20168+4158 ES 1568AB

 
 
20h 16m 46.95s +41 57' 48.9" P.A. 291 sep 12.7 mag 10.86,12.23
 
 
Coord 2000
20168+4158
Discov num
ES 1568
Comp
AB
Coord arcsec 2000
20 16 46.95 +41 57 48.9
Date first
1892
Date last
2015
Obs
7
Pa first
301
Pa last
291
P.A. Now (θ)
291°
Sep first
11.9
Sep last
12.7
Sep. Now (ρ)
12.7"
Mag pri
10.86
Mag sec
12.23
delta mag (ΔM)
1.37
Spectral class
Pri motion ra
+005
Sec motion ra
-002
Pri motion dec
-014
Sec motion dec
-003
Notes
N (See Notes)
rPM=0.877
This double is not physical.
 
 
20168+4158 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20168+4158 ES 1568 AB 1892 2015 7 291 12.7 10.86 12.23 1.37 <===
Show 20168+4158 ES 1568 BC 1892 2008 6 207 3.5 12.23 12.30 0.07
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
291.1
Precise sep
12.712
Constellation
Cygnus
Tycho2
3159-00988-1
Gaia DR2
31693850752
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20168+4158 ES 1568 AB 1999 5 299 13.0 10.86 12.23 N D 201646.95+415748.9
20168+4158 ES 1568 AB 2002 6 296 12.9 10.86 12.23 N D 201646.95+415748.9
20168+4158 ES 1568 AB 2010 7 296 12.7 10.86 12.23 N 201646.95+415748.9
20168+4158 ES 1568 AB 2015 7 291 12.7 10.86 12.23 N 201646.95+415748.9

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