20521+1014 A  1212

 
 
20h 52m 07.69s +10 14' 18.3" P.A. 11 sep 0.6 mag 9.09,9.68 Sp A2
 
 
Coord 2000
20521+1014
Discov num
A  1212
Comp
Coord arcsec 2000
20 52 07.69 +10 14 18.3
Date first
1905
Date last
2016
Obs
21
Pa first
23
Pa last
11
P.A. Now (θ)
11°
Sep first
0.5
Sep last
0.6
Sep. Now (ρ)
0.6"
Mag pri
9.09
Mag sec
9.68
delta mag (ΔM)
0.59
Spectral class
A2 (white)
Pri motion ra
+016
Sec motion ra
+016
Pri motion dec
+005
Sec motion dec
+005
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
11.3
Precise sep
0.62
Constellation
Delphinus
Tycho2
1094-00904-1
HD
198740
last precise pa
11.3
last precise sep
0.62
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20521+1014 A 1212 1995 22 11 0.5 9.09 9.68 A2 205207.69+101418.3
20521+1014 A 1212 2016 21 11 0.6 9.09 9.68 A2 205207.69+101418.3

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