18181+2318 BUP 181AC

 
 
18h 18m 07.72s +23 17' 49.0" P.A. 125 sep 154.1 mag 6.68,10.04 Sp K5 dist. 497.51 pc (1622.88 l.y.)
 
 
Coord 2000
18181+2318
Discov num
BUP 181
Comp
AC
Coord arcsec 2000
18 18 07.72 +23 17 49.0
Date first
1878
Date last
2012
Obs
15
Pa first
126
Pa last
125
P.A. Now (θ)
125°
Sep first
156.3
Sep last
154.1
Sep. Now (ρ)
154.1"
Mag pri
6.68
Mag sec
10.04
delta mag (ΔM)
3.36
Spectral class
K5 (yellow-orange)
Pri motion ra
+012
Sec motion ra
-008
Pri motion dec
-012
Sec motion dec
+002
Notes
rPM=1.439
This double is not physical.
 
 
18181+2318 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 85906 18181+2318 BUP 181 AB 1894 2001 7 222 37.9 6.68 11.50 4.82
Show 85906 18181+2318 BUP 181 AC 1878 2012 15 125 154.1 6.68 10.04 3.36 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
125.3
Precise sep
154.05
Constellation
Hercules
SAO
85906
HIP
89683
Tycho2
2093-00636-1
HD
168323
HR
6854
BD
BD+23 3299
Distance
497.51
Distance ly
1622.88
last precise pa
125.3
last precise sep
154.05
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18181+2318 BUP 181 AC 2002 13 126 154.1 6.68 10.04 K5 D 181807.72+231749.0
18181+2318 BUP 181 AC 2012 15 125 154.1 6.68 10.04 K5 D 181807.72+231749.0

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