12104+5455 ES   73BC

 
 
12h 10m 23.90s +54 55' 08.5" P.A. 306 sep 3.2 mag 11.60,12.10
 
 
Coord 2000
12104+5455
Discov num
ES   73
Comp
BC
Coord arcsec 2000
12 10 23.90 +54 55 08.5
Date first
1901
Date last
2015
Obs
27
Pa first
305
Pa last
306
P.A. Now (θ)
306°
Sep first
3.6
Sep last
3.2
Sep. Now (ρ)
3.2"
Mag pri
11.60
Mag sec
12.10
delta mag (ΔM)
0.5
Spectral class
Pri motion ra
Sec motion ra
-040
Pri motion dec
Sec motion dec
+033
Notes
R (Red magnitudes)
Nature of this double is uncertain.
 
 
12104+5455 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 12104+5455 ES 73 AB 1901 2015 26 29 37.3 9.05 11.60 2.55
Show 12104+5455 ES 73 BC 1901 2015 27 306 3.2 11.60 12.10 0.50 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
306.3
Precise sep
3.229
Constellation
Ursa Major
SAO
28274
Tycho2
3834-00304-1
Gaia DR2
08159507968
HD
238079
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12104+5455 ES 73 BC 2003 12 308 3.2 11.10 11.30 D 121023.67+545509.4
12104+5455 ES 73 BC 2007 16 306 3.2 11.10 11.30 D 121023.67+545509.4
12104+5455 ES 73 BC 2014 26 307 3.2 11.60 12.10 R 121023.90+545508.5
12104+5455 ES 73 BC 2015 27 306 3.2 11.60 12.10 R 121023.90+545508.5

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