18108-1709 HJ  593AC

 
 
18h 10m 45.10s -17 08' 38.5" P.A. 310 sep 19.3 mag 8.62,9.60 Sp G8/K0III
 
 
Coord 2000
18108-1709
Discov num
HJ  593
Comp
AC
Coord arcsec 2000
18 10 45.10 -17 08 38.5
Date first
1827
Date last
2004
Obs
16
Pa first
285
Pa last
310
P.A. Now (θ)
310°
Sep first
12.0
Sep last
19.3
Sep. Now (ρ)
19.3"
Mag pri
8.62
Mag sec
9.60
delta mag (ΔM)
0.98
Spectral class
G8/K0III (yellow)
Pri motion ra
-006
Sec motion ra
+001
Pri motion dec
-036
Sec motion dec
+000
Notes
rPM=1.005
This double is not physical.
 
 
18108-1709 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 161146 18108-1709 HU 195 AB 1900 1991 4 71 1.3 8.62 10.79 2.17
Show 161146 18108-1709 HJ 593 AC 1827 2004 16 310 19.3 8.62 9.60 0.98 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
310.3
Precise sep
19.26
Constellation
Sagittarius
SAO
161146
Tycho2
6268-01365-1
HD
166305
last precise pa
310.3
last precise sep
19.26
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18108-1709 HJ 593 AC 2004 14 310 19.3 8.62 9.60 D 181045.10-170838.5

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