20211+3104 TDT2200

 
 
20h 21m 04.70s +31 03' 56.7" P.A. 55 sep 1.2 mag 11.44,11.56
 
 
Coord 2000
20211+3104
Discov num
TDT2200
Comp
Coord arcsec 2000
20 21 04.70 +31 03 56.7
Date first
1991
Date last
2009
Obs
2
Pa first
157
Pa last
55
P.A. Now (θ)
55°
Sep first
0.4
Sep last
1.2
Sep. Now (ρ)
1.2"
Mag pri
11.44
Mag sec
11.56
delta mag (ΔM)
0.12
Spectral class
Pri motion ra
-002
Sec motion ra
-002
Pri motion dec
-004
Sec motion dec
-004
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
54.6
Precise sep
1.23
Constellation
Cygnus
Tycho2
2672-01447-1
Gaia DR2
96757593728
HD
334133
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20211+3104 TDT2200 1991 1 157 0.4 11.44 11.56 202104.70+310356.7
20211+3104 TDT2200 2009 2 55 1.2 11.44 11.56 202104.70+310356.7

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