11539+1402 YSC 96 (HD 103311)
11h 53m 51.41s +14° 01' 46.7" P.A. 309.00 sep 0.1 mag 7.90,10.00 Sp F0 dist. 88.81 pc (289.7 l.y.)
Coord 2000 |
11539+1402 |
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Discov num |
YSC 96 |
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Comp |
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Coord arcsec 2000 |
11 53 51.41 +14 01 46.7 |
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Date first |
2010 |
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Date last |
2019 |
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Obs |
8 |
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Pa first |
230 |
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Pa last |
308.9 |
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P.A. Now (θ) |
308.9° |
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Sep first |
0.1 |
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Sep last |
0.12 |
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Sep. Now (ρ) |
0.12" |
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Mag pri |
7.90 |
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Mag sec |
10.00 |
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delta mag (ΔM) |
2.1 |
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Spectral class |
F0 (yellow-white) |
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Pri motion ra |
-061 |
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Sec motion ra |
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Pri motion dec |
-006 |
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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
Name |
HD 103311 |
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Constellation |
Leo |
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SAO |
99848 |
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HIP |
58006 |
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Tycho2 |
0870-00641-1 |
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Gaia DR2 |
3923309692680224896 |
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HD |
103311 |
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GC |
16272 |
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BD |
BD+14 2447 |
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Distance |
88.81 |
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Distance ly |
289.7 |
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ORBITAL ELEMENTS
Period (P) | 36.8y | ± 4.9 |
Periastron (T) | 2006.5y | ± 9.9 |
Semi-major axis (a) | 0.123a | ± 0.014 |
Eccentricity (e) | 0.13 | ± 0.13 |
Inclination (i) | 36° | ± 6.8 |
Longitude of periastron (ω) | 94° | ± 25 |
Node (Ω) | 86° | ± 13 |
Notes | | |
Reference | Hor2021b | |
Equinox | | |
Last observation | | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
99.2 |
0.116 |
2001 |
108.4 |
0.111 |
2002 |
118.6 |
0.105 |
2003 |
130.1 |
0.099 |
2004 |
143.1 |
0.093 |
2005 |
157.5 |
0.089 |
2006 |
173.0 |
0.087 |
2007 |
188.8 |
0.087 |
2008 |
203.8 |
0.091 |
2009 |
217.6 |
0.096 |
2010 |
229.8 |
0.102 |
2011 |
240.7 |
0.108 |
2012 |
250.4 |
0.113 |
2013 |
259.4 |
0.117 |
2014 |
267.8 |
0.120 |
2015 |
275.8 |
0.122 |
2016 |
283.7 |
0.123 |
2017 |
291.6 |
0.123 |
2018 |
299.6 |
0.121 |
2019 |
307.7 |
0.120 |
2020 |
316.2 |
0.118 |
2021 |
324.9 |
0.116 |
2022 |
333.9 |
0.114 |
2023 |
343.1 |
0.113 |
2024 |
352.5 |
0.112 |
2025 |
1.9 |
0.113 |
2026 |
11.2 |
0.114 |
2027 |
20.2 |
0.115 |
2028 |
29.0 |
0.117 |
2029 |
37.5 |
0.119 |
2030 |
45.7 |
0.122 |
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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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