20277+3605 ES 2193AB

 
 
20h 27m 42.85s +36 04' 25.2" P.A. 334 sep 4.9 mag 10.24,11.50 Sp B
 
 
Coord 2000
20277+3605
Discov num
ES 2193
Comp
AB
Coord arcsec 2000
20 27 42.85 +36 04 25.2
Date first
1925
Date last
2015
Obs
6
Pa first
337
Pa last
334
P.A. Now (θ)
334°
Sep first
4.0
Sep last
4.9
Sep. Now (ρ)
4.9"
Mag pri
10.24
Mag sec
11.50
delta mag (ΔM)
1.26
Spectral class
B (blue-white)
Pri motion ra
+001
Sec motion ra
Pri motion dec
-012
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
20277+3605 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20277+3605 ES 2193 AB 1925 2015 6 334 4.9 10.24 11.50 1.26 <===
Show 20277+3605 ES 2193 AC 1925 2015 9 231 7.4 10.24 14.90 4.66
Show 20277+3605 ES 2193 AD 1896 2015 11 33 12.7 10.24 11.90 1.66
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
334.2
Precise sep
4.949
Constellation
Cygnus
Tycho2
2697-00848-1
Gaia DR2
02790441984
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20277+3605 ES 2193 AB 1998 2 334 4.9 10.24 11.50 B D 202742.85+360425.2
20277+3605 ES 2193 AB 2015 3 334 5.0 10.24 11.50 B N 202742.85+360425.2

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