12478+4539 COU2104

 
 
12h 47m 49.17s +45 38' 44.0" P.A. 306 sep 1.4 mag 10.02,11.67 Sp F8 dist. 166.94 pc (544.56 l.y.)
 
 
Coord 2000
12478+4539
Discov num
COU2104
Comp
Coord arcsec 2000
12 47 49.17 +45 38 44.0
Date first
1982
Date last
2011
Obs
6
Pa first
300
Pa last
306
P.A. Now (θ)
306°
Sep first
1.2
Sep last
1.4
Sep. Now (ρ)
1.4"
Mag pri
10.02
Mag sec
11.67
delta mag (ΔM)
1.65
Spectral class
F8 (yellow-white)
Pri motion ra
-031
Sec motion ra
-031
Pri motion dec
-013
Sec motion dec
-013
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
305.5
Precise sep
1.448
Cdsa2 id
COU 2104
Constellation
Canes Venatici
SAO
44329
HIP
62440
Tycho2
3459-00739-1
BD
BD+46 1820
Ra deg
12.796991666666667
De deg
45.64555555555555
Distance
166.94
Distance ly
544.56
last precise pa
305.5
last precise sep
1.448
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12478+4539 COU2104 1997 4 304 1.2 10.02 11.67 F8 124749.17+453844.0
12478+4539 COU2104 2011 6 306 1.4 10.02 11.67 F8 124749.17+453844.0

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