タグ
位置
- 星座:
- 座標 (cor):
- 01:21h 17m 15.2697s, -38d 52m 02.502s (J2000, SIMBAD < ICRS)
- 02:21h 17m 15.270s, -38d 52m 02.50s (J2000, SIMBAD < FK5)
- 03:21h 14m 19.98s, -39d 03m 41.4s (B1950, SIMBAD < FK4)
- 固有運動 (pm):
- 01:-3258.79 mas/yr, -1146.51 mas/yr (SIMBAD)
- 02:3455 mas/yr, 250.6 deg (RECONS)
- 視線速度 (rv):
- 年周視差 (plx):
- 01:258.6±10.2 mas (GJ)
- 02:253.36±1.13 mas (SIMBAD < HIP)
- 03:253.43±1.12 mas (RECONS)
- 距離 (dis):
- 01:3.947±0.018 pc (C:plx01, HIP)
連星
測光
- スペクトル型 (sp):
- 01:M0V (SIMBAD)
- 02:M0Ve (GJ, GCVS)
- 見かけの等級V (v):
- 01:6.68 mag (SIMBAD)
- 02:6.66 mag (RECONS)
- 03:6.67 mag (GJ)
- 04:6.66 mag (UBV)
- 05:6.67 mag (GKL99)
- 見かけの等級B (b):
- 01:8.09 mag (SIMBAD)
- 02:8.08 mag (C:v02+bv02, GJ)
- 03:8.08 mag (C:v03+bv03, UBV)
- 04:8.07 mag (GKL99)
- 見かけの等級U (u):
- 01:9.29 mag (GKL99)
- 02:9.31-9.21 mag (GCVS)
- 色指数 B-V (bv):
- 01:1.41 mag (C:v01+b01, SIMBAD)
- 02:1.41 mag (GJ)
- 03:1.42 mag (UBV)
- 04:1.40 mag (GKL99)
- 変光星型 (vrt):
- 変光範囲 (vrr):
- 01:9.31-9.21 mag (GCVS, *U flt)
- 変光幅 (vra):
- 01:0.1 mag (C:vrr01, GCVS, *U flt)
- 変光周期 (vrp):
物理的性質
- 絶対等級V (abs):
- 01:8.70 mag (C:plx01+v01, SIMBAD)
- 02:8.69 mag (RECONS)
- 02:8.73 mag (GJ)
- 02:8.75 mag (Johnson & Wright 1983)
- 全波長の光度 (lum):
- 可視光での明るさ (br):
- 01:0.028 xSol (C:abs01, SIMBAD)
- 質量 (mas):
- 01:0.60 Msol (RECONS)
- 02:0.52 Msol (GKL99)
- 半径 (rad):
- 01:0.71 Rsol (GKL99)
- 03:0.72 Rsol (CADARS)
- 04:0.66 Rsol (CADARS)
- 02:0.66 Rsol (Johnson & Wright 1983)
- 温度 (tmp):
- 01:3816 K (Johnson & Wright 1983)
- 02:3800 K (Gautier et al. 2007)
- 03:3987 K (Gautier et al. 2007,*T_IRFM)
- 重力 (grv):
- 重元素比 (met):
- 自転速度 (rtv):
- 01:3.3±1.2 km/s (ROT, v sin i)
- 自転周期 (rtp):
- 年齢 (age):
別名
- HIP 105090
- HD 202560
- GJ 825
- LHS 66
- 変光星:
最終更新:2009年11月03日 18:31