10320+0831 YSC 39
10h 32m 00.66s +08° 30' 38.2" P.A. 22.00 sep 0.8 mag 10.78, Sp K5 dist. 34.22 pc (111.63 l.y.)
Coord 2000 |
10320+0831 |
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Discov num |
YSC 39 |
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Comp |
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Coord arcsec 2000 |
10 32 00.66 +08 30 38.2 |
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Date first |
2007 |
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Date last |
2021 |
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Obs |
14 |
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Pa first |
53 |
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Pa last |
22.1 |
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P.A. Now (θ) |
22.1° |
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Sep first |
0.8 |
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Sep last |
0.785 |
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Sep. Now (ρ) |
0.785" |
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Mag pri |
10.78 |
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Mag sec |
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delta mag (ΔM) |
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Spectral class |
K5 (yellow-orange) |
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Pri motion ra |
+068 |
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Sec motion ra |
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Pri motion dec |
-196 |
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Sec motion dec |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Leo |
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HIP |
51571 |
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Gaia DR2 |
3863754056950355840 |
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BD |
BD+09 2366 |
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Distance |
34.22 |
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Distance ly |
111.63 |
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ORBITAL ELEMENTS
Period (P) | 178.9y | ± 5.4 |
Periastron (T) | 2000.07y | ± 0.6 |
Semi-major axis (a) | 1.083a | ± 0.015 |
Eccentricity (e) | 0.274 | ± 0.012 |
Inclination (i) | 129.5° | ± 1.6 |
Longitude of periastron (ω) | 331.4° | ± 2 |
Node (Ω) | 50.95° | ± 0.79 |
Notes | | |
Reference | Hor2021b | |
Equinox | | |
Last observation | | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
70.3 |
0.730 |
2001 |
67.6 |
0.743 |
2002 |
65.0 |
0.755 |
2003 |
62.5 |
0.767 |
2004 |
60.1 |
0.777 |
2005 |
57.8 |
0.787 |
2006 |
55.4 |
0.795 |
2007 |
53.2 |
0.802 |
2008 |
50.9 |
0.807 |
2009 |
48.7 |
0.812 |
2010 |
46.6 |
0.815 |
2011 |
44.4 |
0.818 |
2012 |
42.2 |
0.819 |
2013 |
40.1 |
0.819 |
2014 |
37.9 |
0.818 |
2015 |
35.8 |
0.816 |
2016 |
33.6 |
0.813 |
2017 |
31.4 |
0.810 |
2018 |
29.2 |
0.806 |
2019 |
27.0 |
0.801 |
2020 |
24.7 |
0.795 |
2021 |
22.4 |
0.790 |
2022 |
20.1 |
0.783 |
2023 |
17.7 |
0.777 |
2024 |
15.3 |
0.770 |
2025 |
12.8 |
0.764 |
2026 |
10.3 |
0.757 |
2027 |
7.8 |
0.751 |
2028 |
5.2 |
0.745 |
2029 |
2.6 |
0.739 |
2030 |
359.9 |
0.734 |
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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