18117-2404 B  2858

 
 
18h 11m 39.96s -24 03' 33.8" P.A. 193 sep 9.3 mag 9.43,11.10 Sp B8II/III
 
 
Coord 2000
18117-2404
Discov num
B  2858
Comp
Coord arcsec 2000
18 11 39.96 -24 03 33.8
Date first
1911
Date last
2000
Obs
5
Pa first
194
Pa last
193
P.A. Now (θ)
193°
Sep first
9.1
Sep last
9.3
Sep. Now (ρ)
9.3"
Mag pri
9.43
Mag sec
11.10
delta mag (ΔM)
1.67
Spectral class
B8II/III (blue-white)
Pri motion ra
+002
Sec motion ra
-001
Pri motion dec
-005
Sec motion dec
-012
Notes
rPM=0.632
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
192.6
Precise sep
9.34
Constellation
Sagittarius
SAO
186435
Tycho2
6843-01045-1
HD
166445
last precise pa
192.6
last precise sep
9.34
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18117-2404 B 2858 2000 4 193 9.3 9.43 11.10 B8II/III D 181139.96-240333.8

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