20231+4047 J 787 CD

20h 23m 08.07s +40° 46' 51.9" P.A. 292.00 sep 25.3 mag 13.00,12.40

Coord 2000 20231+4047 Discov num J   787 Comp CD Coord arcsec 2000 20 23 08.07 +40 46 51.9
Date first 1917 Date last 2015 Obs 9
Pa first 289 Pa last 292.4 P.A. Now (θ) 292.4°
Sep first 24.6 Sep last 25.285 Sep. Now (ρ) 25.285"
Mag pri 13.00 Mag sec 12.40 delta mag (ΔM) 0.6 Spectral class
Pri motion ra +008 Sec motion ra +001
Pri motion dec -011 Sec motion dec -007
Notes N (See Notes)




rPM=0.593

Nature of this double is uncertain.



20231+4047 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 23 07 +40 46 55 J 787 AB 2003 4 165 2.6 10.50 11.40 0.90
Show 20 23 07 +40 46 55 J 787 AC 2015 5 112 9.5 10.50 13.00 2.50
Show 20 23 07 +40 46 55 J 787 AD 2015 5 293 15.8 10.50 12.40 1.90
Show 20 23 08 +40 46 52 J 787 CD 2015 9 292 25.3 13.00 12.40 0.60 <===


Quadruple system
4 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Constellation Cygnus Gaia DR2 2067570283905719296