20282+8125 STH   7AC

 
 
20h 28m 14.45s +81 25' 21.6" P.A. 282 sep 196.6 mag 5.48,6.66 Sp G9III dist. 139.66 pc (455.57 l.y.)
 
 
Coord 2000
20282+8125
Discov num
STH   7
Comp
AC
Coord arcsec 2000
20 28 14.45 +81 25 21.6
Date first
1884
Date last
2015
Obs
18
Pa first
285
Pa last
282
P.A. Now (θ)
282°
Sep first
198.4
Sep last
196.6
Sep. Now (ρ)
196.6"
Mag pri
5.48
Mag sec
6.66
delta mag (ΔM)
1.18
Spectral class
G9III (yellow)
Pri motion ra
+034
Sec motion ra
+046
Pri motion dec
+016
Sec motion dec
+020
Notes
N (See Notes)
rPM=0.252 (< 0.3, Physical double)
This double is physical.
 
 
20282+8125 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 75 Dra 3408 20282+8125 BUP 211 AB 1898 2015 8 11 109.5 5.48 11.34 5.86
Show 20282+8125 STH 7 AC 1884 2015 18 282 196.6 5.48 6.66 1.18 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
282.1
Precise sep
196.605
Constellation
Draco
SAO
3408
HIP
100965
Tycho2
4597-01693-1
Gaia DR2
55466272256
HD
196787
HR
7901
GC
28611
BD
BD+80 659
Flamsteed
75 Draconis
Flamsteed name
75 Dra
Distance
139.66
Distance ly
455.57
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20282+8125 STH 7 AC 2000 15 282 196.6 5.48 6.66 G9III D 202814.45+812521.6
20282+8125 STH 7 AC 2004 16 282 196.6 5.48 6.66 G9III N D 202814.45+812521.6
20282+8125 STH 7 AC 2012 17 282 196.7 5.48 6.66 G9III N 202814.45+812521.6
20282+8125 STH 7 AC 2015 18 282 196.6 5.48 6.66 G9III N 202814.45+812521.6

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