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 |
|
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 |
|
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 |
|
Sep last |
0.12 |
|
Sep. Now (ρ) |
0.12" |
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| Mag pri |
7.90 |
|
Mag sec |
10.00 |
|
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 |
|
Constellation |
Leo |
|
SAO |
99848 |
|
HIP |
58006 |
|
| Tycho2 |
0870-00641-1 |
|
Gaia DR2 |
3923309692680224896 |
|
HD |
103311 |
|
GC |
16272 |
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| BD |
BD+14 2447 |
|
Distance |
88.81 |
|
Distance ly |
289.7 |
|
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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