18012-4550 I 1112 AB

 
 
18h 01m 12.50s -45° 49' 33.9" P.A. 231.00 sep 21.4 mag 7.78,12.73 Sp G6/8III
 
 
Coord 2000 18012-4550 Discov num I  1112 Comp AB Coord arcsec 2000 18 01 12.50 -45 49 33.9
Date first 1905 Date last 2015 Obs 7
Pa first 233 Pa last 230.9 P.A. Now (θ) 230.9°
Sep first 19.5 Sep last 21.438 Sep. Now (ρ) 21.438"
Mag pri 7.78 Mag sec 12.73 delta mag (ΔM) 4.95 Spectral class G6/8III (yellow)
Pri motion ra -006 Sec motion ra -022
Pri motion dec -020 Sec motion dec -032
Notes
rPM=0.515
Nature of this double is uncertain.
 
 
18012-4550 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 228625 18 01 12 -45 49 34 I 1112 AB 2015 7 231 21.4 7.78 12.73 4.95 <===
Show HD 163986 228625 18 01 12 -45 49 34 I 1112 AC 2015 6 56 20.4 7.78 11.24 3.46
Show 228625 18 01 12 -45 49 34 HJ 5005 AD 2015 11 26 26.7 7.78 9.93 2.15
Show 228625 18 01 12 -45 49 34 HJ 5005 AE 2015 7 75 32.0 7.78 13.50 5.72
Show 18 01 14 -45 49 23 I 1112 CD 2015 6 337 13.7 11.24 9.93 1.31
Quintuple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Ara SAO 228625 Tycho2 8357-03850-1 Gaia DR2 6720575506941282560
HD 163986 GC 24496