03174+0739 BU 1039 AC (HD 20439)

 
 
03h 17m 26.29s +07° 39' 21.0" P.A. 38.00 sep 156.0 mag 7.44,7.82 Sp F9IV-V dist. 41.75 pc (136.19 l.y.)
 
 
Coord 2000 03174+0739 Discov num BU 1039 Comp AC Coord arcsec 2000 03 17 26.29 +07 39 21.0
Date first 1897 Date last 2015 Obs 19
Pa first 37 Pa last 37.5 P.A. Now (θ) 37.5°
Sep first 156.0 Sep last 155.972 Sep. Now (ρ) 155.972"
Mag pri 7.44 Mag sec 7.82 delta mag (ΔM) 0.38 Spectral class F9IV-V (yellow-white)
Pri motion ra +170 Sec motion ra +167
Pri motion dec -006 Sec motion dec -008
Notes N T (See Notes, Parallax indicates physical)
rPM=0.021 (< 0.3, Physical double)
This double is physical.
 
 
03174+0739 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 111104 03 17 26 +07 39 21 BU 1039 AB 2002 3 201 2.5 7.39 13.40 6.01
Show HD 20439 111104 03 17 26 +07 39 21 BU 1039 AC 2015 19 38 156.0 7.44 7.82 0.38 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 20439 Constellation Cetus SAO 111104 HIP 15310
Tycho2 0649-00766-1 Gaia DR2 10584899657116672 HD 20439 BD BD+07 494
Distance 41.75 Distance ly 136.19