18054+3029 SLE 131BC

 
 
18h 05m 31.62s +30 28' 35.8" P.A. 218 sep 15 mag 11.69,12.02
 
 
Coord 2000
18054+3029
Discov num
SLE 131
Comp
BC
Coord arcsec 2000
18 05 31.62 +30 28 35.8
Date first
1900
Date last
2017
Obs
9
Pa first
218
Pa last
218
P.A. Now (θ)
218°
Sep first
15.0
Sep last
15.0
Sep. Now (ρ)
15"
Mag pri
11.69
Mag sec
12.02
delta mag (ΔM)
0.33
Spectral class
Pri motion ra
-003
Sec motion ra
-004
Pri motion dec
+006
Sec motion dec
+007
Notes
rPM=0.175 (< 0.3, Physical double)
This double is physical.
 
 
18054+3029 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18054+3029 SLE 131 AB 1900 2017 10 204 52.5 10.29 11.69 1.40
Show 18054+3029 SLE 131 AC 1900 2017 9 207 67.2 10.29 12.02 1.73
Show 18054+3029 SLE 131 BC 1900 2017 9 218 15.0 11.69 12.02 0.33 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
217.5
Precise sep
15.043
Constellation
Hercules
Tycho2
2621-02290-1
last precise pa
217.5
last precise sep
15.043
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18054+3029 SLE 131 BC 2002 7 217 15.2 11.69 12.02 D 180531.62+302835.8
18054+3029 SLE 131 BC 2017 9 218 15.0 11.69 12.02 180531.62+302835.8

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