18548+4852 BU 1255AC

 
 
18H 54M 47.17S +48 51' 35.0" P.A. 270 SEP 28 MAG 5.80,13.10 SP F5V
 
 
Coord 2000
18548+4852
Discov num
BU 1255
Comp
AC
Coord arcsec 2000
18 54 47.17 +48 51 35.0
Date first
1911
Date last
2003
Obs
3
Pa first
250
Pa last
270
P.A. Now (θ)
270°
Sep first
34.7
Sep last
28.0
Sep. Now (ρ)
28"
Mag pri
5.80
Mag sec
13.10
delta mag (ΔM)
7.3
Spectral class
F5V (yellow-white)
Pri motion ra
-050
Sec motion ra
Pri motion dec
-134
Sec motion dec
Notes
U (Proper motion indicates non-physical)
This double is not physical.
 
 
18548+4852 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 47913 18548+4852 BU 1255 AB 1891 1969 9 108 1.1 5.80 12.60 6.80
Show 18548+4852 BU 1255 AC 1911 2003 3 270 28.0 5.80 13.10 7.30 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Draco
last precise pa
270
last precise sep
27.974