12439+4950 BEM   1

 
 
12h 43m 59.07s +49 50' 40.4" P.A. 204 sep 9.6 mag 11.40,12.20
 
 
Coord 2000
12439+4950
Discov num
BEM   1
Comp
Coord arcsec 2000
12 43 59.07 +49 50 40.4
Date first
1899
Date last
2017
Obs
8
Pa first
203
Pa last
204
P.A. Now (θ)
204°
Sep first
9.4
Sep last
9.6
Sep. Now (ρ)
9.6"
Mag pri
11.40
Mag sec
12.20
delta mag (ΔM)
0.8
Spectral class
Pri motion ra
-006
Sec motion ra
-010
Pri motion dec
+012
Sec motion dec
+010
Notes
rPM=0.316
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
203.9
Precise sep
9.602
Constellation
Canes Venatici
Tycho2
3458-00520-1
last precise pa
203.9
last precise sep
9.602
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12439+4950 BEM 1 1999 3 203 9.6 11.44 10.70 D 124359.07+495040.4
12439+4950 BEM 1 2003 4 203 9.6 11.44 10.70 D 124359.07+495040.4
12439+4950 BEM 1 2011 6 203 9.6 11.44 10.70 124359.07+495040.4
12439+4950 BEM 1 2017 8 204 9.6 11.40 12.20 124359.07+495040.4

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