20414+3644 SEI1215

 
 
20h 41m 12.02s +36 44' 37.8" P.A. 135.00 sep 28.8 mag 11.83,12.55
 
 
Coord 2000
20414+3644
Discov num
SEI1215
Comp
Coord arcsec 2000
20 41 12.02 +36 44 37.8
Date first
1896
Date last
2015
Obs
13
Pa first
136
Pa last
135
P.A. Now (θ)
135°
Sep first
28.5
Sep last
28.8
Sep. Now (ρ)
28.8"
Mag pri
11.83
Mag sec
12.55
delta mag (ΔM)
0.72
Spectral class
Pri motion ra
-001
Sec motion ra
-003
Pri motion dec
-003
Sec motion dec
-004
Notes
rPM=0.447
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
134.9
Precise sep
28.789
Constellation
Cygnus
Tycho2
2698-00875-1
Gaia DR2
32372425344
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20414+3644 SEI1215 1998 6 135 28.8 11.92 12.83 DB 204112.02+364437.8
20414+3644 SEI1215 2002 7 135 28.8 11.92 12.83 DB 204112.02+364437.8
20414+3644 SEI1215 2010 8 135 28.9 11.83 12.55 204112.02+364437.8
20414+3644 SEI1215 2015 9 135 28.8 11.83 12.55 204112.02+364437.8

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