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
Constellation
Canes Venatici
SAO
44329
HIP
62440
Tycho2
3459-00739-1
BD
BD+46 1820
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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