20219+3017 TDT2209

 
 
20h 21m 54.24s +30 16' 50.6" P.A. 51.00 sep 1.7 mag 11.44,12.20
 
 
Coord 2000
20219+3017
Discov num
TDT2209
Comp
Coord arcsec 2000
20 21 54.24 +30 16 50.6
Date first
1991
Date last
2015
Obs
2
Pa first
55
Pa last
51
P.A. Now (θ)
51°
Sep first
1.7
Sep last
1.7
Sep. Now (ρ)
1.7"
Mag pri
11.44
Mag sec
12.20
delta mag (ΔM)
0.76
Spectral class
Pri motion ra
-003
Sec motion ra
-003
Pri motion dec
-003
Sec motion dec
-003
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
50.5
Precise sep
1.733
Constellation
Cygnus
SAO
69907
Tycho2
2672-02151-1
Gaia DR2
88095281280
HD
334158
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20219+3017 TDT2209 1991 1 55 1.7 11.44 12.20 202154.24+301650.6
20219+3017 TDT2209 2015 2 51 1.7 11.44 12.20 202154.24+301650.6

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