20339+4034 AG  409

 
 
20h 33m 54.23s +40 33' 52.7" P.A. 267 sep 9.8 mag 9.40,9.92 Sp F5
 
 
Coord 2000
20339+4034
Discov num
AG  409
Comp
Coord arcsec 2000
20 33 54.23 +40 33 52.7
Date first
1892
Date last
2015
Obs
26
Pa first
267
Pa last
267
P.A. Now (θ)
267°
Sep first
9.3
Sep last
9.8
Sep. Now (ρ)
9.8"
Mag pri
9.40
Mag sec
9.92
delta mag (ΔM)
0.52
Spectral class
F5 (yellow-white)
Pri motion ra
+038
Sec motion ra
+041
Pri motion dec
+025
Sec motion dec
+026
Notes
rPM=0.065 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
266.6
Precise sep
9.822
Constellation
Cygnus
SAO
49798
Tycho2
3157-01013-1
Gaia DR2
27918023424
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20339+4034 AG 409 2004 19 267 9.9 9.40 9.92 F5 D 203354.23+403352.7
20339+4034 AG 409 2010 21 267 9.1 9.40 9.92 F5 203354.23+403352.7
20339+4034 AG 409 2015 22 267 9.8 9.40 9.92 F5 203354.23+403352.7

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