Running No.: 1497  
CNS designation: Gl 721
HD: 172167
HIP: 91262
BD: +38° 3238
YPC: 4293.00
RA (2000): 18 36 57
Dec (2000): +38 47.1
RA (1950): 18 35 15
Dec (1950): +38 44.2
RA (1900): 18 33 33
Dec (1900): +38 41.5
µ(RA): .201 "/yr µ(Dec): .284 "/yr
Total Proper Motion: 0.348 "/yr 35.2°
V : .03
B-V: .00
U-B: -.01
V-Rc: -0.01
R-Ic: 0.00
Spectral Type: A0 V
Trig. Par.: 130.0 ± 1.6 mas 6 Obs.
Res. Par. (Trig. Par.): 130.0 ± 1.6 mas
Distance: 7.69 ± .09 pc
MV : .60
M Qual.: a
RV: - 13.5 km/s
RV Qual.: a
Space Velocity:
U: -016 km/s
V: -006 km/s
W: -008 km/s
Additional Designations: ALF Lyr
Notes: pi(MAP) .1301 +- .0009 ApJ450,364-95
Hipp P__HIP_H2___RA____J2000__Dec________V___v_S10__piH______pma_____pmd____ N 91262| |18 36 56.34|+38 47 1.3| 0.03|1|G | 128.93| 201.03| 287.47| __sRA___sDec___spi____spma___spmd___-%__F2____Bt_____sig___Vt_____sig__ 0.48| 0.47| 0.55| 0.57| 0.60| 2| 1.31| | | | | 36__B-V___sig__s_V-I__sig__s_43__Hp_____sig____Hmax__Hmin_period 52.3.4_ |-0.001|0.005|G|-.01|0.02|A| | 0.0868|0.0021| 0.07| 0.13| |U|2|C| ___CCDM___56.7_58_59.0.1_62_pa____sep____sig__d(Hp)_sig__S_C_N_ 18369+3847|I| 1| 1| | |S| | | | | | |S| | | U V W sU sV sW -16.0 -6.1 -7.5 .3 .6 .2
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