20309+5747 TDT2333

 
 
20h 30m 53.76s +57 46' 42.9" P.A. 138.00 sep 2.4 mag 10.30,12.19
 
 
Coord 2000
20309+5747
Discov num
TDT2333
Comp
Coord arcsec 2000
20 30 53.76 +57 46 42.9
Date first
1991
Date last
2015
Obs
3
Pa first
139
Pa last
138
P.A. Now (θ)
138°
Sep first
2.3
Sep last
2.4
Sep. Now (ρ)
2.4"
Mag pri
10.30
Mag sec
12.19
delta mag (ΔM)
1.89
Spectral class
Pri motion ra
-009
Sec motion ra
-009
Pri motion dec
+007
Sec motion dec
+007
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
138
Precise sep
2.422
Constellation
Cygnus
Tycho2
3958-00345-1
Gaia DR2
48560554496
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20309+5747 TDT2333 2003 2 140 2.5 10.30 12.19 203053.76+574642.9
20309+5747 TDT2333 2015 3 138 2.4 10.30 12.19 203053.76+574642.9

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