21252+1828 COU 430 AB (HD 203991)

 
 
21h 25m 09.48s +18° 27' 45.4" P.A. 229.00 sep 0.8 mag 7.95,9.41 Sp A0 dist. 177.3 pc (578.35 l.y.)
 
 
Coord 2000 21252+1828 Discov num COU 430 Comp AB Coord arcsec 2000 21 25 09.48 +18 27 45.4
Date first 1969 Date last 2018 Obs 24
Pa first 239 Pa last 229.2 P.A. Now (θ) 229.2°
Sep first 0.5 Sep last 0.79 Sep. Now (ρ) 0.79"
Mag pri 7.95 Mag sec 9.41 delta mag (ΔM) 1.46 Spectral class A0 (white)
Pri motion ra +009 Sec motion ra +009
Pri motion dec -005 Sec motion dec -005
Notes
Nature of this double is uncertain.
 
 
21252+1828 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 203991 107115 21 25 09 +18 27 45 COU 430 AB 2018 24 229 0.8 7.95 9.41 1.46 <===
Show 107115 21 25 09 +18 27 45 ARY 70 AC 2015 16 98 63.0 7.74 9.96 2.22
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 203991 Constellation Pegasus SAO 107115 HIP 105753
Tycho2 1667-00465-1 Gaia DR2 1785368736161600128 HD 203991 GC 29997
BD BD+17 4577 Distance 177.3 Distance ly 578.35