18028-2705 HLD  32AB

 
 
18h 02m 45.04s -27 04' 42.4" P.A. 100 sep 5.2 mag 8.44,9.40 Sp F7V
 
 
Coord 2000
18028-2705
Discov num
HLD  32
Comp
AB
Coord arcsec 2000
18 02 45.04 -27 04 42.4
Date first
1881
Date last
2001
Obs
16
Pa first
102
Pa last
100
P.A. Now (θ)
100°
Sep first
4.5
Sep last
5.2
Sep. Now (ρ)
5.2"
Mag pri
8.44
Mag sec
9.40
delta mag (ΔM)
0.96
Spectral class
F7V (yellow-white)
Pri motion ra
-033
Sec motion ra
Pri motion dec
+005
Sec motion dec
Notes
V (Proper motion indicates physical)
This double is physical.
 
 
18028-2705 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18028-2705 HLD 32 AB 1881 2001 16 100 5.2 8.44 9.40 0.96 <===
Show 18028-2705 FOX 218 AC 1909 1998 3 67 41.9 8.44 11.50 3.06
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Sagittarius
Tycho2
6850-00972-1
HD
164538
last precise pa
99.6
last precise sep
5.2
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18028-2705 HLD 32 AB 2001 16 100 5.2 8.40 9.40 F7V DV 180245.05-270442.5

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