Astronomisches Rechen-Institut Heidelberg

ARICNS ARI Data Base for Nearby Stars


Star Page



Running No.: 1342   CNS designation: Gl 644 A    HD: 152751    HIP:  82817   BD: -08° 4352    YPC: 3845.00   Vys: 782A    LHS:  428   

RA (2000):  16 55 28   Dec (2000):  -08 20.2  
RA (1950):  16 52 48   Dec (1950):  -08 14.7  
RA (1900):  16 50 08   Dec (1900):  -08 09.0  

µ(RA):  -.827 "/yr   µ(Dec):  -.906 "/yr     Total Proper Motion:   1.227 "/yr  222.4°  

V :  9.69 c   B-V:  1.58 J   U-B:  1.08 J   V-Rc:  1.10 J   R-Ic:  1.37 J   Spectral Type:  M2.5 V J   

Trig. Par.: 154.9 ± .6  mas  16  Obs.  (fair accord.)    Res. Par. (Trig. Par.): 154.9  ± .6  mas     Distance:  6.46  ± .03 pc  

MV : 10.64 c   M Qual.: a     RV: + 14.5 km/s   RV Qual.: a   

Space Velocity:     U:  +018  km/s    V:  -034  km/s    W:  +011 km/s

Additional Designations: LTT 6749 Wolf 630 V1054 Oph  

Notes:  V(AB) = 9.02 d(m) = 0.18 ; cpm with Gl 643  


Other ARICNS component(s):  Gl  644  B    and   Gl  644  C   


HIPPARCOS DATA

 Hipp P__HIP_H2___RA____J2000__Dec________V___v_S10__piH______pma_____pmd____

      N 82817|H|16 55 28.76|- 8 20 10.8| 9.02| |G*| 174.23| -829.31| -878.77|


__sRA___sDec___spi____spma___spmd___-%__F2____Bt_____sig___Vt_____sig__

  6.80|  3.47|  3.90|  4.08|  2.48|  5| 3.06|10.982|0.054| 9.205|0.019|


36__B-V___sig__s_V-I__sig__s_43__Hp_____sig____Hmax__Hmin_period 52.3.4_

*| 1.553|0.020|G|2.46|0.00|A|*| 9.0139|0.0023| 8.97| 9.05|       |D| | |


___CCDM___56.7_58_59.0.1_62_pa____sep____sig__d(Hp)_sig__S_C_N_

16555-0820|I| 2| 2|C| |C|AS|340|  0.176|0.008| 0.08|0.21| | | |


    U      V      W      sU    sV    sW

   17.8  -29.5   10.4     .7    .7    .3




Back to the Help page for the ARICNS or to the ARICNS Page or to the Home Page of the Astronomisches Rechen-Institut


Updated: 05 November 1998

webmaster@ari.uni-heidelberg.de