18087-1756 ARA 266AB

 
 
18h 08m 40.05s -17 55' 59.9" P.A. 125 sep 11.9 mag 10.73,12.20 Sp G0
 
 
Coord 2000
18087-1756
Discov num
ARA 266
Comp
AB
Coord arcsec 2000
18 08 40.05 -17 55 59.9
Date first
1916
Date last
2007
Obs
7
Pa first
121
Pa last
125
P.A. Now (θ)
125°
Sep first
11.9
Sep last
11.9
Sep. Now (ρ)
11.9"
Mag pri
10.73
Mag sec
12.20
delta mag (ΔM)
1.47
Spectral class
G0 (yellow)
Pri motion ra
-002
Sec motion ra
-001
Pri motion dec
+003
Sec motion dec
-004
Notes
rPM=1.715
This double is not physical.
 
 
18087-1756 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18087-1756 TDT 706 Aa,Ab 1991 1991 1 98 0.8 11.16 11.82 0.66
Show 18087-1756 ARA 266 AB 1916 2007 7 125 11.9 10.73 12.20 1.47 <===
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
125
Precise sep
11.86
Constellation
Sagittarius
Tycho2
6268-00716-1
HD
312621
last precise pa
125
last precise sep
11.86
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18087-1756 ARA 266 AB 1998 3 125 11.8 10.73 12.20 D 180840.05-175559.9
18087-1756 ARA 266 AB 2007 5 125 11.9 10.73 12.20 D 180840.05-175559.9
18087-1756 ARA 266 AB 2010 8 125 11.6 10.73 12.20 G0 180840.05-175559.9

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