18548+4852 BU 1255AB

 
 
18h 54m 47.17s +48 51' 35.0" P.A. 108 sep 1.1 mag 5.80,12.60 Sp F5V dist. 55.28 pc (180.32 l.y.)
 
 
Coord 2000
18548+4852
Discov num
BU 1255
Comp
AB
Coord arcsec 2000
18 54 47.17 +48 51 35.0
Date first
1891
Date last
1969
Obs
9
Pa first
88
Pa last
108
P.A. Now (θ)
108°
Sep first
1.6
Sep last
1.1
Sep. Now (ρ)
1.1"
Mag pri
5.80
Mag sec
12.60
delta mag (ΔM)
6.8
Spectral class
F5V (yellow-white)
Pri motion ra
-060
Sec motion ra
Pri motion dec
-133
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
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
108.4
Precise sep
1.05
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
108.4
last precise sep
1.05
 
 
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 AB 1969 9 108 1.1 5.80 12.60 F5V D 185447.17+485135.0

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