18163-1913 B  2440

 
 
18h 16m 17.04s -19 13' 07.1" P.A. 291 sep 0.5 mag 10.70,11.00 Sp B8Ib/II
 
 
Coord 2000
18163-1913
Discov num
B  2440
Comp
Coord arcsec 2000
18 16 17.04 -19 13 07.1
Date first
1930
Date last
1933
Obs
2
Pa first
116
Pa last
291
P.A. Now (θ)
291°
Sep first
0.6
Sep last
0.5
Sep. Now (ρ)
0.5"
Mag pri
10.70
Mag sec
11.00
delta mag (ΔM)
0.3
Spectral class
B8Ib/II (blue-white)
Pri motion ra
+007
Sec motion ra
Pri motion dec
-001
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Sagittarius
Tycho2
6273-01327-1
HD
167501
last precise pa
291.1
last precise sep
0.45
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18163-1913 B 2440 1933 2 291 0.5 10.70 11.00 B8Ib/II 181617.04-191307.1

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