18022+2058 BUP 178AC

 
 
18h 02m 10.03s +20 58' 21.6" P.A. 154 sep 146 mag 8.27,8.83 Sp A0 dist. 178.57 pc (582.5 l.y.)
 
 
Coord 2000
18022+2058
Discov num
BUP 178
Comp
AC
Coord arcsec 2000
18 02 10.03 +20 58 21.6
Date first
1894
Date last
2013
Obs
16
Pa first
155
Pa last
154
P.A. Now (θ)
154°
Sep first
145.4
Sep last
146.0
Sep. Now (ρ)
146"
Mag pri
8.27
Mag sec
8.83
delta mag (ΔM)
0.56
Spectral class
A0 (white)
Pri motion ra
+002
Sec motion ra
-018
Pri motion dec
+009
Sec motion dec
-002
Notes
rPM=1.26
This double is not physical.
 
 
18022+2058 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 85666 18022+2058 BUP 178 AB 1894 2003 13 282 146.2 8.27 10.06 1.79
Show 85666 18022+2058 BUP 178 AC 1894 2013 16 154 146.0 8.27 8.83 0.56 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
154.1
Precise sep
146.01
Constellation
Hercules
SAO
85666
HIP
88313
Tycho2
1566-00236-1
HD
164825
BD
BD+20 3646
Distance
178.57
Distance ly
582.5
last precise pa
154.1
last precise sep
146.01
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18022+2058 BUP 178 AC 2003 14 156 146.2 8.27 8.83 D 180210.03+205821.6
18022+2058 BUP 178 AC 2013 16 154 146.0 8.27 8.83 A0 180210.03+205821.6

If you need more information about this double, apply for a data request form to the WDS.