20078+3617 SEI 903

 
 
20h 07m 51.30s +36 17' 46.6" P.A. 187 sep 12 mag 9.42,10.85 Sp A1IV
 
 
Coord 2000
20078+3617
Discov num
SEI 903
Comp
Coord arcsec 2000
20 07 51.30 +36 17 46.6
Date first
1895
Date last
2015
Obs
15
Pa first
187
Pa last
187
P.A. Now (θ)
187°
Sep first
11.4
Sep last
12.0
Sep. Now (ρ)
12"
Mag pri
9.42
Mag sec
10.85
delta mag (ΔM)
1.43
Spectral class
A1IV (white)
Pri motion ra
-002
Sec motion ra
-003
Pri motion dec
-001
Sec motion dec
-007
Notes
rPM=0.799
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
187.1
Precise sep
11.983
Constellation
Cygnus
Tycho2
2683-01514-1
Gaia DR2
40227204864
HD
227820
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20078+3617 SEI 903 1998 8 187 11.9 9.42 10.85 A1IV D 200751.30+361746.6
20078+3617 SEI 903 2002 9 187 11.9 9.42 10.85 A1IV D 200751.30+361746.6
20078+3617 SEI 903 2010 10 187 11.7 9.42 10.85 A1IV 200751.30+361746.6
20078+3617 SEI 903 2015 11 187 12.0 9.42 10.85 A1IV 200751.30+361746.6

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