18518+3105 COU1012

 
 
18h 51m 49.06s +31 05' 00.5" P.A. 239 sep 0.4 mag 9.60,10.90 Sp F2
 
 
Coord 2000
18518+3105
Discov num
COU1012
Comp
Coord arcsec 2000
18 51 49.06 +31 05 00.5
Date first
1973
Date last
2009
Obs
5
Pa first
238
Pa last
239
P.A. Now (θ)
239°
Sep first
0.3
Sep last
0.4
Sep. Now (ρ)
0.4"
Mag pri
9.60
Mag sec
10.90
delta mag (ΔM)
1.3
Spectral class
F2 (yellow-white)
Pri motion ra
+007
Sec motion ra
Pri motion dec
-025
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
238.9
Precise sep
0.43
Cdsa2 id
COU 1012
Constellation
Lyra
Ra deg
18.86362777777778
De deg
31.08347222222222
last precise pa
238.9
last precise sep
0.43
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18518+3105 COU1012 1996 3 243 0.4 9.60 10.90 F2 185149.06+310500.5
18518+3105 COU1012 2007 4 240 0.4 9.60 10.90 F2 185149.06+310500.5
18518+3105 COU1012 2009 5 239 0.4 9.60 10.90 F2 185149.06+310500.5

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