18130+4251 SLV   6AC

18h 13m 02.37s +42 51' 05.2" P.A. 130 sep 42.8 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
2017
Obs
4
Pa first
123
Pa last
130
P.A. Now (θ)
130°
Sep first
40.3
Sep last
42.8
Sep. Now (ρ)
42.8"
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 2017 19 99 30.8 10.16 10.48 0.32
Show 47311 18130+4251 SLV 6 AC 1962 2017 4 130 42.8 10.16 11.90 1.74 <===
Show 47314 18130+4251 ES 473 BC 1907 2017 6 173 22.4 10.48 11.90 1.42
Triple system
3 visible stars in this system



OTHER CATALOGS AND DESIGNATIONS

Precise pa
129.5
Precise sep
42.777
Cdsa2 id
SLV 6 AC
Constellation
Hercules
SAO
47311
Tycho2
3111-00728-1
Ra deg
18.217325
De deg
42.851444444444446
last precise pa
129.5
last precise sep
42.777




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
18130+4251 SLV 6 AC 2017 4 130 42.8 10.16 11.90 F2 N 181302.37+425105.2

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