18130+4251 ES  473AB

 
 
18h 13m 02.37s +42 51' 05.2" P.A. 99 sep 30.8 mag 10.16,10.48 Sp F2
 
 
Coord 2000
18130+4251
Discov num
ES  473
Comp
AB
Coord arcsec 2000
18 13 02.37 +42 51 05.2
Date first
1893
Date last
2017
Obs
19
Pa first
102
Pa last
99
P.A. Now (θ)
99°
Sep first
32.0
Sep last
30.8
Sep. Now (ρ)
30.8"
Mag pri
10.16
Mag sec
10.48
delta mag (ΔM)
0.32
Spectral class
F2 (yellow-white)
Pri motion ra
+003
Sec motion ra
-004
Pri motion dec
-005
Sec motion dec
+007
Notes
N (See Notes)
rPM=1.723
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
99.1
Precise sep
30.781
Constellation
Hercules
SAO
47311
Tycho2
3111-00728-1
last precise pa
99.1
last precise sep
30.781
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18130+4251 ES 473 AB 2005 14 99 30.6 10.16 10.48 F2 N D 181302.37+425105.2
18130+4251 ES 473 AB 2017 19 99 30.8 10.16 10.48 F2 N 181302.37+425105.2

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