18294+4158 ES 1559 BC

18h 29m 30.86s +41° 57' 41.1" P.A. 188.00 sep 1.7 mag 11.45,12.12

Coord 2000 18294+4158 Discov num ES 1559 Comp BC Coord arcsec 2000 18 29 30.86 +41 57 41.1
Date first 1916 Date last 2021 Obs 6
Pa first 181 Pa last 187.7 P.A. Now (θ) 187.7°
Sep first 1.9 Sep last 1.71 Sep. Now (ρ) 1.71"
Mag pri 11.45 Mag sec 12.12 delta mag (ΔM) 0.67 Spectral class
Pri motion ra +005 Sec motion ra +005
Pri motion dec -002 Sec motion dec -002
Notes




Nature of this double is uncertain.



18294+4158 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 18 29 24 +41 57 36 ES 1559 AB 2021 8 87 77.1 9.25 11.45 2.20
Show 18 29 31 +41 57 41 ES 1559 BC 2021 6 188 1.7 11.45 12.12 0.67 <===


Triple system
3 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Constellation Lyra Tycho2 3112-01775-1 Gaia DR2 2111302229321513984