18528+3125 A   257CD

 
 
18H 52M 45.39S +31 25' 40.4" P.A. 260 SEP 0.5 MAG 11.80,12.10
 
 
Coord 2000
18528+3125
Discov num
A   257
Comp
CD
Coord arcsec 2000
18 52 45.39 +31 25 40.4
Date first
1910
Date last
1980
Obs
4
Pa first
263
Pa last
260
P.A. Now (θ)
260°
Sep first
0.7
Sep last
0.5
Sep. Now (ρ)
0.5"
Mag pri
11.80
Mag sec
12.10
delta mag (ΔM)
0.3
Spectral class
Pri motion ra
-001
Sec motion ra
-001
Pri motion dec
+004
Sec motion dec
+004
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 67506 18528+3125 A 257 AB 1901 1929 3 107 1.0 8.46 13.50 5.04
Show 67506 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
 
 
Constellation
Lyra
Tycho2
2638-00842-1
last precise pa
259.9
last precise sep
0.53