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Running No.: 2253   CNS designation: GJ 1258 ( = Wo 9705 )   HIP: 102237   YPC: 4942.00   LHS: 3574   

RA (2000):  20 43 00   Dec (2000):  +35 29.9  
RA (1950):  20 41 03   Dec (1950):  +35 19.5  
RA (1900):  20 39 06   Dec (1900):  +35 09.2  

µ(RA):  -.225 "/yr   µ(Dec):  -.575 "/yr     Total Proper Motion:   0.618 "/yr  201.4°  

V :  11.40    B-V:  1.38    U-B: +1.35    V-Rc:  .86    R-Ic:  .83    Spectral Type:  K7   

Trig. Par.:  38.7 ± 9.7  mas   Obs.  (good accord.)    Res. Par. (SpT/UBVRI) :  27.1  ± 6.7  mas     Distance:  36.90  ± 9.12 pc  

MV :  8.6    M Qual.: e     RV: + 42.  km/s   RV Qual.: d   

Space Velocity:     U:  +110  km/s    V:  +015  km/s    W:  -034 km/s

Additional Designations: Ross 766  



HIPPARCOS DATA

 Hipp P__HIP_H2___RA____J2000__Dec________V___v_S10__piH______pma_____pmd____

      N102237| |20 42 59.96|+35 29 48.3|11.41| |G |  21.86| -205.31| -569.55|


__sRA___sDec___spi____spma___spmd___-%__F2____Bt_____sig___Vt_____sig__

  1.49|  1.62|  2.18|  1.97|  1.94|  0| 1.27|      |     |      |     |


36__B-V___sig__s_V-I__sig__s_43__Hp_____sig____Hmax__Hmin_period 52.3.4_

 | 1.381|0.015|G|1.63|0.03|I| |11.5221|0.0051|11.42|11.60|       | | | |


___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 

  129.8   10.0  -45.2   12.1   7.8   4.2




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Updated: 8 September 1998

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