18372-2039 DON 914

 
 
18h 37m 07.73s -20 38' 06.4" P.A. 174 sep 0.4 mag 11.00,11.80 Sp B9V
 
 
Coord 2000
18372-2039
Discov num
DON 914
Comp
Coord arcsec 2000
18 37 07.73 -20 38 06.4
Date first
1930
Date last
1941
Obs
2
Pa first
177
Pa last
174
P.A. Now (θ)
174°
Sep first
0.3
Sep last
0.4
Sep. Now (ρ)
0.4"
Mag pri
11.00
Mag sec
11.80
delta mag (ΔM)
0.8
Spectral class
B9V (blue-white)
Pri motion ra
-002
Sec motion ra
Pri motion dec
-001
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
173.7
Precise sep
0.39
Constellation
Sagittarius
Tycho2
6279-01275-1
last precise pa
173.7
last precise sep
0.39
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18372-2039 DON 914 1941 2 174 0.4 10.50 11.30 B9V 183730.00-203900.0

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