18555+4411 ES 1428AB

 
 
18h 55m 30.87s +44 10' 35.2" P.A. 100 sep 26.3 mag 8.68,12.71 Sp G
 
 
Coord 2000
18555+4411
Discov num
ES 1428
Comp
AB
Coord arcsec 2000
18 55 30.87 +44 10 35.2
Date first
1915
Date last
2003
Obs
3
Pa first
96
Pa last
100
P.A. Now (θ)
100°
Sep first
24.5
Sep last
26.3
Sep. Now (ρ)
26.3"
Mag pri
8.68
Mag sec
12.71
delta mag (ΔM)
4.03
Spectral class
G (yellow)
Pri motion ra
+002
Sec motion ra
+000
Pri motion dec
+017
Sec motion dec
+002
Notes
rPM=0.884
This double is not physical.
 
 
18555+4411 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 47921 18555+4411 ES 1428 AB 1915 2003 3 100 26.3 8.68 12.71 4.03 <===
Show 18555+4411 ES 1428 BC 1897 2011 5 120 2.6 13.50 13.70 0.20
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
100.1
Precise sep
26.273
Constellation
Lyra
SAO
47921
Tycho2
3131-01749-1
HD
175901
last precise pa
100.1
last precise sep
26.273
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18555+4411 ES 1428 AB 1998 2 100 26.5 8.68 13.50 G D 185530.86+441035.2
18555+4411 ES 1428 AB 2003 3 100 26.3 8.68 13.50 G D 185530.87+441035.2

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