20484-1812 S   763AB

 
 
20h 48m 25.96s -18 12' 06.1" P.A. 293 sep 15.8 mag 7.24,7.79 Sp G8III-IV
 
 
Coord 2000
20484-1812
Discov num
S   763
Comp
AB
Coord arcsec 2000
20 48 25.96 -18 12 06.1
Date first
1795
Date last
2016
Obs
43
Pa first
287
Pa last
293
P.A. Now (θ)
293°
Sep first
14.8
Sep last
15.8
Sep. Now (ρ)
15.8"
Mag pri
7.24
Mag sec
7.79
delta mag (ΔM)
0.55
Spectral class
G8III-IV (yellow)
Pri motion ra
+020
Sec motion ra
+017
Pri motion dec
-011
Sec motion dec
-007
Notes
N (See Notes)
rPM=0.219 (< 0.3, Physical double)
This double is physical.
 
 
20484-1812 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20484-1812 S 763 AB 1795 2016 43 293 15.8 7.24 7.79 0.55 <===
Show 20484-1812 S 763 AC 1903 1999 4 177 542.8 7.24 11.72 4.48
Show 20484-1812 S 763 CD 1903 1999 5 334 9.1 11.72 12.00 0.28
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
292.9
Precise sep
15.78
Cdsa2 id
S 763 AB
Constellation
Capricornus
Tycho2
6348-01744-1
HD
198063
Ra deg
20.807211111111112
De deg
-18.201694444444446
last precise pa
292.9
last precise sep
15.78
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20484-1812 S 763 AB 2002 36 294 15.8 7.24 7.79 G8III-IV N D 204825.96-181206.1
20484-1812 S 763 AB 2010 37 293 15.5 7.24 7.79 G8III-IV N D 204825.96-181206.1
20484-1812 S 763 AB 2012 40 293 15.8 7.24 7.79 G8III-IV N D 204825.96-181206.1
20484-1812 S 763 AB 2013 42 293 15.9 7.24 7.79 G8III-IV N 204825.96-181206.1
20484-1812 S 763 AB 2016 43 293 15.8 7.24 7.79 G8III-IV N 204825.96-181206.1

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