20368+2951 BTN   1

 
 
20h 36m 57.91s +29 49' 56.0" P.A. 2 sep 13.8 mag 10.38,11.41 Sp A
 
 
Coord 2000
20368+2951
Discov num
BTN   1
Comp
Coord arcsec 2000
20 36 57.91 +29 49 56.0
Date first
1894
Date last
2017
Obs
15
Pa first
13
Pa last
2
P.A. Now (θ)
Sep first
15.3
Sep last
13.8
Sep. Now (ρ)
13.8"
Mag pri
10.38
Mag sec
11.41
delta mag (ΔM)
1.03
Spectral class
A (white)
Pri motion ra
+027
Sec motion ra
+001
Pri motion dec
+006
Sec motion dec
-005
Notes
rPM=1.021
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
1.9
Precise sep
13.833
Constellation
Cygnus
Tycho2
2169-00386-1
Gaia DR2
64375762048
HD
334817
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20368+2951 BTN 1 1997 6 3 14.0 10.38 11.41 D 203657.91+294956.0
20368+2951 BTN 1 2011 7 2 13.9 10.38 11.41 D 203657.91+294956.0
20368+2951 BTN 1 2012 9 2 13.9 10.38 11.41 D 203657.91+294956.0
20368+2951 BTN 1 2015 10 1 13.8 10.38 11.41 A 203657.91+294956.0
20368+2951 BTN 1 2017 12 2 13.8 10.38 11.41 A 203657.91+294956.0

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