20379+3909 SEI1198

 
 
20h 37m 53.75s +39 08' 55.0" P.A. 307.00 sep 13.9 mag 11.55,12.63
 
 
Coord 2000
20379+3909
Discov num
SEI1198
Comp
Coord arcsec 2000
20 37 53.75 +39 08 55.0
Date first
1895
Date last
2015
Obs
12
Pa first
295
Pa last
307
P.A. Now (θ)
307°
Sep first
14.4
Sep last
13.9
Sep. Now (ρ)
13.9"
Mag pri
11.55
Mag sec
12.63
delta mag (ΔM)
1.08
Spectral class
Pri motion ra
-007
Sec motion ra
+014
Pri motion dec
-011
Sec motion dec
+009
Notes
rPM=1.742
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
306.9
Precise sep
13.905
Constellation
Cygnus
Tycho2
3153-00521-1
Gaia DR2
2064352769279757952
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20379+3909 SEI1198 1998 5 305 14.0 11.55 12.63 D 203753.75+390855.0
20379+3909 SEI1198 2002 6 305 14.0 11.55 12.63 D 203753.75+390855.0
20379+3909 SEI1198 2010 7 306 13.9 11.55 12.63 203753.75+390855.0
20379+3909 SEI1198 2015 8 307 13.9 11.55 12.63 203753.75+390855.0

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