20447+2356 BKO 851
 
 
 20h 44m 41.45s +23° 56' 10.4" P.A. 13.00 sep 11.6 mag 13.70,15.20
 
 
| Coord 2000 | 20447+2356 |  | Discov num | BKO 851 |  | Comp |  |  | Coord arcsec 2000 | 20 44 41.45 +23 56 10.4 |  | 
| Date first | 1999 |  | Date last | 2015 |  | Obs | 8 |  | 
| Pa first | 14 |  | Pa last | 13.4 |  | P.A. Now (θ) | 13.4° |  | 
| Sep first | 11.6 |  | Sep last | 11.638 |  | Sep. Now (ρ) | 11.638" |  | 
| Mag pri | 13.70 |  | Mag sec | 15.20 |  | delta mag (ΔM) | 1.5 |  | Spectral class |  |  | 
| Pri motion ra | -029 |  | Sec motion ra | +020 |  | 
| Pri motion dec | -048 |  | Sec motion dec | +012 |  | 
| Notes |  |  | 
rPM=1.381
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
| Constellation | Vulpecula |  | Gaia DR2 | 1843147629825248768 |  |