18580+4407 A   587AB

 
 
18h 57m 59.07s +44 06' 33.9" P.A. 308 sep 42.5 mag 9.55,10.54 Sp K2
 
 
Coord 2000
18580+4407
Discov num
A   587
Comp
AB
Coord arcsec 2000
18 57 59.07 +44 06 33.9
Date first
1894
Date last
2004
Obs
13
Pa first
305
Pa last
308
P.A. Now (θ)
308°
Sep first
40.5
Sep last
42.5
Sep. Now (ρ)
42.5"
Mag pri
9.55
Mag sec
10.54
delta mag (ΔM)
0.99
Spectral class
K2 (yellow-orange)
Pri motion ra
-006
Sec motion ra
-009
Pri motion dec
-014
Sec motion dec
+007
Notes
rPM=1.393
This double is not physical.
 
 
18580+4407 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 47954 18580+4407 A 587 AB 1894 2004 13 308 42.5 9.55 10.54 0.99 <===
Show 47954 18580+4407 A 587 BC 1903 2005 9 189 1.9 10.61 11.54 0.93
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
308.2
Precise sep
42.46
Constellation
Lyra
SAO
47954
Tycho2
3131-01870-1
last precise pa
308.2
last precise sep
42.46
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18580+4407 A 587 AB 2004 12 308 42.5 9.55 10.54 K2 D 185759.07+440633.9

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