18317-1915 ARN 107

 
 
18h 31m 41.15s -19 15' 17.6" P.A. 289 sep 21.2 mag 9.68,10.94 Sp em
 
 
Coord 2000
18317-1915
Discov num
ARN 107
Comp
Coord arcsec 2000
18 31 41.15 -19 15 17.6
Date first
1919
Date last
2010
Obs
7
Pa first
289
Pa last
289
P.A. Now (θ)
289°
Sep first
20.8
Sep last
21.2
Sep. Now (ρ)
21.2"
Mag pri
9.68
Mag sec
10.94
delta mag (ΔM)
1.26
Spectral class
em
Pri motion ra
-003
Sec motion ra
-005
Pri motion dec
-005
Sec motion dec
-008
Notes
rPM=0.382
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
288.7
Precise sep
21.24
Constellation
Sagittarius
Tycho2
6274-01251-1
last precise pa
288.7
last precise sep
21.24
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18317-1915 ARN 107 2009 1 288 20.7 9.60 10.80 183141.15-191517.6
18317-1915 ARN 107 2010 7 289 21.2 9.68 10.94 em 183141.15-191517.6

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