18326-1657 ARA 283AB

 
 
18h 32m 35.40s -16 56' 26.3" P.A. 35 sep 11.9 mag 10.41,10.61
 
 
Coord 2000
18326-1657
Discov num
ARA 283
Comp
AB
Coord arcsec 2000
18 32 35.40 -16 56 26.3
Date first
1905
Date last
2017
Obs
8
Pa first
41
Pa last
35
P.A. Now (θ)
35°
Sep first
10.5
Sep last
11.9
Sep. Now (ρ)
11.9"
Mag pri
10.41
Mag sec
10.61
delta mag (ΔM)
0.2
Spectral class
Pri motion ra
-009
Sec motion ra
+001
Pri motion dec
-020
Sec motion dec
-007
Notes
rPM=0.748
Nature of this double is uncertain.
 
 
18326-1657 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18326-1657 ARA 283 AB 1905 2017 8 35 11.9 10.41 10.61 0.20 <===
Show 18326-1657 ARA 283 AC 1916 2017 5 143 13.9 10.41 12.00 1.59
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
35.1
Precise sep
11.86
Cdsa2 id
ARA 283 AB
Constellation
Sagittarius
Tycho2
6271-00570-1
Ra deg
18.543166666666668
De deg
-16.940638888888888
last precise pa
35.1
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
18326-1657 ARA 283 AB 2005 6 35 11.4 10.41 10.61 D 183235.40-165626.3
18326-1657 ARA 283 AB 2017 8 35 11.9 10.41 10.61 183235.40-165626.3

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