Astronomisches Rechen-Institut Heidelberg

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Running No.: 2247   CNS designation: GJ 1255 - ( = Wo 9710 )   HD: 199476    HIP: 102970   BD: +74° 889    YPC: 5020.00   LHS: 3592   

RA (2000):  20 51 44   Dec (2000):  +74 46.8  
RA (1950):  20 52 04   Dec (1950):  +74 34.9  
RA (1900):  20 52 21   Dec (1900):  +74 23.0  

µ(RA):  .405 "/yr   µ(Dec):  .577 "/yr     Total Proper Motion:   0.705 "/yr   35.1°  

V :  7.81    B-V:  .69    U-B:  .15    V-Rc:  .39    R-Ic:  .36    Spectral Type:  G8 V   

Trig. Par.:  44.7 ± 8.6  mas   Obs.  (good accord.)    Res. Par. (Trig. Par.):  44.7  ± 8.6  mas     Distance:  22.37  ± 4.30 pc  

MV :  6.06    M Qual.: d     RV: - 30.8 km/s   RV Qual.: a   

Space Velocity:     U:  -061  km/s    V:  -052  km/s    W:  -008 km/s


Other ARICNS component(s):  GJ 1255  A    and   GJ 1255  B    and   GJ 1255  C   


HIPPARCOS DATA

 Hipp P__HIP_H2___RA____J2000__Dec________V___v_S10__piH______pma_____pmd____

      N102970| |20 51 44.95|+74 46 49.2| 7.81| |H |  33.80|  402.88|  575.67|


__sRA___sDec___spi____spma___spmd___-%__F2____Bt_____sig___Vt_____sig__

  0.62|  0.61|  0.68|  0.68|  0.61|  1| 0.09| 8.683|0.011| 7.890|0.009|


36__B-V___sig__s_V-I__sig__s_43__Hp_____sig____Hmax__Hmin_period 52.3.4_

 | 0.685|0.011|G|0.74|0.01|H| | 7.9490|0.0012| 7.93| 7.97|       | | | |


___CCDM___56.7_58_59.0.1_62_pa____sep____sig__d(Hp)_sig__S_C_N_

          | |  | 1| | | |  |   |       |     |     |    | | | |


    U      V      W      sU    sV    sW

  -83.3  -60.5   -8.1    1.9    .9    .3




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Updated: 05 November 1998

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