18439+1601 OSO 103AF

 
 
18h 43m 52.50s +16 00' 34.2" P.A. 233 sep 17.4 mag 12.61,13.30
 
 
Coord 2000
18439+1601
Discov num
OSO 103
Comp
AF
Coord arcsec 2000
18 43 52.50 +16 00 34.2
Date first
1995
Date last
2001
Obs
5
Pa first
231
Pa last
233
P.A. Now (θ)
233°
Sep first
18.9
Sep last
17.4
Sep. Now (ρ)
17.4"
Mag pri
12.61
Mag sec
13.30
delta mag (ΔM)
0.69
Spectral class
Pri motion ra
-129
Sec motion ra
-003
Pri motion dec
-262
Sec motion dec
+005
Notes
N (See Notes)
rPM=1.011
This double is not physical.
 
 
18439+1601 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18439+1601 OSO 103 AB 1995 1996 3 121 5.0 12.61 18.30 5.69
Show 18439+1601 OSO 103 AC 1995 1999 4 44 8.9 12.61 17.00 4.39
Show 18439+1601 OSO 103 AD 1995 1999 4 25 14.1 12.61 17.80 5.19
Show 18439+1601 OSO 103 AE 1995 2001 5 150 16.4 12.61 15.00 2.39
Show 18439+1601 OSO 103 AF 1995 2001 5 233 17.4 12.61 13.30 0.69 <===
Sextuple system
6 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
232.9
Precise sep
17.385
Constellation
Hercules
last precise pa
232.9
last precise sep
17.385
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18439+1601 OSO 103 AF 1999 4 232 17.8 12.61 13.30 N D 184352.50+160034.2
18439+1601 OSO 103 AF 2001 5 233 17.2 12.61 13.30 N D 184352.50+160034.2

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