21023+3931 WRD 4 AG

 
 
21h 02m 20.95s +39° 30' 32.5" P.A. 230.00 sep 95.0 mag 6.62,13.50 Sp K3II-III dist. 223.71 pc (729.74 l.y.)
 
 
Coord 2000 21023+3931 Discov num WRD   4 Comp AG Coord arcsec 2000 21 02 20.95 +39 30 32.5
Date first 1875 Date last 1875 Obs 1
Pa first 230 Pa last 230 P.A. Now (θ) 230°
Sep first 95.0 Sep last 95 Sep. Now (ρ) 95"
Mag pri 6.62 Mag sec 13.50 delta mag (ΔM) 6.88 Spectral class K3II-III (yellow-orange)
Pri motion ra +002 Sec motion ra
Pri motion dec +001 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
21023+3931 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 200465 70818 21 02 21 +39 30 32 H 4 113 AB 2018 37 299 18.9 6.62 9.49 2.87
Show 70818 21 02 21 +39 30 32 H 4 113 AC 2012 10 248 26.7 6.62 12.50 5.88
Show 70818 21 02 21 +39 30 32 SMY 6 AD 2015 8 141 57.0 6.62 12.61 5.99
Show 70818 21 02 21 +39 30 32 SMY 6 AE 2018 10 87 95.7 6.62 10.88 4.26
Show 70818 21 02 21 +39 30 32 WRD 4 AF 2015 5 223 101.8 6.62 12.45 5.83
Show 70818 21 02 21 +39 30 32 WRD 4 AG 1875 1 230 95.0 6.62 13.50 6.88 <===
Show 70818 21 02 21 +39 30 32 FYM 114 AI 2012 3 277 41.1 6.62 15.20 8.58
Show 21 02 29 +39 30 38 WRD 4 ED 2015 7 230 77.7 10.88 12.61 1.73
Show 21 02 29 +39 30 38 WRD 4 EH 2015 9 159 37.4 10.88 12.84 1.96
Ninefold system
9 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus SAO 70818 HIP 103822 Tycho2 3172-01764-1
Gaia DR2 1872982701745880320 HD 200465 BD BD+38 4321 Distance 223.71
Distance ly 729.74