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
Constellation
Coma Berenices
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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