20163+3924 SEI1051

 
 
20h 16m 18.85s +39 23' 30.2" P.A. 148 sep 22.3 mag 10.05,11.47 Sp A2
 
 
Coord 2000
20163+3924
Discov num
SEI1051
Comp
Coord arcsec 2000
20 16 18.85 +39 23 30.2
Date first
1892
Date last
2015
Obs
11
Pa first
149
Pa last
148
P.A. Now (θ)
148°
Sep first
22.2
Sep last
22.3
Sep. Now (ρ)
22.3"
Mag pri
10.05
Mag sec
11.47
delta mag (ΔM)
1.42
Spectral class
A2 (white)
Pri motion ra
+003
Sec motion ra
+002
Pri motion dec
+001
Sec motion dec
+002
Notes
rPM=0.447
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
147.7
Precise sep
22.328
Constellation
Cygnus
Tycho2
3155-00956-1
Gaia DR2
89282621440
HD
228681
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20163+3924 SEI1051 1998 4 148 22.4 10.05 11.60 A2 D 201618.85+392330.2
20163+3924 SEI1051 2002 5 148 22.3 10.05 11.60 A2 D 201618.85+392330.2
20163+3924 SEI1051 2010 6 148 22.3 10.05 11.47 A2 201618.85+392330.2
20163+3924 SEI1051 2015 7 148 22.3 10.05 11.47 A2 201618.85+392330.2

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