20211+3424 SEI1096

 
 
20h 21m 05.85s +34 24' 28.5" P.A. 53 sep 9.4 mag 8.70,11.20 Sp F8
 
 
Coord 2000
20211+3424
Discov num
SEI1096
Comp
Coord arcsec 2000
20 21 05.85 +34 24 28.5
Date first
1896
Date last
2015
Obs
12
Pa first
55
Pa last
53
P.A. Now (θ)
53°
Sep first
8.3
Sep last
9.4
Sep. Now (ρ)
9.4"
Mag pri
8.70
Mag sec
11.20
delta mag (ΔM)
2.5
Spectral class
F8 (yellow-white)
Pri motion ra
-003
Sec motion ra
+002
Pri motion dec
-018
Sec motion dec
-018
Notes
rPM=0.274 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
53.2
Precise sep
9.364
Constellation
Cygnus
SAO
69876
Tycho2
2680-00859-1
Gaia DR2
92123011584
HD
229045
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20211+3424 SEI1096 1998 6 54 9.3 8.70 11.20 F8 D 202105.85+342428.5
20211+3424 SEI1096 2002 7 53 9.4 8.70 11.20 F8 D 202105.85+342428.5
20211+3424 SEI1096 2015 8 53 9.3 8.70 11.20 F8 202105.85+342428.5

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