03124-4425 HJ 3556 AB,C (HD 20121)

 
 
03h 12m 25.68s -44° 25' 10.8" P.A. 188.00 sep 3.7 mag 6.42,8.76 Sp F7III dist. 42.5 pc (138.64 l.y.)
 
 
Coord 2000 03124-4425 Discov num HJ 3556 Comp AB,C Coord arcsec 2000 03 12 25.68 -44 25 10.8
Date first 1848 Date last 2017 Obs 68
Pa first 238 Pa last 187.8 P.A. Now (θ) 187.8°
Sep first 1.8 Sep last 3.667 Sep. Now (ρ) 3.667"
Mag pri 6.42 Mag sec 8.76 delta mag (ΔM) 2.34 Spectral class F7III (yellow-white)
Pri motion ra +092 Sec motion ra +087
Pri motion dec -006 Sec motion dec -018
Notes N V (See Notes, Proper motion indicates physical)
rPM=0.141 (< 0.3, Physical double)
This double is physical.
 
 
03124-4425 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 216209 03 12 26 -44 25 11 JC 8 AB 2021 125 90 0.1 6.42 7.36 0.94 Y
Show HD 20121 216209 03 12 26 -44 25 11 HJ 3556 AB,C 2017 68 188 3.7 6.42 8.76 2.34 <===
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 20121 Constellation Eridanus SAO 216209 HIP 14913
Tycho2 7567-01177-1 Gaia DR2 4850405974392311168 HD 20121 HR 968
CD CD-44 1025 CP CP-44 338 FK5 2228 Distance 42.5
Distance ly 138.64