18502+1339 BPM 857 AB

 
 
18h 50m 13.51s +13° 39' 19.1" P.A. 257.00 sep 44.9 mag 15.02,15.40
 
 
Coord 2000 18502+1339 Discov num BPM 857 Comp AB Coord arcsec 2000 18 50 13.51 +13 39 19.1
Date first 1991 Date last 2015 Obs 4
Pa first 257 Pa last 256.8 P.A. Now (θ) 256.8°
Sep first 44.5 Sep last 44.899 Sep. Now (ρ) 44.899"
Mag pri 15.02 Mag sec 15.40 delta mag (ΔM) 0.38 Spectral class
Pri motion ra -003 Sec motion ra -024
Pri motion dec -012 Sec motion dec -016
Notes N V (See Notes, Proper motion indicates physical)
rPM=0.741
This double is physical.
 
 
18502+1339 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 18 50 14 +13 39 19 BPM 857 AB 2015 4 257 44.9 15.02 15.40 0.38 <===
Show 18 50 10 +13 39 09 BPM 857 BC 2015 3 43 3.4 15.70 15.70 0.00
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Hercules Gaia DR2 4507008186456752256