18511-1421 RST4602

 
 
18h 51m 05.74s -14 21' 38.2" P.A. 219 sep 2.6 mag 10.60,10.80 Sp B8/9Ib
 
 
Coord 2000
18511-1421
Discov num
RST4602
Comp
Coord arcsec 2000
18 51 05.74 -14 21 38.2
Date first
1939
Date last
2009
Obs
7
Pa first
219
Pa last
219
P.A. Now (θ)
219°
Sep first
2.3
Sep last
2.6
Sep. Now (ρ)
2.6"
Mag pri
10.60
Mag sec
10.80
delta mag (ΔM)
0.2
Spectral class
B8/9Ib (blue-white)
Pri motion ra
+011
Sec motion ra
Pri motion dec
+007
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
218.6
Precise sep
2.57
Constellation
Scutum
Tycho2
5705-00774-1
HD
174440
last precise pa
218.6
last precise sep
2.57
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18511-1421 RST4602 1997 5 222 2.9 10.60 10.80 B8/9Ib N 185105.74-142138.2
18511-1421 RST4602 2002 6 218 2.6 10.60 10.80 B8/9Ib N 185105.74-142138.2
18511-1421 RST4602 2009 7 219 2.6 10.60 10.80 B8/9Ib N 185105.74-142138.2

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