20185-4000 WG  254AC

 
 
20h 18m 32.03s -40 00' 46.0" P.A. 20 sep 14.3 mag 11.00,12.00 Sp G8/K2
 
 
Coord 2000
20185-4000
Discov num
WG  254
Comp
AC
Coord arcsec 2000
20 18 32.03 -40 00 46.0
Date first
1898
Date last
2015
Obs
6
Pa first
31
Pa last
20
P.A. Now (θ)
20°
Sep first
12.1
Sep last
14.3
Sep. Now (ρ)
14.3"
Mag pri
11.00
Mag sec
12.00
delta mag (ΔM)
1
Spectral class
G8/K2 (yellow)
Pri motion ra
+011
Sec motion ra
+011
Pri motion dec
-039
Sec motion dec
-004
Notes
rPM=0.864
This double is not physical.
 
 
20185-4000 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20185-4000 B 474 AB 1925 1925 1 29 3.0 11.00 13.60 2.60
Show 20185-4000 WG 254 AC 1898 2015 6 20 14.3 11.00 12.00 1.00 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
19.9
Precise sep
14.255
Constellation
Sagittarius
Gaia DR2
71627452160
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20185-4000 WG 254 AC 1998 4 21 14.0 11.00 12.00 D 201832.03-400046.0
20185-4000 WG 254 AC 2010 6 20 12.9 11.00 12.00 G8/K2 201832.03-400046.0
20185-4000 WG 254 AC 2015 6 20 14.3 11.00 12.00 G8/K2 201832.03-400046.0

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