20115+3639 SEI 974AB

 
 
20h 11m 33.03s +36 38' 30.2" P.A. 7 sep 18.1 mag 10.66,10.85
 
 
Coord 2000
20115+3639
Discov num
SEI 974
Comp
AB
Coord arcsec 2000
20 11 33.03 +36 38 30.2
Date first
1896
Date last
2015
Obs
12
Pa first
9
Pa last
7
P.A. Now (θ)
Sep first
19.0
Sep last
18.1
Sep. Now (ρ)
18.1"
Mag pri
10.66
Mag sec
10.85
delta mag (ΔM)
0.19
Spectral class
Pri motion ra
+005
Sec motion ra
-002
Pri motion dec
-001
Sec motion dec
-007
Notes
rPM=1.266
This double is not physical.
 
 
20115+3639 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20115+3639 SEI 974 AB 1896 2015 12 7 18.1 10.66 10.85 0.19 <===
Show 20115+3639 TOB 175 AC 1896 2015 12 95 53.3 10.66 11.52 0.86
Show 20115+3639 TOB 175 AD 1896 2015 9 123 36.6 10.66 12.55 1.89
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
7
Precise sep
18.064
Constellation
Cygnus
Tycho2
2683-00200-1
Gaia DR2
34126706432
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20115+3639 SEI 974 AB 1998 6 6 18.8 10.66 10.85 D 201133.03+363830.2
20115+3639 SEI 974 AB 2002 7 7 18.3 10.66 10.85 D 201133.03+363830.2
20115+3639 SEI 974 AB 2015 8 7 18.1 10.66 10.85 201133.03+363830.2

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