20161+3837 SEI1049

 
 
20h 16m 09.38s +38 36' 58.9" P.A. 23 sep 17 mag 12.15,12.80
 
 
Coord 2000
20161+3837
Discov num
SEI1049
Comp
Coord arcsec 2000
20 16 09.38 +38 36 58.9
Date first
1896
Date last
2015
Obs
12
Pa first
24
Pa last
23
P.A. Now (θ)
23°
Sep first
17.7
Sep last
17.0
Sep. Now (ρ)
17"
Mag pri
12.15
Mag sec
12.80
delta mag (ΔM)
0.65
Spectral class
Pri motion ra
+005
Sec motion ra
+001
Pri motion dec
+006
Sec motion dec
+002
Notes
rPM=0.724
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
22.9
Precise sep
16.995
Constellation
Cygnus
Tycho2
3151-01837-1
Gaia DR2
51844604032
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20161+3837 SEI1049 1998 6 23 17.2 12.06 12.80 D 201609.38+383658.9
20161+3837 SEI1049 2002 7 23 17.1 12.06 12.80 D 201609.38+383658.9
20161+3837 SEI1049 2010 8 25 15.9 12.15 12.80 201609.38+383658.9
20161+3837 SEI1049 2015 8 23 17.0 12.15 12.80 201609.38+383658.9

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