18517+1331 STF2409AC

 
 
18h 51m 43.74s +13 31' 06.9" P.A. 196 sep 33.8 mag 8.46,12.96 Sp G5
 
 
Coord 2000
18517+1331
Discov num
STF2409
Comp
AC
Coord arcsec 2000
18 51 43.74 +13 31 06.9
Date first
1897
Date last
2014
Obs
8
Pa first
196
Pa last
196
P.A. Now (θ)
196°
Sep first
32.8
Sep last
33.8
Sep. Now (ρ)
33.8"
Mag pri
8.46
Mag sec
12.96
delta mag (ΔM)
4.5
Spectral class
G5 (yellow)
Pri motion ra
+010
Sec motion ra
+005
Pri motion dec
-004
Sec motion dec
-008
Notes
rPM=0.595
Nature of this double is uncertain.
 
 
18517+1331 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18517+1331 STF2409 AB 1829 2015 47 22 0.9 8.46 9.64 1.18
Show 18517+1331 STF2409 AC 1897 2014 8 196 33.8 8.46 12.96 4.50 <===
Show 18517+1331 WAL 96 AB,D 1944 1999 2 291 72.6 8.15 13.10 4.95
Quadruple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
195.9
Precise sep
33.79
Constellation
Hercules
last precise pa
195.9
last precise sep
33.79
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18517+1331 STF2409 AC 1999 5 196 33.5 8.46 10.90 G5 D 185143.74+133106.9
18517+1331 STF2409 AC 2001 7 196 33.8 8.46 10.90 G5 D 185143.74+133106.9
18517+1331 STF2409 AC 2014 8 196 33.8 8.46 12.96 G5 185143.74+133106.9

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