12309+2555 LAS   7

 
 
12h 30m 54.91s +25 55' 10.4" P.A. 231 sep 10.3 mag 16.57,16.86 Sp M3V+M3V
 
 
Coord 2000
12309+2555
Discov num
LAS   7
Comp
Coord arcsec 2000
12 30 54.91 +25 55 10.4
Date first
1955
Date last
2010
Obs
8
Pa first
231
Pa last
231
P.A. Now (θ)
231°
Sep first
10.2
Sep last
10.3
Sep. Now (ρ)
10.3"
Mag pri
16.57
Mag sec
16.86
delta mag (ΔM)
0.29
Spectral class
M3V+M3V (red/red)
Pri motion ra
-047
Sec motion ra
-046
Pri motion dec
-017
Sec motion dec
-021
Notes
N V (See Notes, Proper motion indicates physical)
rPM=0.082 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
231.4
Precise sep
10.25
Cdsa2 id
LAS 7
Constellation
Coma Berenices
Ra deg
12.515252777777778
De deg
25.919555555555558
last precise pa
231.4
last precise sep
10.25
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12309+2555 LAS 7 2005 6 231 10.3 16.57 16.86 M3V M3V NV 123054.91+255510.4
12309+2555 LAS 7 2010 8 231 9.5 16.57 16.86 M3V+M3V NV 123054.91+255510.4

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