20365+5557 HJ 1556AC

 
 
20h 36m 26.51s +55 56' 41.3" P.A. 222 sep 6.6 mag 11.21,12.80
 
 
Coord 2000
20365+5557
Discov num
HJ 1556
Comp
AC
Coord arcsec 2000
20 36 26.51 +55 56 41.3
Date first
1903
Date last
2018
Obs
9
Pa first
223
Pa last
222
P.A. Now (θ)
222°
Sep first
8.6
Sep last
6.6
Sep. Now (ρ)
6.6"
Mag pri
11.21
Mag sec
12.80
delta mag (ΔM)
1.59
Spectral class
Pri motion ra
-008
Sec motion ra
+009
Pri motion dec
-007
Sec motion dec
+004
Notes
rPM=1.905
This double is not physical.
 
 
20365+5557 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20365+5557 VBS 30 AB 1903 2018 8 142 4.6 11.21 12.20 0.99
Show 20365+5557 HJ 1556 AC 1903 2018 9 222 6.6 11.21 12.80 1.59 <===
Show 20365+5557 VBS 30 AD 1903 2018 9 98 29.6 11.21 11.88 0.67
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
222.4
Precise sep
6.628
Constellation
Cygnus
Tycho2
3954-00542-1
Gaia DR2
54378531968
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20365+5557 HJ 1556 AC 2003 6 222 6.8 11.21 12.80 D 203626.51+555641.3
20365+5557 HJ 1556 AC 2015 9 222 6.7 11.21 12.80 203626.51+555641.3
20365+5557 HJ 1556 AC 2018 10 222 6.6 11.21 12.80 203626.51+555641.3

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