20168+4158 ES 1568BC

 
 
20h 16m 45.92s +41 57' 54.6" P.A. 207 sep 3.5 mag 12.23,12.30
 
 
Coord 2000
20168+4158
Discov num
ES 1568
Comp
BC
Coord arcsec 2000
20 16 45.92 +41 57 54.6
Date first
1892
Date last
2008
Obs
6
Pa first
194
Pa last
207
P.A. Now (θ)
207°
Sep first
2.0
Sep last
3.5
Sep. Now (ρ)
3.5"
Mag pri
12.23
Mag sec
12.30
delta mag (ΔM)
0.07
Spectral class
Pri motion ra
-002
Sec motion ra
Pri motion dec
-001
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
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 2002 6 297 12.9 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
207.4
Precise sep
3.49
Constellation
Cygnus
last precise pa
207.4
last precise sep
3.49
 
 
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 BC 1997 5 189 2.9 12.23 12.30 N 201645.92+415754.6
20168+4158 ES 1568 BC 2008 6 207 3.5 12.23 12.30 N 201645.92+415754.6

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