18108-1709 HU  195AB

 
 
18h 10m 45.10s -17 08' 38.5" P.A. 71 sep 1.3 mag 8.62,10.79 Sp G8/K0III
 
 
Coord 2000
18108-1709
Discov num
HU  195
Comp
AB
Coord arcsec 2000
18 10 45.10 -17 08 38.5
Date first
1900
Date last
1991
Obs
4
Pa first
73
Pa last
71
P.A. Now (θ)
71°
Sep first
1.1
Sep last
1.3
Sep. Now (ρ)
1.3"
Mag pri
8.62
Mag sec
10.79
delta mag (ΔM)
2.17
Spectral class
G8/K0III (yellow)
Pri motion ra
-003
Sec motion ra
-003
Pri motion dec
-041
Sec motion dec
-041
Notes
Nature of this double is uncertain.
 
 
18108-1709 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18108-1709 HU 195 AB 1900 1991 4 71 1.3 8.62 10.79 2.17 <===
Show 18108-1709 HJ 593 AC 1827 2017 17 313 19.9 8.62 9.60 0.98
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
70.5
Precise sep
1.312
Constellation
Sagittarius
SAO
161146
Tycho2
6268-01365-1
Gaia DR2
66859972608
HD
166305
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18108-1709 HU 195 AB 1991 4 71 1.3 8.62 10.79 G8/K0III 181045.10-170838.5

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