09285+0903 STF 1356 (Ome Leo)

 
 
09h 28m 27.41s +09° 03' 24.4" P.A. 120.00 sep 0.9 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 2024 Obs 705
Pa first 154 Pa last 120 P.A. Now (θ) 154.6° (calc)
Sep first 1.0 Sep last 0.945 Sep. Now (ρ) 0.638" (calc)
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
Bayer greek ω Leo
 
 
ORBITAL ELEMENTS
 
 
Period (P)3089d (8.460000000000001y)± 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 Notesn ReferenceMut2010b
Equinox2000 Last observation2008 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000-01-01 143.2 0.906
2001-01-01 170.9 0.377
2002-01-01 332.7 0.491
2003-01-01 16.9 0.462
2004-01-01 68.2 0.499
2005-01-01 99.7 0.704
2006-01-01 116.5 0.913
2007-01-01 127.7 1.036
2008-01-01 137.8 1.003
2009-01-01 152.4 0.687
2010-01-01 298.9 0.268
2011-01-01 355.4 0.503
2012-01-01 45.8 0.452
2013-01-01 88.0 0.602
2014-01-01 109.9 0.824
2015-01-01 122.9 0.994
2016-01-01 133.1 1.043
2017-01-01 144.4 0.881
2018-01-01 178.9 0.308
2019-01-01 336.4 0.504
2020-01-01 21.3 0.456
2021-01-01 71.8 0.513
2022-01-01 101.6 0.724
2023-01-01 117.6 0.928
2024-01-01 128.6 1.040
2025-01-01 138.8 0.990
2026-01-01 154.5 0.639
2027-01-01 309.4 0.329
2028-01-01 359.2 0.495
2029-01-01 50.3 0.457
2030-01-01 90.5 0.621
2031-01-01 111.2 0.842
2032-01-01 123.8 1.004
2033-01-01 134.0 1.039
2034-01-01 145.6 0.852
2035-01-01 191.4 0.241
2036-01-01 340.0 0.512
2037-01-01 25.7 0.452
2038-01-01 75.2 0.528
2039-01-01 103.3 0.743
2040-01-01 118.6 0.942
2041-01-01 129.4 1.044
2042-01-01 139.7 0.975
2043-01-01 157.0 0.586
2044-01-01 316.7 0.382
2045-01-01 3.0 0.487
2046-01-01 54.7 0.464
2047-01-01 92.8 0.640
2048-01-01 112.5 0.859
2049-01-01 124.8 1.013
2050-01-01 134.8 1.034


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds09285%2B0903b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic