18548+4852 BU 1255AC

 
 
18h 54m 47.17s +48 51' 35.0" P.A. 270 sep 28 mag 5.80,13.10 Sp F5V dist. 55.28 pc (180.32 l.y.)
 
 
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 47913 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
 
 
Precise pa
270
Precise sep
27.974
Constellation
Draco
SAO
47913
HIP
92822
Tycho2
3548-02530-1
HD
175824
HR
7154
BD
BD+48 2793
Distance
55.28
Distance ly
180.32
last precise pa
270
last precise sep
27.974
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18548+4852 BU 1255 AC 1960 2 259 30.6 5.80 13.10 F5V D 185447.17+485135.0
18548+4852 BU 1255 AC 2003 3 270 28.0 5.80 13.10 F5V D 185447.17+485135.0

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