20209+5511 TDT2197

 
 
20h 20m 56.89s +55 10' 55.8" P.A. 241 sep 2 mag 10.81,13.32 Sp B8
 
 
Coord 2000
20209+5511
Discov num
TDT2197
Comp
Coord arcsec 2000
20 20 56.89 +55 10 55.8
Date first
1991
Date last
1991
Obs
1
Pa first
241
Pa last
241
P.A. Now (θ)
241°
Sep first
2.0
Sep last
2.0
Sep. Now (ρ)
2"
Mag pri
10.81
Mag sec
13.32
delta mag (ΔM)
2.51
Spectral class
B8 (blue-white)
Pri motion ra
-001
Sec motion ra
-001
Pri motion dec
-017
Sec motion dec
-017
Notes
X (Dubious double)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
241
Precise sep
1.99
Constellation
Cygnus
Tycho2
3941-01878-1
Gaia DR2
32018388736
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20209+5511 TDT2197 1991 1 241 2.0 10.81 13.32 202056.89+551055.8

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