18340-1929 B  1887

 
 
18h 33m 58.70s -19 28' 44.5" P.A. 282 sep 2.2 mag 10.05,10.63 Sp F5V
 
 
Coord 2000
18340-1929
Discov num
B  1887
Comp
Coord arcsec 2000
18 33 58.70 -19 28 44.5
Date first
1930
Date last
2002
Obs
4
Pa first
286
Pa last
282
P.A. Now (θ)
282°
Sep first
2.3
Sep last
2.2
Sep. Now (ρ)
2.2"
Mag pri
10.05
Mag sec
10.63
delta mag (ΔM)
0.58
Spectral class
F5V (yellow-white)
Pri motion ra
+007
Sec motion ra
Pri motion dec
-006
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
282.1
Precise sep
2.16
Constellation
Sagittarius
SAO
161607
Tycho2
6275-00678-1
HD
171172
last precise pa
282.1
last precise sep
2.16
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18340-1929 B 1887 2002 4 282 2.1 10.05 10.63 F5V 183358.70-192844.5

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