09544+3041 COU1258

 
 
09h 54m 24.02s +30 41' 18.1" P.A. 232.40 sep 0.2 mag 9.92,9.13 Sp F5 dist. 146.63 pc (478.31 l.y.)
 
 
Coord 2000
09544+3041
Discov num
COU1258
Comp
Coord arcsec 2000
09 54 24.02 +30 41 18.1
Date first
1975
Date last
2015
Obs
14
Pa first
52
Pa last
230
P.A. Now (θ)
232.4°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.2"
Mag pri
9.92
Mag sec
9.13
delta mag (ΔM)
0.79
Spectral class
F5 (yellow-white)
Pri motion ra
-026
Sec motion ra
Pri motion dec
-038
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
229.8
Precise sep
0.171
Constellation
Leo
SAO
61748
HIP
48572
Tycho2
2502-00804-1
Gaia DR2
744874185280916224
HD
85708
BD
BD+31 2066
Distance
146.63
Distance ly
478.31
last precise pa
229.8
last precise sep
0.171
 
 
ORBITAL ELEMENTS
 
 
Period (P)96y± 13 Periastron (T)2096y± 39 Semi-major axis (a)0.198a± 0.017
Eccentricity (e)0.237± 0.092 Inclination (i)85.29°± 0.87 Longitude of periastron (ω)259°± 44
Node (Ω)232°± 26 Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2015
label rho theta
2000 0.031 74.9
2001 0.018 96.7
2002 0.013 159.4
2003 0.024 200.6
2004 0.039 213.4
2005 0.054 219.1
2006 0.069 222.3
2007 0.083 224.3
2008 0.097 225.8
2009 0.111 226.8
2010 0.123 227.7
2011 0.135 228.4
2012 0.145 229.0
2013 0.155 229.5
2014 0.164 230.0
2015 0.172 230.4
2016 0.178 230.8
2017 0.184 231.1
2018 0.189 231.5
2019 0.194 231.8
2020 0.197 232.1
2021 0.199 232.4
2022 0.201 232.7
2023 0.201 233.0
2024 0.201 233.3
2025 0.201 233.6
2026 0.199 233.9
2027 0.197 234.2
2028 0.194 234.5
2029 0.191 234.8
2030 0.187 235.1


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.



 
 


wds09544%2B3041a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
09544+3041 COU1258 1993 11 55 0.1 9.92 9.13 F5 095424.02+304118.1
09544+3041 COU1258 2015 13 230 0.2 9.92 9.13 F5 O 095424.02+304118.1

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