20242+5807 A   729AC

 
 
20h 24m 11.72s +58 07' 37.0" P.A. 69 sep 36.4 mag 9.70,12.78
 
 
Coord 2000
20242+5807
Discov num
A   729
Comp
AC
Coord arcsec 2000
20 24 11.72 +58 07 37.0
Date first
1912
Date last
2015
Obs
5
Pa first
70
Pa last
69
P.A. Now (θ)
69°
Sep first
36.4
Sep last
36.4
Sep. Now (ρ)
36.4"
Mag pri
9.70
Mag sec
12.78
delta mag (ΔM)
3.08
Spectral class
Pri motion ra
-001
Sec motion ra
-009
Pri motion dec
-016
Sec motion dec
-016
Notes
rPM=0.436
Nature of this double is uncertain.
 
 
20242+5807 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20242+5807 A 729 AB 1904 2015 9 252 2.8 10.09 12.10 2.01
Show 20242+5807 A 729 AC 1912 2015 5 69 36.4 9.70 12.78 3.08 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
69
Precise sep
36.412
Constellation
Cygnus
SAO
32535
Tycho2
3949-00738-1
Gaia DR2
82957551360
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20242+5807 A 729 AC 1999 2 69 36.8 10.09   D 202411.72+580737.0
20242+5807 A 729 AC 2010 3 69 36.3 10.09   D 202411.72+580737.0
20242+5807 A 729 AC 2015 5 69 36.4 9.70 12.78 202411.72+580737.0

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