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Running No.: 912   CNS designation: Gl 447    HIP:  57548   YPC: 2730.00   Vys: 286    LHS:  315   

RA (2000):  11 47 45   Dec (2000):  +00 48.3  
RA (1950):  11 45 09   Dec (1950):  +01 06.0  
RA (1900):  11 42 33   Dec (1900):  +01 23.7  

µ(RA):  .633 "/yr   µ(Dec):  -1.190 "/yr     Total Proper Motion:   1.348 "/yr  152.0°  

V :  11.12    B-V:  1.76    U-B:  1.34    V-Rc:  1.31    R-Ic:  1.67    Spectral Type:  M4 V   

Trig. Par.: 298.2 ± 1.7  mas   Obs.  (good accord.)    Res. Par. (Trig. Par.): 298.2  ± 1.7  mas     Distance:  3.35  ± .02 pc  

MV : 13.49    M Qual.: a     RV: - 31.3 km/s   RV Qual.: a   

Space Velocity:     U:  +018  km/s    V:  +006  km/s    W:  -033 km/s

Additional Designations: Ross 128 FI Vir  



HIPPARCOS DATA

 Hipp P__HIP_H2___RA____J2000__Dec________V___v_S10__piH______pma_____pmd____

      N 57548| |11 47 44.40|+ 0 48 16.4|11.12| |G | 299.58|  605.72|-1219.43|


__sRA___sDec___spi____spma___spmd___-%__F2____Bt_____sig___Vt_____sig__

  1.98|  1.62|  2.20|  2.14|  1.86|  0|-0.25|      |     |      |     |


36__B-V___sig__s_V-I__sig__s_43__Hp_____sig____Hmax__Hmin_period 52.3.4_

 | 1.746|0.020|G|2.97|0.01|A| |11.0693|0.0050|10.99|11.12|       |C| | |


___CCDM___56.7_58_59.0.1_62_pa____sep____sig__d(Hp)_sig__S_C_N_

          | |  | 1| | | |  |   |       |     |     |    | |G| |


    U      V      W      sU    sV    sW 

   17.3    5.4  -33.4     .1    .4    .6




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Updated: 4 March 1998

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