16115+0943 FIN 354 (HD 145589)
16h 11m 29.76s +09° 42' 43.2" P.A. 84.00 sep 0.1 mag 7.19,7.52 Sp F0IV dist. 162.34 pc (529.55 l.y.)
Coord 2000 |
16115+0943 |
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Discov num |
FIN 354 |
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Comp |
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Coord arcsec 2000 |
16 11 29.76 +09 42 43.2 |
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Date first |
1959 |
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Date last |
2018 |
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Obs |
46 |
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Pa first |
96 |
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Pa last |
84.1 |
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P.A. Now (θ) |
83.5° |
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Sep first |
0.1 |
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Sep last |
0.116 |
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Sep. Now (ρ) |
0.079" |
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Mag pri |
7.19 |
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Mag sec |
7.52 |
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delta mag (ΔM) |
0.33 |
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Spectral class |
F0IV (yellow-white) |
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Pri motion ra |
+026 |
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Sec motion ra |
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Pri motion dec |
-016 |
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Sec motion dec |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 145589 |
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Constellation |
Hercules |
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SAO |
121414 |
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HIP |
79337 |
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Tycho2 |
0949-00316-1 |
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Gaia DR2 |
4453281753333967104 |
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HD |
145589 |
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HR |
6032 |
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GC |
21774 |
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BD |
BD+10 2971 |
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Distance |
162.34 |
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Distance ly |
529.55 |
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ORBITAL ELEMENTS
Period (P) | 61.1y | ± 1.7 |
Periastron (T) | 1999.62y | ± 0.71 |
Semi-major axis (a) | 0.1281a | ± 0.0009 |
Eccentricity (e) | 0.066 | ± 0.047 |
Inclination (i) | 90.2° | ± 0.6 |
Longitude of periastron (ω) | 91.6° | ± 4.3 |
Node (Ω) | 263.8° | ± 0.3 |
Notes | n | |
Reference | Tok2019c | |
Equinox | | |
Last observation | 2018 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
86.5 |
0.009 |
2001 |
84.8 |
0.023 |
2002 |
84.4 |
0.036 |
2003 |
84.2 |
0.049 |
2004 |
84.1 |
0.062 |
2005 |
84.1 |
0.074 |
2006 |
84.0 |
0.085 |
2007 |
84.0 |
0.094 |
2008 |
83.9 |
0.103 |
2009 |
83.9 |
0.111 |
2010 |
83.9 |
0.117 |
2011 |
83.9 |
0.121 |
2012 |
83.8 |
0.125 |
2013 |
83.8 |
0.127 |
2014 |
83.8 |
0.128 |
2015 |
83.8 |
0.127 |
2016 |
83.7 |
0.125 |
2017 |
83.7 |
0.122 |
2018 |
83.7 |
0.117 |
2019 |
83.7 |
0.111 |
2020 |
83.6 |
0.105 |
2021 |
83.6 |
0.097 |
2022 |
83.6 |
0.088 |
2023 |
83.5 |
0.079 |
2024 |
83.5 |
0.069 |
2025 |
83.4 |
0.058 |
2026 |
83.3 |
0.047 |
2027 |
83.0 |
0.035 |
2028 |
82.6 |
0.023 |
2029 |
81.2 |
0.011 |
2030 |
279.3 |
0.002 |
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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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