Astronomisches Rechen-Institut Heidelberg

ARICNS ARI Data Base for Nearby Stars


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Running No.: 1396   CNS designation: Gl 670 A    HD: 156897    HIP:  84893   BD: -20° 4731    YPC: 3935.00  

RA (2000):  17 21 00   Dec (2000):  -21 06.8  
RA (1950):  17 18 00   Dec (1950):  -21 03.7  
RA (1900):  17 15 00   Dec (1900):  -21 00.4  

µ(RA):  .249 "/yr   µ(Dec):  -.220 "/yr     Total Proper Motion:   0.332 "/yr  131.4°  

V :  4.40 c   B-V:  .38 J   U-B:  -.05 J   V-Rc:  0.24 J   R-Ic:  0.24 J   Spectral Type:  F2 V   

Trig. Par.:  59.5 ± 9.7  mas   Obs.  (good accord.)    Res. Par. (uvby-phot.):  55.7  ± 9.0  mas     Distance:  17.95  ± 2.90 pc  

MV :  3.13 c   M Qual.: d     RV: - 7.8 km/s   RV Qual.: a   

Space Velocity:     U:  -003  km/s    V:  -004  km/s    W:  -029 km/s

Additional Designations: XI Oph  

Notes:  V(AB) = 4.39 d(m) = 4.5  


Other ARICNS component(s):  Gl  670  B   


HIPPARCOS DATA

 Hipp P__HIP_H2___RA____J2000__Dec________V___v_S10__piH______pma_____pmd____

      N 84893| |17 21  0.37|-21  6 46.6| 4.39| |G |  57.48|  262.01| -204.74|


__sRA___sDec___spi____spma___spmd___-%__F2____Bt_____sig___Vt_____sig__

  0.92|  0.70|  0.93|  1.17|  0.77|  0| 1.59|      |     |      |     |


36__B-V___sig__s_V-I__sig__s_43__Hp_____sig____Hmax__Hmin_period 52.3.4_

 | 0.394|0.019|G|0.47|0.02|A| | 4.4704|0.0007| 4.47| 4.48|       | | | |


___CCDM___56.7_58_59.0.1_62_pa____sep____sig__d(Hp)_sig__S_C_N_

17210-2107|I| 1| 1| | | |  |   |       |     |     |    |S| | |


    U      V      W      sU    sV    sW

   -3.6   -2.3  -28.2     .7    .1    .5




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Updated: 05 November 1998

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