09285+0903 STF1356 (Ome Leo)

 
 
09H 28M 27.41S +09 03' 24.4" P.A. 111.5 SEP 0.85 MAG 5.69,7.28 SP F9IV DIST. 33.17 PC (108.2 L.Y.)
 
 
Coord 2000
09285+0903
Discov num
STF1356
Comp
Coord arcsec 2000
09 28 27.41 +09 03 24.4
Date first
1825
Date last
2016
Obs
659
Pa first
154
Pa last
112
P.A. Now (θ)
111.5°
Sep first
1.0
Sep last
0.9
Sep. Now (ρ)
0.85"
Mag pri
5.69
Mag sec
7.28
delta mag (ΔM)
1.59
Spectral class
F9IV (yellow-white)
Pri motion ra
+050
Sec motion ra
+050
Pri motion dec
-005
Sec motion dec
-005
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name
Ome Leo
Constellation
Leo
SAO
117717
HIP
46454
Tycho2
0820-01635-1
HD
81858
HR
3754
GC
13062
ADS
7390
BD
BD+09 2188
Bayer
Omega Leonis
Bayer name
Ome Leo
Flamsteed
2 Leonis
Flamsteed name
2 Leo
Distance
33.17
Distance ly
108.2
last precise pa
112.3
last precise sep
0.91
 
 
ORBITAL ELEMENTS
 
 
Period (P)43089d (117.97y)± 26 Periastron (T)36649m (1959.219y)± 11 Semi-major axis (a)0.8599a± 0.0022
Eccentricity (e)0.5619± 0.0014 Inclination (i)65.347°± 0.093 Longitude of periastron (ω)302.54°± 0.14
Node (Ω)325.982°± 0.074 Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2008
label rho theta
2000 0.578 84.5
2001 0.593 86.8
2002 0.609 88.9
2003 0.624 91.0
2004 0.640 92.9
2005 0.656 94.8
2006 0.673 96.5
2007 0.689 98.2
2008 0.705 99.8
2009 0.721 101.3
2010 0.738 102.8
2011 0.754 104.2
2012 0.770 105.5
2013 0.785 106.8
2014 0.801 108.1
2015 0.816 109.3
2016 0.831 110.4
2017 0.846 111.5
2018 0.860 112.6
2019 0.874 113.6
2020 0.888 114.6
2021 0.901 115.6
2022 0.914 116.5
2023 0.926 117.5
2024 0.938 118.4
2025 0.950 119.2
2026 0.961 120.1
2027 0.971 120.9
2028 0.981 121.7
2029 0.990 122.5
2030 0.999 123.3

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic