18042-2230 B  1875BC

 
 
18h 04m 11.14s -22 29' 42.0" P.A. 236 sep 0.5 mag 8.52,13.20 Sp B0V+A3V
 
 
Coord 2000
18042-2230
Discov num
B  1875
Comp
BC
Coord arcsec 2000
18 04 11.14 -22 29 42.0
Date first
1930
Date last
2002
Obs
3
Pa first
156
Pa last
236
P.A. Now (θ)
236°
Sep first
2.0
Sep last
0.5
Sep. Now (ρ)
0.5"
Mag pri
8.52
Mag sec
13.20
delta mag (ΔM)
4.68
Spectral class
B0V+A3V (blue-white/white)
Pri motion ra
+000
Sec motion ra
Pri motion dec
+001
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
18042-2230 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 186216 18042-2230 S 698 AB 1825 2013 18 316 30.0 7.22 8.52 1.30
Show 186216 18042-2230 WFC 289 AD 1921 1999 4 13 39.1 7.22 10.74 3.52
Show 186215 18042-2230 B 1875 BC 1930 2002 3 236 0.5 8.52 13.20 4.68 <===
Show 186215 18042-2230 ARA1842 DE 1921 1999 6 111 12.6 10.60 12.90 2.30
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
235.5
Precise sep
0.47
Constellation
Sagittarius
SAO
186215
Tycho2
6263-00104-1
HD
313693
last precise pa
235.5
last precise sep
0.47
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18042-2230 B 1875 BC 2002 3 236 0.5 8.52 13.20 B0V+A3V D 180411.14-222942.0

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