18217+4039 UC 3559

 
 
18h 21m 43.91s +40° 38' 30.1" P.A. 248.00 sep 48.2 mag 10.80,15.65
 
 
Coord 2000 18217+4039 Discov num UC 3559 Comp Coord arcsec 2000 18 21 43.91 +40 38 30.1
Date first 1999 Date last 2015 Obs 10
Pa first 248 Pa last 247.7 P.A. Now (θ) 247.7°
Sep first 48.2 Sep last 48.213 Sep. Now (ρ) 48.213"
Mag pri 10.80 Mag sec 15.65 delta mag (ΔM) 4.85 Spectral class
Pri motion ra -030 Sec motion ra -029
Pri motion dec -050 Sec motion dec -049
Notes V (Proper motion indicates physical)
rPM=0.024 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Lyra Tycho2 3108-01602-1 Gaia DR2 2109819950208290560