18091+3101 BKO  51BC

 
 
18h 09m 02.98s +31 02' 06.1" P.A. 206 sep 19.2 mag 11.08,13.20
 
 
Coord 2000
18091+3101
Discov num
BKO  51
Comp
BC
Coord arcsec 2000
18 09 02.98 +31 02 06.1
Date first
1998
Date last
2002
Obs
3
Pa first
206
Pa last
206
P.A. Now (θ)
206°
Sep first
19.2
Sep last
19.2
Sep. Now (ρ)
19.2"
Mag pri
11.08
Mag sec
13.20
delta mag (ΔM)
2.12
Spectral class
Pri motion ra
+014
Sec motion ra
+000
Pri motion dec
-009
Sec motion dec
+011
Notes
N (See Notes)
rPM=1.467
This double is not physical.
 
 
18091+3101 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show T Her 66680 18091+3101 BLL 31 AB 1877 2002 14 321 65.0 10.04 11.08 1.04
Show 18091+3101 BKO 51 BC 1998 2002 3 206 19.2 11.08 13.20 2.12 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
206.3
Precise sep
19.18
Constellation
Hercules
Tycho2
2622-01164-1
last precise pa
206.3
last precise sep
19.18
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18091+3101 BKO 51 BC 2002 2 206 19.2 11.08 13.20 D 180902.98+310206.1

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