18130+4251 SLV   6AC

 
 
18h 13m 02.37s +42 51' 05.2" P.A. 127 sep 42.1 mag 10.16,11.90 Sp F2
 
 
Coord 2000
18130+4251
Discov num
SLV   6
Comp
AC
Coord arcsec 2000
18 13 02.37 +42 51 05.2
Date first
1962
Date last
2003
Obs
3
Pa first
123
Pa last
127
P.A. Now (θ)
127°
Sep first
40.3
Sep last
42.1
Sep. Now (ρ)
42.1"
Mag pri
10.16
Mag sec
11.90
delta mag (ΔM)
1.74
Spectral class
F2 (yellow-white)
Pri motion ra
+003
Sec motion ra
-006
Pri motion dec
-005
Sec motion dec
-102
Notes
N (See Notes)
rPM=0.953
This double is not physical.
 
 
18130+4251 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 47311 18130+4251 ES 473 AB 1893 2005 18 99 30.6 10.16 10.48 0.32
Show 47311 18130+4251 SLV 6 AC 1962 2003 3 127 42.1 10.16 11.90 1.74 <===
Show 47314 18130+4251 ES 473 BC 1907 2003 5 172 20.9 10.48 11.90 1.42
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
127.4
Precise sep
42.077
Constellation
Hercules
SAO
47311
Tycho2
3111-00728-1
last precise pa
127.4
last precise sep
42.077
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18130+4251 SLV 6 AC 1998 2 127 41.9 10.16 11.70 F2 D 181302.37+425105.2
18130+4251 SLV 6 AC 2003 3 127 42.1 10.16 11.90 F2 N D 181302.37+425105.2

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