20204+3840 SEI1088AB

 
 
20h 20m 18.47s +38 39' 29.5" P.A. 238 sep 4.4 mag 10.30,11.60
 
 
Coord 2000
20204+3840
Discov num
SEI1088
Comp
AB
Coord arcsec 2000
20 20 18.47 +38 39 29.5
Date first
1896
Date last
2013
Obs
7
Pa first
241
Pa last
238
P.A. Now (θ)
238°
Sep first
4.2
Sep last
4.4
Sep. Now (ρ)
4.4"
Mag pri
10.30
Mag sec
11.60
delta mag (ΔM)
1.3
Spectral class
Pri motion ra
+036
Sec motion ra
Pri motion dec
+019
Sec motion dec
Notes
R (Red magnitudes)
Nature of this double is uncertain.
 
 
20204+3840 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20204+3840 SEI1088 AB 1896 2013 7 238 4.4 10.30 11.60 1.30 <===
Show 20204+3840 SEI1089 AC 1895 2013 10 17 28.2 10.30 10.47 0.17
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
237.9
Precise sep
4.42
Cdsa2 id
SEI 1088 AB
Constellation
Cygnus
Ra deg
20.33846388888889
De deg
38.65819444444444
last precise pa
237.9
last precise sep
4.42
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20204+3840 SEI1088 AB 1994 4 235 3.7 10.56 11.60 202019.18+383956.4
20204+3840 SEI1088 AB 2013 5 238 4.4 10.56 11.60 202019.18+383956.4

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