20117+3458 SEI 977

 
 
20h 11m 43.26s +34 57' 25.8" P.A. 39 sep 15.2 mag 11.84,11.89
 
 
Coord 2000
20117+3458
Discov num
SEI 977
Comp
Coord arcsec 2000
20 11 43.26 +34 57 25.8
Date first
1896
Date last
2015
Obs
19
Pa first
39
Pa last
39
P.A. Now (θ)
39°
Sep first
12.9
Sep last
15.2
Sep. Now (ρ)
15.2"
Mag pri
11.84
Mag sec
11.89
delta mag (ΔM)
0.05
Spectral class
Pri motion ra
-015
Sec motion ra
-002
Pri motion dec
-015
Sec motion dec
-002
Notes
L (Linear solution)
rPM=0.867
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
38.7
Precise sep
15.225
Constellation
Cygnus
Tycho2
2679-02098-1
Gaia DR2
69135687808
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20117+3458 SEI 977 1998 5 39 14.9 11.84 11.89 LD 201143.26+345725.8
20117+3458 SEI 977 2002 6 39 15.0 11.84 11.89 LD 201143.26+345725.8
20117+3458 SEI 977 2011 7 39 15.2 11.84 11.89 LD 201143.26+345725.8
20117+3458 SEI 977 2015 19 39 15.2 11.84 11.89 L 201143.26+345725.8

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