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Running No.: 1415   CNS designation: Gl 681 AB   HD: 159561    HIP:  86032   BD: +12° 3252    YPC: 4000.00  

RA (2000):  17 34 56   Dec (2000):  +12 33.6  
RA (1950):  17 32 37   Dec (1950):  +12 35.7  
RA (1900):  17 30 18   Dec (1900):  +12 38.0  

µ(RA):  .118 "/yr   µ(Dec):  -.228 "/yr     Total Proper Motion:   0.257 "/yr  152.6°  

V :  2.09 c   B-V:  .15 J   U-B:  .11 J   Spectral Type:  A5 III   

Trig. Par.:  63.8 ± 4.4  mas   Obs.  (good accord.)    Res. Par. (Trig. Par.):  63.8  ± 4.4  mas     Distance:  15.67  ± 1.08 pc  

MV :  1.11 c   M Qual.: b     RV: + 12.6 km/s   RV Qual.: b    Remark:  SB   

Space Velocity:     U:  +021  km/s    V:  +001  km/s    W:  -009 km/s

Additional Designations: ALF Oph  

Notes:  astr. bin.: a 0.483" P 8.517yr d(L') = 3.5 : Kamper ea. AJ98,686  



HIPPARCOS DATA

 Hipp P__HIP_H2___RA____J2000__Dec________V___v_S10__piH______pma_____pmd____

      N 86032| |17 34 56.07|+12 33 36.1| 2.08| |G |  69.84|  110.08| -222.61|


__sRA___sDec___spi____spma___spmd___-%__F2____Bt_____sig___Vt_____sig__

  0.76|  0.70|  0.88|  1.02|  0.89|  0| 1.17| 2.315|0.003| 2.106|0.003|


36__B-V___sig__s_V-I__sig__s_43__Hp_____sig____Hmax__Hmin_period 52.3.4_

 | 0.155|0.003|G|0.17|0.03|C| | 2.1262|0.0005| 2.12| 2.14|       | | | |


___CCDM___56.7_58_59.0.1_62_pa____sep____sig__d(Hp)_sig__S_C_N_

17349+1234|I| 1| 1|G| | |  |   |       |     |     |    |S| |D|


    U      V      W      sU    sV    sW 

   19.7    1.2   -7.4    1.3   1.0    .7




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Updated: 4 March 1998

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