12225+2551 SHJ 143AB (12 Com)

 
 
12h 22m 30.32s +25 50' 46.3" P.A. 57 sep 36.7 mag 4.86,11.80 Sp G0III-+A3 dist. 90.33 pc (294.66 l.y.)
 
 
Coord 2000
12225+2551
Discov num
SHJ 143
Comp
AB
Coord arcsec 2000
12 22 30.32 +25 50 46.3
Date first
1904
Date last
2012
Obs
9
Pa first
54
Pa last
57
P.A. Now (θ)
57°
Sep first
35.0
Sep last
36.7
Sep. Now (ρ)
36.7"
Mag pri
4.86
Mag sec
11.80
delta mag (ΔM)
6.94
Spectral class
G0III-+A3 (yellow/white)
Pri motion ra
-011
Sec motion ra
+018
Pri motion dec
-008
Sec motion dec
-009
Notes
N (See Notes)
rPM=1.442
This double is not physical.
 
 
12225+2551 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 12 Com 82273 12225+2551 SHJ 143 AB 1904 2012 9 57 36.7 4.86 11.80 6.94 <===
Show 82273 12225+2551 SHJ 143 AC 1783 2012 47 168 59.0 4.86 8.90 4.04
Show 82273 12225+2551 ARN 6 AD 1908 2012 11 132 213.1 4.86 10.10 5.24
Show 82278 12225+2551 SMR 57 DE 1950 2015 11 166 13.2 10.00 14.30 4.30
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
57.1
Precise sep
36.73
Name
12 Com
Constellation
Coma Berenices
SAO
82273
HIP
60351
Tycho2
1989-03210-1
HD
107700
HR
4707
GC
16873
BD
BD+26 2337
Flamsteed
12 Comae Berenices
Flamsteed name
12 Com
Distance
90.33
Distance ly
294.66
last precise pa
57.1
last precise sep
36.73
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12225+2551 SHJ 143 AB 2000 7 57 36.8 4.86 11.80 N D 122230.32+255046.3
12225+2551 SHJ 143 AB 2001 8 58 36.3 4.86 11.80 N D 122230.32+255046.3
12225+2551 SHJ 143 AB 2012 9 57 36.7 4.86 11.80 G0III-+A3 N D 122230.32+255046.3

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