12493+2733 HJ  522AB (30 Com)

 
 
12H 49M 17.51S +27 33' 08.4" P.A. 25 SEP 41.9 MAG 5.80,13.45 SP A2V DIST. 92.94 PC (303.17 L.Y.)
 
 
Coord 2000
12493+2733
Discov num
HJ  522
Comp
AB
Coord arcsec 2000
12 49 17.51 +27 33 08.4
Date first
1827
Date last
2001
Obs
6
Pa first
3
Pa last
25
P.A. Now (θ)
25°
Sep first
37.5
Sep last
41.9
Sep. Now (ρ)
41.9"
Mag pri
5.80
Mag sec
13.45
delta mag (ΔM)
7.65
Spectral class
A2V (white)
Pri motion ra
-092
Sec motion ra
-010
Pri motion dec
+023
Sec motion dec
-028
Notes
N (See Notes)
rPM=1.018
This double is not physical.
 
 
12493+2733 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 82515 12493+2733 CHR 179 Aa,Ab 1988 1988 1 7 0.3 5.80
Show 30 Com 82515 12493+2733 HJ 522 AB 1827 2001 6 25 41.9 5.80 13.45 7.65 <===
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name
30 Com
Constellation
Coma Berenices
SAO
82515
HIP
62576
Tycho2
1992-02215-1
HD
111469
HR
4869
GC
17410
BD
BD+28 2153
Flamsteed
30 Comae Berenices
Flamsteed name
30 Com
Distance
92.94
Distance ly
303.17
last precise pa
25
last precise sep
41.909