18106-1645 S   700AB

 
 
18h 10m 33.56s -16 44' 57.4" P.A. 292 sep 18.8 mag 8.27,9.73 Sp B1III
 
 
Coord 2000
18106-1645
Discov num
S   700
Comp
AB
Coord arcsec 2000
18 10 33.56 -16 44 57.4
Date first
1879
Date last
2015
Obs
18
Pa first
291
Pa last
292
P.A. Now (θ)
292°
Sep first
19.7
Sep last
18.8
Sep. Now (ρ)
18.8"
Mag pri
8.27
Mag sec
9.73
delta mag (ΔM)
1.46
Spectral class
B1III (blue-white)
Pri motion ra
+003
Sec motion ra
+003
Pri motion dec
+000
Sec motion dec
+002
Notes
N (See Notes)
rPM=0.555
Nature of this double is uncertain.
 
 
18106-1645 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 161139 18106-1645 S 700 AB 1879 2015 18 292 18.8 8.27 9.73 1.46 <===
Show 161139 18106-1645 S 700 AC 1825 2015 24 353 28.6 8.27 8.59 0.32
Show 161139 18106-1645 ABH 94 AD 1987 2002 4 348 47.3 8.27 14.20 5.93
Show 161139 18106-1645 ABH 94 AE 1987 2002 4 65 57.9 8.27 13.48 5.21
Show 161139 18106-1645 ABH 94 AF 1987 2002 4 49 99.3 8.27 13.07 4.80
Show 161139 18106-1645 S 700 AG 1876 2015 6 297 35.6 8.27 11.30 3.03
Septuple system
7 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
292.1
Precise sep
18.8
Constellation
Sagittarius
SAO
161139
Tycho2
6264-01001-1
HD
166286
last precise pa
292.1
last precise sep
18.8
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18106-1645 S 700 AB 2003 16 292 18.8 8.27 9.73 B1III N D 181033.56-164457.4
18106-1645 S 700 AB 2015 18 292 18.8 8.27 9.73 B1III N 181033.56-164457.4

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