20320-3925 WG  257AC

 
 
20h 32m 02.09s -39 25' 11.1" P.A. 238 sep 24.5 mag 9.46,11.52 Sp G0V
 
 
Coord 2000
20320-3925
Discov num
WG  257
Comp
AC
Coord arcsec 2000
20 32 02.09 -39 25 11.1
Date first
1904
Date last
2015
Obs
6
Pa first
229
Pa last
238
P.A. Now (θ)
238°
Sep first
20.9
Sep last
24.5
Sep. Now (ρ)
24.5"
Mag pri
9.46
Mag sec
11.52
delta mag (ΔM)
2.06
Spectral class
G0V (yellow)
Pri motion ra
+048
Sec motion ra
-002
Pri motion dec
-027
Sec motion dec
-019
Notes
rPM=0.919
This double is not physical.
 
 
20320-3925 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20320-3925 B 489 AB 1926 1935 4 278 2.1 9.46 12.60 3.14
Show 20320-3925 WG 257 AC 1904 2015 6 238 24.5 9.46 11.52 2.06 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
238.2
Precise sep
24.464
Constellation
Microscopium
SAO
212205
Tycho2
7954-00019-1
Gaia DR2
36623364224
HD
195333
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20320-3925 WG 257 AC 1998 4 237 23.5 9.46 12.10 D 203202.09-392511.1
20320-3925 WG 257 AC 2015 6 238 24.5 9.46 11.52 G0V 203202.09-392511.1

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