20117+3720 SEI 982

 
 
20h 11m 42.78s +37 20' 11.5" P.A. 63 sep 19.6 mag 11.78,12.47 Sp em
 
 
Coord 2000
20117+3720
Discov num
SEI 982
Comp
Coord arcsec 2000
20 11 42.78 +37 20 11.5
Date first
1896
Date last
2016
Obs
14
Pa first
64
Pa last
63
P.A. Now (θ)
63°
Sep first
19.0
Sep last
19.6
Sep. Now (ρ)
19.6"
Mag pri
11.78
Mag sec
12.47
delta mag (ΔM)
0.69
Spectral class
em
Pri motion ra
-003
Sec motion ra
+002
Pri motion dec
-013
Sec motion dec
-006
Notes
rPM=0.645
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
63.2
Precise sep
19.582
Constellation
Cygnus
Tycho2
2683-02051-1
Gaia DR2
93861224448
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20117+3720 SEI 982 1983 4 63 19.5 11.00 11.00 201108.57+372000.0
20117+3720 SEI 982 1998 5 63 19.5 12.62 12.80 D 201142.78+372011.5
20117+3720 SEI 982 2002 6 63 19.5 12.62 12.80 D 201142.78+372011.5
20117+3720 SEI 982 2011 7 63 19.6 12.62 12.80 D 201142.78+372011.5
20117+3720 SEI 982 2016 9 63 19.6 11.78 12.47 em 201142.78+372011.5

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