20164+5542 KR   49

 
 
20h 16m 24.03s +55 41' 48.8" P.A. 114 sep 1.7 mag 9.99,10.30 Sp A0
 
 
Coord 2000
20164+5542
Discov num
KR   49
Comp
Coord arcsec 2000
20 16 24.03 +55 41 48.8
Date first
1890
Date last
2017
Obs
15
Pa first
114
Pa last
114
P.A. Now (θ)
114°
Sep first
1.8
Sep last
1.7
Sep. Now (ρ)
1.7"
Mag pri
9.99
Mag sec
10.30
delta mag (ΔM)
0.31
Spectral class
A0 (white)
Pri motion ra
-001
Sec motion ra
-001
Pri motion dec
-006
Sec motion dec
-006
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
113.5
Precise sep
1.7
Constellation
Cygnus
SAO
32421
Tycho2
3941-00816-1
Gaia DR2
09074256512
HD
239364
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20164+5542 KR 49 1997 13 113 1.7 9.99 10.30 A0 201624.03+554148.8
20164+5542 KR 49 2015 14 113 1.7 9.99 10.30 A0 201624.03+554148.8

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