10091+2531 A  1988

 
 
10h 09m 04.77s +25 31' 03.2" P.A. 223 sep 0.4 mag 10.00,9.80 Sp K0 dist. 117.65 pc (383.77 l.y.)
 
 
Coord 2000
10091+2531
Discov num
A  1988
Comp
Coord arcsec 2000
10 09 04.77 +25 31 03.2
Date first
1909
Date last
2008
Obs
20
Pa first
186
Pa last
223
P.A. Now (θ)
223°
Sep first
0.8
Sep last
0.4
Sep. Now (ρ)
0.4"
Mag pri
10.00
Mag sec
9.80
delta mag (ΔM)
0.2
Spectral class
K0 (yellow-orange)
Pri motion ra
+003
Sec motion ra
+003
Pri motion dec
-057
Sec motion dec
-057
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
222.8
Precise sep
0.42
Constellation
Leo
SAO
81205
HIP
49719
Tycho2
1971-00955-1
HD
87956
BD
BD+26 2051
Distance
117.65
Distance ly
383.77
last precise pa
222.8
last precise sep
0.42
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
10091+2531 A 1988 1997 19 218 0.4 10.00 9.80 K0 D 100904.77+253103.2
10091+2531 A 1988 2008 20 223 0.4 10.00 9.80 K0 D 100904.77+253103.2

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