タグ
名称
- ペガスス座51番星
- 51 Pegasi
- 51 Peg
- BD+19 5036
- GJ 882
- HD 217014
- HIP 113357
- HR 8729
位置
- 星座:
- 座標 (cor):
- 01:22h 57m 27.9805s +20d 46m 07.796s (J2000, SIMBAD < ICRS)
- 02:22h 57m 27.981s +20d 46m 07.80s (J2000, SIMBAD < FK5)
- 03:22h 55m 00.38s +20d 30m 01.1s (B1950, SIMBAD < FK4)
- 固有運動 (pm):
- 01:208.07 mas/yr, 60.96 mas/yr (SIMBAD)
- 視線速度 (rv):
- 01:-31.2±2 km/s (SIMBAD)
- 02:-33.7 km/s (Cat-GJ 1991)
- 年周視差 (plx):
- 01:65.10±0.76 (SIMBAD < Cat-HIP 1997)
- 02:58.4±8.2 (Cat-GJ 1991)
- 距離 (dis):
- 01:15.36±0.16 pc (C:plx01, SIMBAD)
- 02:50.1±0.6 ly (C:plx01, SIMBAD)
測光
- スペクトル型 (sp):
- 01:G5V (SIMBAD < Cenarro et al. 2007)
- 02:G4V (Cat-GJ 1991)
- 03:G5 (Cat-NSV 2004)
- 04:G5V (Cenarro et al. 2007)
- 05:G2V (van Belle & von Braun 2009)
- 見かけの等級V (v):
- 01:5.49 mag (SIMBAD)
- 02:5.50 mag (Cat-GJ 1991)
- 03:5.53-5.43 mag (Cat-NSV 2004)
- 見かけの等級B (b):
- 01:6.16 mag (SIMBAD)
- 02:6.17 mag (C:v02+bv02, Cat-GJ 1991)
- 見かけの等級U (u):
- 00:6.37 mag (C:b02+GJ, Cat-GJ 1991)
- 色指数 B-V (bv):
- 01:0.67 mag (C:v01+b01, SIMBAD)
- 02:0.67 mag (Cat-GJ 1991)
- 03:0.67 mag (Baliunas et al. 1995)
- 変光星型 (vrt):
- 01:Suspected (Cat-NSV 2004)
- 変光範囲 (vrr):
- 01:5.53-5.43 mag (Cat-NSV 2004)
- 変光幅 (vra):
- 01:0.10 mag (Cat-NSV 2004)
- 変光周期 (vrp):
物理的性質
- 絶対等級V (abs):
- 01:4.56 (C:plx01+v01, SIMBAD)
- 02:4.33 (Cat-GJ 1991)
- 03:4.82 (Johnson & Wright 1983)
- 全波長の光度 (lum):
- 可視光での明るさ (br):
- 01:1.28 (C:abs01, SIMBAD)
- 02:1.58 (C:abs02, Cat-GJ 1991)
- 質量 (mas):
- 01:1.12±0.06 Msol (EPE < Fuhrmann et al. 1997)
- 03:1.12±0.06 Msol (Fuhrmann et al. 1997)
- 04:1.09 Msol (Butler et al. 2006)
- 02:1.054 -0.036/+0.039 Msol (Takeda et al. 2007)
- 半径 (rad):
- 08:1.266±0.046 Rsol (EPE < Baines et al. 2009)
- 01:1.10 Rsol (Gray 1967)
- 02:0.99 Rsol (Wesselink et al. 1972)
- 03:1.05 Rsol (Lacy 1977)
- 04:0.98 Rsol (Johnson & Wright 1983)
- 05:1.20 Rsol (Fuhrmann et al. 1997)
- 07:1.15±0.04 Rsol (Takeda et al. 2007)
- 06:1.266±0.046 Rsol (Baines et al. 2009)
- 09:1.23±0.02 Rsol (van Belle & von Braun 2009)
- 温度 (tmp):
- 09:5793±90 K (EPE < Fuhrmann et al. 1997)
- 01:5727 K (Hearnshaw 1972)
- 02:5750 K (Johnson & Wright 1983)
- 03:5740 K (McWilliam 1990)
- 04:5755 K (Edvardsson 1993)
- 05:5773 K (Mayor & Queloz 1995 <)
- 06:5724 K (Mayor & Queloz 1995 <)
- 07:5669 K (Gratton et al. 1996)
- 08:5779 K (Gonzalez 1997)
- 12:5793±90 K (Fuhrmann et al. 1997)
- 11:5847±20 K (Taylor 2005)
- 13:5787±44 K (Butler et al. 2006)
- 10:5729 K (Cenarro et al. 2007)
- 14:5636±50 K (van Belle & von Braun 2009)
- 重力 (grv):
- 01:log g 4.27 (Hearnshaw 1972)
- 02:log g 3.76 (McWilliam 1990)
- 03:log g 4.13 (Xu 1991)
- 04:log g 4.18 (Edvardsson 1993)
- 05:log g 4.44 (Gonzalez 1997)
- 06:log g 4.33±0.1 (Fuhrmann et al. 1997)
- 09:log g 4.449±0.060 (Butler et al. 2006)
- 07:log g 4.12 (Cenarro et al. 2007)
- 08:log g 4.36 +0.04/-0.03 (Takeda et al. 2007)
- 重元素比 (met):
- 05:[Fe/H] 0.06 (Edvardsson et al. 1993)
- 06:[M/H] 0.31 (Edvardsson et al. 1993)
- 01:[Fe/H] 0.20±0.07 (EPE < Euhrmann et al. 1997)
- 02:[Fe/H] 0.20±0.07 (Fuhrmann et al. 1997)
- 03:[Fe/H] 0.216±0.021 (Taylor 2005)
- 07:[Fe/H] 0.200±0.030 (Butler et al. 2006)
- 04:[Fe/H] 0.11 (Cenarro et al. 2007)
- 自転速度 (rtv):
- 01:v sin i 2.0±1 km/s (Fuhrmann et al. 1997)
- 02:v sin i 2.57±0.5 km/s (Butler et al. 2006)
- 自転周期 (rtp):
- 03:37 days (Baliunas et al. 1996)
- 01:~37.1 days (Henry et al. 1997)
- 02:~29.6 days (Fuhrmann et al. 1997)
- 彩層の活動 (cha):
- 01:log R'_HK -5.074 (Baliunas et al. 1995)
- 年齢 (age):
- 01:4.0±2.5 Gyr (EPE < Fuhrmann et al. 1997)
- 02:4.0±2.5 Gyr (Fuhrmann et al. 1997)
- 03:6.76 +1.64/-1.48 Gyr (Takeda et al. 2007)
- 04:~7.2 Gyr (C:cha01, *age-c1)
追加情報
- E101:空間速度UVW:22.4 km/s, 22.3 km/s, -29.6 km/s (Edvardsson et al. 1993)
注釈
参考文献
最終更新:2009年11月28日 02:12