Astronomisches Rechen-Institut Heidelberg

ARICNS ARI Data Base for Nearby Stars


Star Page



Running No.: 2456   CNS designation: GJ 2147    HIP:  99438   WD:     

RA (2000):  20 10 56   Dec (2000):  -30 13.1  
RA (1950):  20 07 51   Dec (1950):  -30 21.8  
RA (1900):  20 04 45   Dec (1900):  -30 30.3  

µ(RA):  -.340 "/yr   µ(Dec):  -.245 "/yr     Total Proper Motion:   0.419 "/yr  234.2°  

V :  12.21    B-V:  .06    U-B:  -.69    Spectral Type:  DA4   

Res. Par. (WD-phot.) :  79.0  ± 16.0  mas     Distance:  12.66  ± 2.56 pc  

MV : 11.70    M Qual.: d    

Additional Designations: LTT 7987 LP 926-40 L 565-18  

Notes:  mod = 0.51 B-V  



HIPPARCOS DATA

 Hipp P__HIP_H2___RA____J2000__Dec________V___v_S10__piH______pma_____pmd____

      N 99438| |20 10 56.85|-30 13  6.6|12.18| |G |  65.06| -345.60| -250.49|


__sRA___sDec___spi____spma___spmd___-%__F2____Bt_____sig___Vt_____sig__

  3.39|  2.33|  3.85|  4.17|  3.00|  4| 1.59|      |     |      |     |


36__B-V___sig__s_V-I__sig__s_43__Hp_____sig____Hmax__Hmin_period 52.3.4_

 | 0.070|0.040|G|0.08|0.04|R| |12.3134|0.0089|12.19|12.42|       | | | |


___CCDM___56.7_58_59.0.1_62_pa____sep____sig__d(Hp)_sig__S_C_N_

          | |  | 1| | | |  |   |       |     |     |    | |D| |


    U      V      W      sU    sV    sW 

                                        




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


Updated: 4 March 1998

webmaster@ari.uni-heidelberg.de