21089+2417 OSO 142 AD

 
 
21h 08m 51.92s +24° 17' 02.7" P.A. 32.00 sep 23.1 mag 13.32,15.90
 
 
Coord 2000 21089+2417 Discov num OSO 142 Comp AD Coord arcsec 2000 21 08 51.92 +24 17 02.7
Date first 1994 Date last 2014 Obs 6
Pa first 30 Pa last 32.3 P.A. Now (θ) 32.3°
Sep first 18.6 Sep last 23.142 Sep. Now (ρ) 23.142"
Mag pri 13.32 Mag sec 15.90 delta mag (ΔM) 2.58 Spectral class
Pri motion ra -156 Sec motion ra
Pri motion dec -187 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
21089+2417 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 21 08 52 +24 17 03 OSO 142 AB 2014 8 46 17.4 13.32 17.70 4.38
Show 21 08 52 +24 17 03 OSO 142 AC 2014 7 308 16.7 13.32 18.00 4.68
Show 21 08 52 +24 17 03 OSO 142 AD 2014 6 32 23.1 13.32 15.90 2.58 <===
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Vulpecula Gaia DR2 1841001108246819328