15306+3504 COU 974

 
 
15h 30m 33.20s +35 04' 23.6" P.A. 338 sep 1.5 mag 10.59,11.32
 
 
Coord 2000
15306+3504
Discov num
COU 974
Comp
Coord arcsec 2000
15 30 33.20 +35 04 23.6
Date first
1973
Date last
2015
Obs
7
Pa first
333
Pa last
338
P.A. Now (θ)
338°
Sep first
1.4
Sep last
1.5
Sep. Now (ρ)
1.5"
Mag pri
10.59
Mag sec
11.32
delta mag (ΔM)
0.73
Spectral class
Pri motion ra
-019
Sec motion ra
-019
Pri motion dec
+005
Sec motion dec
+005
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
337.7
Precise sep
1.54
Constellation
Bootes
Tycho2
2570-01275-1
last precise pa
337.7
last precise sep
1.54
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15306+3504 COU 974 1996 4 335 1.6 10.59 11.32 153033.20+350423.6
15306+3504 COU 974 2008 5 337 1.6 10.59 11.32 153033.20+350423.6
15306+3504 COU 974 2010 6 336 1.6 10.59 11.32 153033.20+350423.6
15306+3504 COU 974 2015 7 338 1.5 10.59 11.32 153033.20+350423.6

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