18179-1848 BU  299AT

 
 
18h 17m 51.13s -18 47' 54.6" P.A. 21 sep 21.5 mag 6.75,12.60 Sp B8IV dist. 202.43 pc (660.33 l.y.)
 
 
Coord 2000
18179-1848
Discov num
BU  299
Comp
AT
Coord arcsec 2000
18 17 51.13 -18 47 54.6
Date first
1874
Date last
2006
Obs
6
Pa first
0
Pa last
21
P.A. Now (θ)
21°
Sep first
20.0
Sep last
21.5
Sep. Now (ρ)
21.5"
Mag pri
6.75
Mag sec
12.60
delta mag (ΔM)
5.85
Spectral class
B8IV (blue-white)
Pri motion ra
+004
Sec motion ra
-007
Pri motion dec
+000
Sec motion dec
+013
Notes
rPM=1.153
This double is not physical.
 
 
18179-1848 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 161278 18179-1848 SHJ 263 AB 1879 2016 22 11 53.9 6.75 9.25 2.50
Show 161278 18179-1848 BU 299 AT 1874 2006 6 21 21.5 6.75 12.60 5.85 <===
Show 161278 18179-1848 BU 299 AU 1874 2006 6 66 28.5 6.75 13.40 6.65
Show 161278 18179-1848 BU 299 AV 1874 2000 5 324 22.9 6.75 12.50 5.75
Show 161278 18179-1848 BU 299 AW 1999 2006 4 325 23.4 6.75 13.10 6.35
Show 18179-1848 BU 299 BR 1874 2006 6 134 10.1 9.25 12.80 3.55
Show 161278 18179-1848 BU 299 TS 1874 2000 7 304 7.5 12.60 12.60 0.00
Show 161278 18179-1848 BU 299 VW 1874 2006 7 317 6.8 12.48 13.10 0.62
Octuple system
8 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
21
Precise sep
21.48
Constellation
Sagittarius
SAO
161278
HIP
89659
Tycho2
6273-01475-1
HD
167863
BD
BD-18 4888
Distance
202.43
Distance ly
660.33
last precise pa
21
last precise sep
21.48
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18179-1848 BU 299 AT 1999 3 21 21.7 6.75 12.70 B8IV D 181751.13-184754.6
18179-1848 BU 299 AT 2000 5 21 21.3 6.75 12.60 B8IV D 181751.13-184754.6
18179-1848 BU 299 AT 2006 6 21 21.5 6.75 12.60 B8IV 181751.13-184754.6

If you need more information about this double, apply for a data request form to the WDS.