10261+1821 COU 291

 
 
10h 26m 03.07s +18 20' 58.6" P.A. 66 sep 0.8 mag 10.00,12.10 Sp K0
 
 
Coord 2000
10261+1821
Discov num
COU 291
Comp
Coord arcsec 2000
10 26 03.07 +18 20 58.6
Date first
1968
Date last
2010
Obs
4
Pa first
63
Pa last
66
P.A. Now (θ)
66°
Sep first
0.7
Sep last
0.8
Sep. Now (ρ)
0.8"
Mag pri
10.00
Mag sec
12.10
delta mag (ΔM)
2.1
Spectral class
K0 (yellow-orange)
Pri motion ra
-081
Sec motion ra
Pri motion dec
-016
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
66.4
Precise sep
0.81
Constellation
Leo
Tycho2
1423-00357-1
last precise pa
66.4
last precise sep
0.81
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
10261+1821 COU 291 1980 2 69 0.7 10.00 12.10 K0 102603.07+182058.6
10261+1821 COU 291 2008 3 65 0.8 10.00 12.10 K0 102603.07+182058.6
10261+1821 COU 291 2010 4 66 0.8 10.00 12.10 K0 102603.07+182058.6

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