21013+1757 BOY  11

 
 
21h 01m 14.68s +17 56' 55.5" P.A. 94 sep 0.3 mag 20.84,21.43
 
 
Coord 2000
21013+1757
Discov num
BOY  11
Comp
Coord arcsec 2000
21 01 14.68 +17 56 55.5
Date first
2001
Date last
2008
Obs
3
Pa first
108
Pa last
94
P.A. Now (θ)
94°
Sep first
0.2
Sep last
0.3
Sep. Now (ρ)
0.3"
Mag pri
20.84
Mag sec
21.43
delta mag (ΔM)
0.59
Spectral class
Pri motion ra
+000
Sec motion ra
Pri motion dec
-011
Sec motion dec
Notes
R (Red magnitudes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
94.4
Precise sep
0.323
Constellation
Delphinus
last precise pa
94.4
last precise sep
0.323
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21013+1757 BOY 11 2001 2 107 0.2 20.84 21.43 DR 210114.68+175655.5
21013+1757 BOY 11 2008 3 94 0.3 20.84 21.43 DR 210114.68+175655.5
21013+1757 BOY 11 2010 4 0 0.0 20.84 21.43 DR 210114.68+175655.5

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