20277+3605 ES 2193AD

 
 
20h 27m 42.85s +36 04' 25.2" P.A. 33.00 sep 12.7 mag 10.24,11.90
 
 
Coord 2000
20277+3605
Discov num
ES 2193
Comp
AD
Coord arcsec 2000
20 27 42.85 +36 04 25.2
Date first
1896
Date last
2015
Obs
11
Pa first
32
Pa last
33
P.A. Now (θ)
33°
Sep first
12.8
Sep last
12.7
Sep. Now (ρ)
12.7"
Mag pri
10.24
Mag sec
11.90
delta mag (ΔM)
1.66
Spectral class
Pri motion ra
+001
Sec motion ra
-001
Pri motion dec
-012
Sec motion dec
-014
Notes
N (See Notes)
Visually invisible, K-band or other infrared star rPM=0.202 (< 0.3, Physical double)
This double is physical.
 
 
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
33
Precise sep
12.669
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 AD 1998 5 33 12.6 10.24 11.90 D 202742.85+360425.2
20277+3605 ES 2193 AD 2002 6 33 12.7 10.24 11.90 D 202742.85+360425.2
20277+3605 ES 2193 AD 2015 7 33 12.7 10.24 11.90 N 202742.85+360425.2

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