20111+4946 ES 2691

 
 
20h 11m 05.85s +49 45' 45.8" P.A. 314 sep 9.5 mag 9.01,12.90 Sp F2
 
 
Coord 2000
20111+4946
Discov num
ES 2691
Comp
Coord arcsec 2000
20 11 05.85 +49 45 45.8
Date first
1911
Date last
2015
Obs
9
Pa first
312
Pa last
314
P.A. Now (θ)
314°
Sep first
9.2
Sep last
9.5
Sep. Now (ρ)
9.5"
Mag pri
9.01
Mag sec
12.90
delta mag (ΔM)
3.89
Spectral class
F2 (yellow-white)
Pri motion ra
-013
Sec motion ra
Pri motion dec
-055
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
314.3
Precise sep
9.547
Constellation
Cygnus
SAO
49293
Tycho2
3567-01208-1
Gaia DR2
71885767552
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20111+4946 ES 2691 2000 2 316 9.4 9.01 12.90 F2 D 201105.85+494545.8
20111+4946 ES 2691 2003 3 315 9.6 9.01 12.90 F2 D 201105.85+494545.8
20111+4946 ES 2691 2010 4 315 9.1 9.01 12.90 F2 201105.85+494545.8
20111+4946 ES 2691 2015 4 314 9.5 9.01 12.90 F2 201105.85+494545.8

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