Astronomisches Rechen-Institut Heidelberg

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Running No.: 3402   CNS designation: N1 452    HD: 285970    HIP:  21946   BD: +18° 685    YPC: 1047.01   Vys: 453   

RA (2000):  04 43 01   Dec (2000):  +18 42.7  
RA (1950):  04 40 06   Dec (1950):  +18 37.2  
RA (1900):  04 37 11   Dec (1900):  +18 31.5  

µ(RA):  .091 "/yr   µ(Dec):  -.089 "/yr     Total Proper Motion:   0.127 "/yr  134.4°  

V :  9.91    B-V:  1.13    U-B: +1.09    V-Rc:  .67    R-Ic:  .61    Spectral Type:  dK8   

Trig. Par.:  20.8 ± 3.2  mas   Obs.  (good accord.)    Res. Par. (Trig. Par.):  20.8  ± 3.2  mas     Distance:  48.08  ± 7.40 pc  

MV :  6.50    M Qual.: d     RV: + 14.4 km/s   RV Qual.: a    Remark:  SB-orbit   

Space Velocity:     U:  -015  km/s    V:  -029  km/s    W:  -001 km/s

Additional Designations: AG+18:369 Hy 318  

Notes:  SB: Ianna AJ 99,415; cpm with BD +18 684 (GC, 7.1m, G5) R-I=0.74?  



HIPPARCOS DATA

 Hipp P__HIP_H2___RA____J2000__Dec________V___v_S10__piH______pma_____pmd____

      N 21946| | 4 43  1.43|+18 42 41.9| 9.92| |G |  21.10|  100.30|  -93.00|


__sRA___sDec___spi____spma___spmd___-%__F2____Bt_____sig___Vt_____sig__

  2.18|  1.29|  2.22|  2.84|  1.88|  0| 0.77|11.407|0.116| 9.984|0.054|


36__B-V___sig__s_V-I__sig__s_43__Hp_____sig____Hmax__Hmin_period 52.3.4_

 | 1.122|0.007|G|1.21|0.01|I| |10.0231|0.0044|10.00|10.06|       |C| | |


___CCDM___56.7_58_59.0.1_62_pa____sep____sig__d(Hp)_sig__S_C_N_

          | |  | 1| | | |  |   |       |     |     |    | |G|G|


    U      V      W      sU    sV    sW 

  -14.9  -30.5     .6     .7   3.2    .8




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Updated: 4 March 1998

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