19477+3531 ES 2244

 
 
19h 47m 39.59s +35 30' 42.0" P.A. 21 sep 3 mag 10.32,13.20 Sp A2
 
 
Coord 2000
19477+3531
Discov num
ES 2244
Comp
Coord arcsec 2000
19 47 39.59 +35 30 42.0
Date first
1926
Date last
2015
Obs
6
Pa first
25
Pa last
21
P.A. Now (θ)
21°
Sep first
3.4
Sep last
3.0
Sep. Now (ρ)
3"
Mag pri
10.32
Mag sec
13.20
delta mag (ΔM)
2.88
Spectral class
A2 (white)
Pri motion ra
-004
Sec motion ra
Pri motion dec
-006
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
20.5
Precise sep
2.98
Constellation
Cygnus
SAO
68864
Tycho2
2664-01287-1
Gaia DR2
62341106560
HD
225825
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19477+3531 ES 2244 1946 3 21 2.8 10.32 13.20 A2 194739.59+353042.0
19477+3531 ES 2244 2011 4 25 2.8 10.32 13.20 A2 194739.59+353042.0
19477+3531 ES 2244 2015 6 21 3.0 10.32 13.20 A2 194739.59+353042.0

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