20119+3551 SEI 983AB

 
 
20h 11m 48.89s +35 50' 52.8" P.A. 89.00 sep 3.5 mag 11.74,11.70 Sp A2:
 
 
Coord 2000
20119+3551
Discov num
SEI 983
Comp
AB
Coord arcsec 2000
20 11 48.89 +35 50 52.8
Date first
1896
Date last
2015
Obs
13
Pa first
91
Pa last
89
P.A. Now (θ)
89°
Sep first
3.0
Sep last
3.5
Sep. Now (ρ)
3.5"
Mag pri
11.74
Mag sec
11.70
delta mag (ΔM)
0.04
Spectral class
A2: (white)
Pri motion ra
-011
Sec motion ra
+026
Pri motion dec
-004
Sec motion dec
-006
Notes
N (See Notes)
Visually invisible, K-band or other infrared star rPM=1.389
This double is not physical.
 
 
20119+3551 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20119+3551 SEI 983 AB 1896 2015 13 89 3.5 11.74 11.70 0.04 <===
Show 20119+3551 SEI 983 AC 1915 2015 5 243 8.1 11.74 15.00 3.26
Show 20119+3551 BKO 102 AD 1998 2015 4 277 14.7 11.74 15.29 3.55
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
88.7
Precise sep
3.464
Constellation
Cygnus
Gaia DR2
49358430848
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20119+3551 SEI 983 AB 2006 11 89 3.4 10.80 10.80 D 201148.90+355052.7
20119+3551 SEI 983 AB 2015 13 89 3.5 11.74 11.70 A2: N 201148.89+355052.8

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