18313-1855 TNN  10AB

 
 
18H 31M 18.96S -18 54' 31.7" P.A. 170 SEP 2.8 MAG 4.70,14.06 SP K2V DIST. 13.25 PC (43.22 L.Y.)
 
 
Coord 2000
18313-1855
Discov num
TNN  10
Comp
AB
Coord arcsec 2000
18 31 18.96 -18 54 31.7
Date first
2004
Date last
2004
Obs
1
Pa first
170
Pa last
170
P.A. Now (θ)
170°
Sep first
2.8
Sep last
2.8
Sep. Now (ρ)
2.8"
Mag pri
4.70
Mag sec
14.06
delta mag (ΔM)
9.36
Spectral class
K2V (yellow-orange)
Pri motion ra
-140
Sec motion ra
Pri motion dec
-195
Sec motion dec
Notes
U K (Proper motion indicates non-physical, K-band or other infrared magnitudes)
This double is not physical.
 
 
18313-1855 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 161557 18313-1855 TNN 10 AB 2004 2004 1 170 2.8 4.70 14.06 9.36 <===
Show 161557 18313-1855 TNN 10 AC 2004 2004 1 267 3.5 4.70 15.72 11.02
Show 161557 18313-1855 TNN 10 AD 2004 2004 1 213 5.1 4.70 15.75 11.05
Show 161557 18313-1855 TNN 10 AE 2004 2004 1 71 5.3 4.70 15.91 11.21
Show 161557 18313-1855 TNN 10 AF 2004 2004 1 119 5.4 4.70 13.62 8.92
Sextuple system
6 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Sagittarius
SAO
161557
HIP
90790
Tycho2
6274-01576-1
HD
170657
GL
Gl 716
BD
BD-18 4986
Distance
13.25
Distance ly
43.22
last precise pa
170
last precise sep
2.84