20171+1641 BPM 2087
 
 
 20h 17m 05.61s +16° 40' 34.3" P.A. 45.00 sep 37.0 mag 14.99,15.18
 
 
| Coord 2000 | 20171+1641 |  | Discov num | BPM2087 |  | Comp |  |  | Coord arcsec 2000 | 20 17 05.61 +16 40 34.3 |  | 
| Date first | 1995 |  | Date last | 2015 |  | Obs | 9 |  | 
| Pa first | 45 |  | Pa last | 45.3 |  | P.A. Now (θ) | 45.3° |  | 
| Sep first | 36.7 |  | Sep last | 36.952 |  | Sep. Now (ρ) | 36.952" |  | 
| Mag pri | 14.99 |  | Mag sec | 15.18 |  | delta mag (ΔM) | 0.19 |  | Spectral class |  |  | 
| Pri motion ra | -067 |  | Sec motion ra | -005 |  | 
| Pri motion dec | -116 |  | Sec motion dec | -024 |  | 
| Notes | N 
U 
 (See Notes, Proper motion indicates non-physical) |  | 
rPM=0.828
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
| Constellation | Sagitta |  | Gaia DR2 | 1809063971958140928 |  |