20381+2958 A   743

 
 
20h 38m 03.08s +29 57' 58.8" P.A. 309.00 sep 1.2 mag 9.90,13.10 Sp A7
 
 
Coord 2000
20381+2958
Discov num
A   743
Comp
Coord arcsec 2000
20 38 03.08 +29 57 58.8
Date first
1904
Date last
2007
Obs
9
Pa first
307
Pa last
309
P.A. Now (θ)
309°
Sep first
1.1
Sep last
1.2
Sep. Now (ρ)
1.2"
Mag pri
9.90
Mag sec
13.10
delta mag (ΔM)
3.2
Spectral class
A7 (white)
Pri motion ra
+005
Sec motion ra
Pri motion dec
-007
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
309
Precise sep
1.23
Constellation
Cygnus
SAO
88931
Tycho2
2169-01352-1
Gaia DR2
34207865600
HD
334811
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20381+2958 A 743 1972 8 310 1.0 9.90 13.10 A7 203803.08+295758.8
20381+2958 A 743 2007 9 309 1.2 9.90 13.10 A7 203803.08+295758.8

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