18273-2140 HU  239

 
 
18h 27m 19.77s -21 39' 34.4" P.A. 184 sep 3.1 mag 10.45,10.60 Sp B9IV/V
 
 
Coord 2000
18273-2140
Discov num
HU  239
Comp
Coord arcsec 2000
18 27 19.77 -21 39 34.4
Date first
1900
Date last
1998
Obs
9
Pa first
184
Pa last
184
P.A. Now (θ)
184°
Sep first
3.1
Sep last
3.1
Sep. Now (ρ)
3.1"
Mag pri
10.45
Mag sec
10.60
delta mag (ΔM)
0.15
Spectral class
B9IV/V (blue-white)
Pri motion ra
+001
Sec motion ra
Pri motion dec
-002
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
184.1
Precise sep
3.11
Constellation
Sagittarius
Tycho2
6278-01698-1
HD
169806
last precise pa
184.1
last precise sep
3.11
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18273-2140 HU 239 1998 9 184 3.1 10.45 10.60 B9IV/V D 182719.77-213934.4

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