20173+3420 SEI1064

 
 
20h 17m 16.15s +34 20' 08.0" P.A. 254 sep 23.9 mag 10.16,10.67 Sp A0
 
 
Coord 2000
20173+3420
Discov num
SEI1064
Comp
Coord arcsec 2000
20 17 16.15 +34 20 08.0
Date first
1893
Date last
2015
Obs
17
Pa first
253
Pa last
254
P.A. Now (θ)
254°
Sep first
23.8
Sep last
23.9
Sep. Now (ρ)
23.9"
Mag pri
10.16
Mag sec
10.67
delta mag (ΔM)
0.51
Spectral class
A0 (white)
Pri motion ra
-001
Sec motion ra
-002
Pri motion dec
-006
Sec motion dec
-004
Notes
N (See Notes)
rPM=0.368
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
254
Precise sep
23.868
Constellation
Cygnus
Tycho2
2680-01487-1
Gaia DR2
45716598912
HD
228740
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20173+3420 SEI1064 2000 8 254 23.8 10.16 10.67 A0 N D 201716.15+342008.0
20173+3420 SEI1064 2010 9 254 23.7 10.16 10.67 A0 N D 201716.15+342008.0
20173+3420 SEI1064 2011 10 254 23.8 10.16 10.67 A0 N D 201716.15+342008.0
20173+3420 SEI1064 2015 13 254 23.9 10.16 10.67 A0 N 201716.15+342008.0

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