20136+3553 SEI1021AB

 
 
20h 13m 34.11s +35 52' 53.8" P.A. 248 sep 13.4 mag 10.90,12.40
 
 
Coord 2000
20136+3553
Discov num
SEI1021
Comp
AB
Coord arcsec 2000
20 13 34.11 +35 52 53.8
Date first
1896
Date last
2015
Obs
8
Pa first
241
Pa last
248
P.A. Now (θ)
248°
Sep first
14.7
Sep last
13.4
Sep. Now (ρ)
13.4"
Mag pri
10.90
Mag sec
12.40
delta mag (ΔM)
1.5
Spectral class
Pri motion ra
-007
Sec motion ra
+004
Pri motion dec
-009
Sec motion dec
+007
Notes
rPM=1.703
This double is not physical.
 
 
20136+3553 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20136+3553 SEI1021 AB 1896 2015 8 248 13.4 10.90 12.40 1.50 <===
Show 20136+3553 SEI1021 AC 2002 2015 2 253 10.3 10.90 14.20 3.30
Show 20136+3553 SEI1021 AD 1999 2015 3 120 7.0 10.90 15.10 4.20
Show 20136+3553 SEI1021 BC 2002 2015 2 52 3.3 12.40 14.20 1.80
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
247.5
Precise sep
13.408
Constellation
Cygnus
Tycho2
2683-03118-1
Gaia DR2
91197902336
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20136+3553 SEI1021 AB 2011 7 247 13.4 10.90 12.40 D 201334.11+355253.8
20136+3553 SEI1021 AB 2015 8 248 13.4 10.90 12.40 201334.11+355253.8

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