20102+1723 BPM 2040 AB

 
 
20h 10m 10.96s +17 22' 45.5" P.A. 78.00 sep 72.5 mag 14.76,14.95
 
 
Coord 2000 20102+1723 Discov num BPM2040 Comp AB Coord arcsec 2000 20 10 10.96 +17 22 45.5
Date first 1994 Date last 2015 Obs 8
Pa first 78 Pa last 78.3 P.A. Now (θ) 78.3°
Sep first 72.4 Sep last 72.494 Sep. Now (ρ) 72.494"
Mag pri 14.76 Mag sec 14.95 delta mag (ΔM) 0.19 Spectral class
Pri motion ra -012 Sec motion ra +005
Pri motion dec -016 Sec motion dec -008
Notes N V (See Notes, Proper motion indicates physical)
rPM=0.939
This double is physical.
 
 
20102+1723 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 10 11 +17 22 46 BPM 2040 AB 2015 8 78 72.5 14.76 14.95 0.19 <===
Show 20 10 16 +17 23 00 BPM 2041 BC 2015 8 175 111.1 14.95 15.74 0.79
Show 20 10 17 +17 21 09 BPM 2042 CD 2015 8 104 103.5 15.74 15.57 0.17
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sagitta Gaia DR2 1809760546941750656