12539+7440 STF1698

 
 
12h 54m 47.82s +74 39' 06.1" P.A. 109 sep 10.1 mag 9.64,10.24 Sp A2
 
 
Coord 2000
12539+7440
Discov num
STF1698
Comp
Coord arcsec 2000
12 54 47.82 +74 39 06.1
Date first
1831
Date last
2010
Obs
26
Pa first
111
Pa last
109
P.A. Now (θ)
109°
Sep first
10.5
Sep last
10.1
Sep. Now (ρ)
10.1"
Mag pri
9.64
Mag sec
10.24
delta mag (ΔM)
0.6
Spectral class
A2 (white)
Pri motion ra
+024
Sec motion ra
+024
Pri motion dec
-012
Sec motion dec
-012
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Draco
SAO
7697
Tycho2
4407-01792-1
last precise pa
108.6
last precise sep
10.12
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12539+7440 STF1698 1999 22 108 10.1 9.64 10.24 A2 D 125447.77+743906.3
12539+7440 STF1698 2008 24 109 10.1 9.64 10.24 A2 N D 125447.82+743906.1
12539+7440 STF1698 2010 26 109 10.1 9.64 10.24 A2 N 125447.82+743906.1

If you need more information about this double, apply for a data request form to the WDS.