18228-2235 ARA1880

 
 
18h 22m 47.35s -22 35' 17.5" P.A. 243 sep 10.5 mag 11.85,12.20
 
 
Coord 2000
18228-2235
Discov num
ARA1880
Comp
Coord arcsec 2000
18 22 47.35 -22 35 17.5
Date first
1920
Date last
1999
Obs
4
Pa first
249
Pa last
243
P.A. Now (θ)
243°
Sep first
10.8
Sep last
10.5
Sep. Now (ρ)
10.5"
Mag pri
11.85
Mag sec
12.20
delta mag (ΔM)
0.35
Spectral class
Pri motion ra
-001
Sec motion ra
-002
Pri motion dec
-002
Sec motion dec
-006
Notes
rPM=0.652
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
243.3
Precise sep
10.467
Constellation
Sagittarius
Tycho2
6844-00600-1
last precise pa
243.3
last precise sep
10.467
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18228-2235 ARA1880 1998 2 244 10.4 11.85 12.20 D 182247.35-223517.5
18228-2235 ARA1880 1999 3 243 10.5 11.85 12.20 D 182247.35-223517.5

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