10556+2445 STF1487 (54 Leo)

 
 
10h 55m 36.80s +24 44' 59.0" P.A. 113 sep 6.6 mag 4.48,6.30 Sp A1V+A2Vn dist. 87.95 pc (286.89 l.y.)
 
 
Coord 2000
10556+2445
Discov num
STF1487
Comp
Coord arcsec 2000
10 55 36.80 +24 44 59.0
Date first
1777
Date last
2017
Obs
263
Pa first
105
Pa last
113
P.A. Now (θ)
113°
Sep first
6.0
Sep last
6.6
Sep. Now (ρ)
6.6"
Mag pri
4.48
Mag sec
6.30
delta mag (ΔM)
1.82
Spectral class
A1V+A2Vn (white/white)
Pri motion ra
-072
Sec motion ra
-078
Pri motion dec
-013
Sec motion dec
-015
Notes
N (See Notes)
rPM=0.08 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
113.2
Precise sep
6.607
Name
54 Leo
Constellation
Leo
SAO
81583
HIP
53417
Tycho2
1978-02295-1
HD
94601
HR
4259
GC
15016
BD
BD+25 2314
Flamsteed
54 Leonis
Flamsteed name
54 Leo
Distance
87.95
Distance ly
286.89
last precise pa
113.2
last precise sep
6.607
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
10556+2445 STF1487 2008 231 113 6.9 4.48 6.30 A1V A2Vn N D 105536.80+244459.0
10556+2445 STF1487 2009 241 112 6.5 4.48 6.30 A1V A2Vn N D 105536.80+244459.0
10556+2445 STF1487 2011 242 113 6.4 4.48 6.30 A1V A2Vn N D 105536.80+244459.0
10556+2445 STF1487 2012 243 111 6.6 4.48 6.30 A1V A2Vn N D 105536.80+244459.0
10556+2445 STF1487 2013 246 113 6.4 4.48 6.30 A1V A2Vn N D 105536.80+244459.0
10556+2445 STF1487 2014 248 113 6.5 4.48 6.30 A1V A2Vn N D 105536.80+244459.0
10556+2445 STF1487 2015 250 112 6.7 4.48 6.30 A1V+A2Vn N 105536.80+244459.0
10556+2445 STF1487 2016 261 112 6.6 4.48 6.30 A1V+A2Vn N 105536.80+244459.0
10556+2445 STF1487 2017 263 113 6.6 4.48 6.30 A1V+A2Vn N 105536.80+244459.0

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