12289+2555 BU 1080AD

 
 
12h 28m 54.72s +25 54' 46.4" P.A. 269 sep 324.2 mag 5.23,11.63 Sp A0p dist. 72.89 pc (237.77 l.y.)
 
 
Coord 2000
12289+2555
Discov num
BU 1080
Comp
AD
Coord arcsec 2000
12 28 54.72 +25 54 46.4
Date first
1896
Date last
2001
Obs
6
Pa first
270
Pa last
269
P.A. Now (θ)
269°
Sep first
326.0
Sep last
324.2
Sep. Now (ρ)
324.2"
Mag pri
5.23
Mag sec
11.63
delta mag (ΔM)
6.4
Spectral class
A0p (white)
Pri motion ra
-022
Sec motion ra
-006
Pri motion dec
-016
Sec motion dec
-028
Notes
N (See Notes)
rPM=0.698
Nature of this double is uncertain.
 
 
12289+2555 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 17 Com 82330 12289+2555 STFA 21 AB 1836 2012 46 250 144.9 5.23 6.64 1.41
Show 82330 12289+2555 BU 1080 AD 1896 2001 6 269 324.2 5.23 11.63 6.40 <===
Show 82330 12289+2555 SLE 898 AE 1985 2001 3 270 447.5 5.23 13.60 8.37
Show 82330 12289+2555 SLE 898 AF 1985 2001 3 146 125.9 5.23 13.92 8.69
Show 82328 12289+2555 BU 1080 BC 1889 2009 3 175 1.5 6.64 13.70 7.06
Show 82328 12289+2555 BU 1080 BD 1896 2001 6 284 193.0 6.64 11.63 4.99
Sextuple system
6 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
269.4
Precise sep
324.184
Var name
AI Com
Cdsa2 id
BU 1080 AD
Constellation
Coma Berenices
SAO
82330
HIP
60904
Tycho2
1989-03206-1
HD
108662
HR
4752
GC
17012
BD
BD+26 2354
Flamsteed
17 Comae Berenices
Flamsteed name
17 Com
Ra deg
12.481866666666667
De deg
25.912888888888887
Distance
72.89
Distance ly
237.77
last precise pa
269.4
last precise sep
324.184
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12289+2555 BU 1080 AD 2000 5 270 324.2 5.23 13.70 A0p D 122854.72+255446.4
12289+2555 BU 1080 AD 2001 6 270 324.2 5.23 13.70 A0p N D 122854.72+255446.4

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