15138+2536 COU 306

 
 
15h 13m 51.15s +25 34' 40.0" P.A. 247 sep 2.5 mag 13.00,13.30
 
 
Coord 2000
15138+2536
Discov num
COU 306
Comp
Coord arcsec 2000
15 13 51.15 +25 34 40.0
Date first
1968
Date last
2009
Obs
4
Pa first
252
Pa last
247
P.A. Now (θ)
247°
Sep first
2.1
Sep last
2.5
Sep. Now (ρ)
2.5"
Mag pri
13.00
Mag sec
13.30
delta mag (ΔM)
0.3
Spectral class
Pri motion ra
+007
Sec motion ra
Pri motion dec
+011
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
246.5
Precise sep
2.51
Constellation
Bootes
last precise pa
246.5
last precise sep
2.51
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15138+2536 COU 306 1968 1 252 2.1 12.00 12.30 151307.50+253600.0
15138+2536 COU 306 2004 3 248 2.5 13.00 13.30 151351.15+253440.0
15138+2536 COU 306 2009 4 247 2.5 13.00 13.30 151351.15+253440.0

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