18528+3125 A   257AB

 
 
18h 52m 49.18s +31 24' 33.7" P.A. 107 sep 1 mag 8.46,13.50 Sp F
 
 
Coord 2000
18528+3125
Discov num
A   257
Comp
AB
Coord arcsec 2000
18 52 49.18 +31 24 33.7
Date first
1901
Date last
1929
Obs
3
Pa first
111
Pa last
107
P.A. Now (θ)
107°
Sep first
0.9
Sep last
1.0
Sep. Now (ρ)
1"
Mag pri
8.46
Mag sec
13.50
delta mag (ΔM)
5.04
Spectral class
F (yellow-white)
Pri motion ra
+001
Sec motion ra
Pri motion dec
+002
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
18528+3125 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18528+3125 A 257 AB 1901 1929 3 107 1.0 8.46 13.50 5.04 <===
Show 18528+3125 A 257 A,CD 1893 2002 10 324 82.5 8.46 11.22 2.76
Show 18528+3125 A 257 CD 1910 1980 4 260 0.5 11.80 12.10 0.30
Show 18528+3125 A 257 CD,EF 1913 2010 5 225 28.4 11.10 13.40 2.30
Show 18528+3125 A 257 EF 1998 2010 4 234 5.9 13.60 15.40 1.80
Sextuple system
8 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
106.8
Precise sep
0.95
Cdsa2 id
A 257 AB
Constellation
Lyra
Ra deg
18.88032777777778
De deg
31.40936111111111
last precise pa
106.8
last precise sep
0.95
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18528+3125 A 257 AB 1929 3 107 1.0 8.46 13.50 F N 185249.18+312433.7

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