18156+4417 ES 1420 AB

18h 15m 33.41s +44° 16' 59.6" P.A. 66.00 sep 8.3 mag 10.22,11.40 Sp A0

Coord 2000 18156+4417 Discov num ES 1420 Comp AB Coord arcsec 2000 18 15 33.41 +44 16 59.6
Date first 1893 Date last 2016 Obs 15
Pa first 66 Pa last 65.8 P.A. Now (θ) 65.8°
Sep first 8.5 Sep last 8.349 Sep. Now (ρ) 8.349"
Mag pri 10.22 Mag sec 11.40 delta mag (ΔM) 1.18 Spectral class A0 (white)
Pri motion ra -003 Sec motion ra -005
Pri motion dec +013 Sec motion dec +012
Notes




rPM=0.168 (< 0.3, Physical double)

This double is physical.



18156+4417 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 18 15 33 +44 16 60 ES 1420 AB 2016 15 66 8.3 10.22 11.40 1.18 <===
Show 18 15 33 +44 16 60 ES 1420 AC 2015 10 9 14.6 10.22 14.50 4.28


Triple system
3 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Constellation Lyra Tycho2 3115-01661-1 Gaia DR2 2114919382057912832