20051-0418 BU   56

 
 
20h 05m 07.26s -04 18' 29.3" P.A. 187 sep 1.3 mag 8.01,9.10 Sp F5
 
 
Coord 2000
20051-0418
Discov num
BU   56
Comp
Coord arcsec 2000
20 05 07.26 -04 18 29.3
Date first
1871
Date last
2012
Obs
48
Pa first
180
Pa last
187
P.A. Now (θ)
187°
Sep first
2.0
Sep last
1.3
Sep. Now (ρ)
1.3"
Mag pri
8.01
Mag sec
9.10
delta mag (ΔM)
1.09
Spectral class
F5 (yellow-white)
Pri motion ra
+063
Sec motion ra
+063
Pri motion dec
+052
Sec motion dec
+052
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
187.4
Precise sep
1.326
Cdsa2 id
BU 56
Constellation
Aquila
Tycho2
5168-01621-1
HD
190437
Ra deg
20.08535
De deg
-4.308138888888888
last precise pa
187.4
last precise sep
1.326
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20051-0418 BU 56 1996 56 184 1.4 8.01 9.10 F5 D 200507.26-041829.3
20051-0418 BU 56 2007 57 187 1.4 8.01 9.10 F5 D 200507.26-041829.3
20051-0418 BU 56 2012 48 187 1.3 8.01 9.10 F5 200507.26-041829.3

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