18117-1605 J  1620BC

 
 
18h 11m 41.37s -16 04' 44.6" P.A. 236 sep 7.3 mag 10.97,11.30
 
 
Coord 2000
18117-1605
Discov num
J  1620
Comp
BC
Coord arcsec 2000
18 11 41.37 -16 04 44.6
Date first
1905
Date last
2017
Obs
11
Pa first
237
Pa last
236
P.A. Now (θ)
236°
Sep first
7.3
Sep last
7.3
Sep. Now (ρ)
7.3"
Mag pri
10.97
Mag sec
11.30
delta mag (ΔM)
0.33
Spectral class
Pri motion ra
-002
Sec motion ra
+001
Pri motion dec
-003
Sec motion dec
-012
Notes
U (Proper motion indicates non-physical)
rPM=0.788
This double is not physical.
 
 
18117-1605 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 161161 18117-1605 J 1620 AB 1905 2017 9 273 27.7 9.65 10.97 1.32
Show 161161 18117-1605 ABH 95 AE 1905 2002 6 346 46.8 9.65 12.69 3.04
Show 161161 18117-1605 ABH 95 AF 1905 2002 7 300 120.1 9.65 11.32 1.67
Show 161161 18117-1605 J 1620 BC 1905 2017 11 236 7.3 10.97 11.30 0.33 <===
Show 161161 18117-1605 J 1620 BD 1905 2017 11 11 8.0 10.97 11.20 0.23
Sextuple system
6 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
236
Precise sep
7.252
Cdsa2 id
J 1620 BC
Constellation
Sagittarius
SAO
161161
Tycho2
6264-00459-1
Ra deg
18.194825
De deg
-16.079055555555556
last precise pa
236
last precise sep
7.252
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18117-1605 J 1620 BC 2005 7 235 7.2 10.97 11.30 D 181141.37-160444.6
18117-1605 J 1620 BC 2017 11 236 7.3 10.97 11.30 U 181141.37-160444.6

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