18509+2058 COU 317 AB

18h 50m 55.84s +20° 57' 51.3" P.A. 94.00 sep 1.5 mag 10.83,11.60 Sp A0

Coord 2000 18509+2058 Discov num COU 317 Comp AB Coord arcsec 2000 18 50 55.84 +20 57 51.3
Date first 1968 Date last 2013 Obs 7
Pa first 99 Pa last 93.8 P.A. Now (θ) 93.8°
Sep first 1.2 Sep last 1.513 Sep. Now (ρ) 1.513"
Mag pri 10.83 Mag sec 11.60 delta mag (ΔM) 0.77 Spectral class A0 (white)
Pri motion ra -005 Sec motion ra
Pri motion dec -010 Sec motion dec
Notes




Nature of this double is uncertain.



18509+2058 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 18 50 56 +20 57 51 COU 317 AB 2013 7 94 1.5 10.83 11.60 0.77 <===
Show 18 50 56 +20 57 51 COU 317 AC 2015 11 2 17.3 10.83 10.88 0.05


Triple system
3 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Constellation Hercules Gaia DR2 4531188508725136512