18176+0333 BAL 2487 BC

18h 17m 34.35s +03° 32' 58.1" P.A. 168.00 sep 31.8 mag 12.06,11.85

Coord 2000 18176+0333 Discov num BAL2487 Comp BC Coord arcsec 2000 18 17 34.35 +03 32 58.1
Date first 1910 Date last 2018 Obs 7
Pa first 171 Pa last 167.9 P.A. Now (θ) 167.9°
Sep first 37.1 Sep last 31.8 Sep. Now (ρ) 31.8"
Mag pri 12.06 Mag sec 11.85 delta mag (ΔM) 0.21 Spectral class
Pri motion ra +003 Sec motion ra -017
Pri motion dec -022 Sec motion dec -008
Notes




rPM=1.1

This double is not physical.



18176+0333 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 18 17 35 +03 32 48 BAL 2487 AB 2018 21 335 11.2 11.85 12.06 0.21
Show 18 17 34 +03 32 58 BAL 2487 BC 2018 7 168 31.8 12.06 11.85 0.21 <===


Triple system
3 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Constellation Ophiuchus Tycho2 0436-00156-1 Gaia DR2 4278228193544238848