ARICNS ARI Data Base for Nearby Stars

Running No.: 37   CNS designation: Gl 21    HIP:  2120   YPC:  70.01   Vys: 357   

RA (2000):  00 26 53   Dec (2000):  +70 08.5  
RA (1950):  00 24 00   Dec (1950):  +69 52.1  
RA (1900):  00 21 10   Dec (1900):  +69 35.6  

µ(RA):  -.145 "/yr   µ(Dec):  -.179 "/yr     Total Proper Motion:   0.230 "/yr  219. °  

V :  10.53    B-V:  1.50    U-B:  1.20    V-R_c:  .95    R-I_c:  1.03    Spectral Type:  M0.5   

Trig. Par.:  59.0 ± 4.6  mas   3  Obs.  (good accord.)    Res. Par. (Trig. Par.):  59.0  ± 4.6  mas     Distance:  16.95  ± 1.32 pc  

M_V :  9.38    M Qual.: b     RV: - 3.6 km/s   RV Qual.: a   

Space Velocity:     U:  +012  km/s    V:  +005  km/s    W:  -014 km/s

Additional Designations: LTT 17100 AC+69:173  

 Hipp P__HIP_H2___RA____J2000__Dec________V___v_S10__piH______pma_____pmd____

      N  2120| | 0 26 52.71|+70  8 32.7|10.52| |G |  61.39| -135.47| -148.03|


__sRA___sDec___spi____spma___spmd___-%__F2____Bt_____sig___Vt_____sig__

  1.21|  1.06|  1.51|  1.62|  1.21|  0| 0.29|12.129|0.133|10.734|0.064|


36__B-V___sig__s_V-I__sig__s_43__Hp_____sig____Hmax__Hmin_period 52.3.4_

 | 1.459|0.021|G|1.85|0.09|I| |10.5945|0.0031|10.55|10.66|       | | | |


___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 

   10.9    4.0  -10.9     .5    .7    .3

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Updated: 4 March 1998