人马座6262 Sagittarii),拜耳命名法人马座c,中文名狗国三,是一颗位于人马座M-型巨星[1]。它位于星群飞弹螺(中国古代星官称为狗国)的西南边。它是一颗不规则变星。亮度在4.45-4.64之间变化,当它最亮时,是飞弹螺星群最明亮的一颗恒星。人马座62距离地球约450光年[1]

人马座62(狗国三)
62 Sagittarii
观测资料
历元 J2000.0
星座 人马座
星官 斗宿 狗国
赤经 20h 02m 39.4805s[1]
赤纬 −27° 42′ 35.441″[1]
视星等(V) 4.45 - 4.64[2]
特性
光谱分类M4III[1]
U−B 色指数+1.80[3]
B−V 色指数+1.65[3]
R−I 色指数+1.56[3]
变星类型不规则变星[2]
天体测定
径向速度 (Rv)9.9 ± 0.9[1] km/s
自行 (μ) 赤经:32.28[1] mas/yr
赤纬:14.35[1] mas/yr
视差 (π)7.28 ± 0.74[1] mas
距离approx. 450 ly
(approx. 140 pc)
绝对星等 (MV)−1.1[4]
详细资料
半径70[5] R
其他命名
62 Sgr, c Sagittarii, c Sgr, V3872 Sagittarii, V3872 Sgr, CD−28 16355, CPD−28 7105, FK5 753, GC 27763, HD 189763, HIP 98688, HR 7650, PPM 270603, SAO 188844.[1]
参考资料库
SIMBAD资料

参考资料

编辑
  1. ^ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 V* V3872 Sgr -- Pulsating variable Star, database entry, SIMBAD. Accessed on line November 19, 2009.
  2. ^ 2.0 2.1 V3872 Sgr, database entry, The combined table of GCVS Vols I-III and NL 67-78 with improved coordinates, General Catalogue of Variable Stars, Sternberg Astronomical Institute, Moscow, Russia. Accessed on line November 19, 2009.
  3. ^ 3.0 3.1 3.2 HR 7650, database entry, The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version), D. Hoffleit and W. H. Warren, Jr., CDS ID V/50. Accessed on line November 19, 2009.
  4. ^ From apparent magnitude and parallax.
  5. ^ HD 189763, database entry, Catalog of Apparent Diameters and Absolute Radii of Stars (CADARS), 3rd edition, L. E. Pasinetti-Fracassini, L. Pastori, S. Covino, and A. Pozzi, CDS ID II/224. Accessed on line November 19, 2009.