ 2.0 2.1 2.2 Ducati, J. R. VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system. CDS/ADC Collection of Electronic Catalogues. 2002, 2237. Bibcode:2002yCat.2237....0D. 
  3. ^ 3.0 3.1 Abt, Helmut A.; Morrell, Nidia I. The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars. Astrophysical Journal Supplement. 1995, 99: 135. Bibcode:1995ApJS...99..135A. doi:10.1086/192182可免费查阅. 
  4. ^ Gontcharov, G. A. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system. Astronomy Letters. 2006, 32 (11): 759–771. Bibcode:2006AstL...32..759G. S2CID 119231169. arXiv:1606.08053可免费查阅. doi:10.1134/S1063773706110065. 
  5. ^ Anderson, E.; Francis, Ch. XHIP: An extended hipparcos compilation. Astronomy Letters. 2012, 38 (5): 331. Bibcode:2012AstL...38..331A. S2CID 119257644. arXiv:1108.4971可免费查阅. doi:10.1134/S1063773712050015.  Vizier catalog entry
  6. ^ 6.0 6.1 6.2 6.3 Zorec, J.; Royer, F. Rotational velocities of A-type stars. Astronomy & Astrophysics. 2012, 537: A120. Bibcode:2012A&A...537A.120Z. S2CID 55586789. arXiv:1201.2052可免费查阅. doi:10.1051/0004-6361/201117691.  Vizier catalog entry页面存档备份,存于互联网档案馆
  7. ^ Allende Prieto, C.; Lambert, D. L. Fundamental parameters of nearby stars from the comparison with evolutionary calculations: Masses, radii and effective temperatures. Astronomy and Astrophysics. 1999, 352: 555–562. Bibcode:1999A&A...352..555A. arXiv:astro-ph/9911002可免费查阅.  Vizier catalog entry页面存档备份,存于互联网档案馆
  8. ^ David, Trevor J.; Hillenbrand, Lynne A. The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets. The Astrophysical Journal. 2015, 804 (2): 146. Bibcode:2015ApJ...804..146D. S2CID 33401607. arXiv:1501.03154可免费查阅. doi:10.1088/0004-637X/804/2/146.  Vizier catalog entry页面存档备份,存于互联网档案馆
  9. ^ 9.0 9.1 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. S2CID 14878976. arXiv:0806.2878可免费查阅. doi:10.1111/j.1365-2966.2008.13596.x可免费查阅.  Vizier catalog entry页面存档备份,存于互联网档案馆
  10. ^ Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog. The Astronomical Journal. 2001, 122 (6): 3466. Bibcode:2001AJ....122.3466M. doi:10.1086/323920可免费查阅.  Vizier catalog entry页面存档备份,存于互联网档案馆
  11. ^ McCarthy, Kyle; White, Russel J., The Sizes of the Nearest Young Stars, The Astronomical Journal, June 2012, 143 (6): 14, Bibcode:2012AJ....143..134M, S2CID 118538522, arXiv:1201.6600可免费查阅, doi:10.1088/0004-6256/143/6/134, 134.