20057+3905 J  1072

 
 
20h 05m 41.91s +39 05' 36.0" P.A. 252 sep 4.1 mag 10.20,11.50 Sp A0
 
 
Coord 2000
20057+3905
Discov num
J  1072
Comp
Coord arcsec 2000
20 05 41.91 +39 05 36.0
Date first
1896
Date last
2015
Obs
8
Pa first
251
Pa last
252
P.A. Now (θ)
252°
Sep first
3.8
Sep last
4.1
Sep. Now (ρ)
4.1"
Mag pri
10.20
Mag sec
11.50
delta mag (ΔM)
1.3
Spectral class
A0 (white)
Pri motion ra
+011
Sec motion ra
Pri motion dec
+000
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
252.4
Precise sep
4.059
Constellation
Cygnus
Tycho2
3150-01279-1
Gaia DR2
48519516672
HD
227615
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20057+3905 J 1072 1998 6 253 4.1 10.30 11.80 D 200541.91+390536.0
20057+3905 J 1072 2002 7 252 4.1 10.30 11.80 D 200541.91+390536.0
20057+3905 J 1072 2015 8 252 4.1 10.20 11.50 A0 N 200541.91+390536.0

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