18072-1854 A  2259BC

 
 
18h 07m 12.95s -18 54' 21.2" P.A. 208 sep 1.2 mag 10.74,11.50 Sp K2/3III: dist. 208.77 pc (681.01 l.y.)
 
 
Coord 2000
18072-1854
Discov num
A  2259
Comp
BC
Coord arcsec 2000
18 07 12.95 -18 54 21.2
Date first
1910
Date last
1991
Obs
11
Pa first
220
Pa last
208
P.A. Now (θ)
208°
Sep first
0.9
Sep last
1.2
Sep. Now (ρ)
1.2"
Mag pri
10.74
Mag sec
11.50
delta mag (ΔM)
0.76
Spectral class
K2/3III: (yellow-orange)
Pri motion ra
+029
Sec motion ra
+027
Pri motion dec
-200
Sec motion dec
-199
Notes
rPM=0.011 (< 0.3, Physical double)
This double is physical.
 
 
18072-1854 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18072-1854 STN 41 A,BC 1879 2005 16 215 27.7 9.89 10.74 0.85
Show 18072-1854 A 2259 BC 1910 1991 11 208 1.2 10.74 11.50 0.76 <===
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
207.9
Precise sep
1.2
Constellation
Sagittarius
HIP
88762
Tycho2
6259-02107-1
HD
312644
BD
BD-18 4794
Distance
208.77
Distance ly
681.01
last precise pa
207.9
last precise sep
1.2
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18072-1854 A 2259 BC 1991 11 208 1.2 10.74 11.50 180711.82-185432.8

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