12104+5455 ES   73AB

12h 10m 21.89s +54 54' 36.2" P.A. 29 sep 37.3 mag 9.05,11.60 Sp K0

Coord 2000
12104+5455
Discov num
ES   73
Comp
AB
Coord arcsec 2000
12 10 21.89 +54 54 36.2
Date first
1901
Date last
2014
Obs
25
Pa first
21
Pa last
29
P.A. Now (θ)
29°
Sep first
30.6
Sep last
37.3
Sep. Now (ρ)
37.3"
Mag pri
9.05
Mag sec
11.60
delta mag (ΔM)
2.55
Spectral class
K0 (yellow-orange)
Pri motion ra
-021
Sec motion ra
Pri motion dec
-039
Sec motion dec
Notes


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 28274 12104+5455 ES 73 AB 1901 2014 25 29 37.3 9.05 11.60 2.55 <===
Show 12104+5455 ES 73 BC 1901 2014 26 307 3.2 11.60 12.10 0.50
Triple system
3 visible stars in this system



OTHER CATALOGS AND DESIGNATIONS

Precise pa
28.8
Precise sep
37.276
Constellation
Ursa Major
SAO
28274
Tycho2
3834-00304-1
HD
238079
last precise pa
28.8
last precise sep
37.276




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 AB 2007 9 26 37.1 9.28 11.60 K0 121021.89+545436.2
12104+5455 ES 73 AB 2014 25 29 37.3 9.05 11.60 K0 121021.89+545436.2

If you need more information about this double, apply for a data request form to the WDS.