18502+1339 BPM 857BC

 
 
18h 50m 10.49s +13 39' 08.6" P.A. 43 sep 3.4 mag 15.70,15.70
 
 
Coord 2000
18502+1339
Discov num
BPM 857
Comp
BC
Coord arcsec 2000
18 50 10.49 +13 39 08.6
Date first
1999
Date last
2015
Obs
3
Pa first
42
Pa last
43
P.A. Now (θ)
43°
Sep first
3.6
Sep last
3.4
Sep. Now (ρ)
3.4"
Mag pri
15.70
Mag sec
15.70
delta mag (ΔM)
0
Spectral class
Pri motion ra
-024
Sec motion ra
Pri motion dec
-016
Sec motion dec
Notes
N V (See Notes, Proper motion indicates physical)
This double is physical.
 
 
18502+1339 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18502+1339 BPM 857 AB 1991 2015 4 257 44.9 15.02 15.40 0.38
Show 18502+1339 BPM 857 BC 1999 2015 3 43 3.4 15.70 15.70 0.00 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
43.3
Precise sep
3.375
Constellation
Hercules
Gaia DR2
17099931136
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18502+1339 BPM 857 BC 1999 1 43 3.5 15.80 15.80 NV 185010.49+133908.6
18502+1339 BPM 857 BC 2001 2 44 3.4 15.80 15.80 NV 185010.49+133908.6
18502+1339 BPM 857 BC 2015 3 43 3.4 15.70 15.70 NV 185010.49+133908.6

If you need more information about this double, apply for a data request form to the WDS.