02164+0438 YR 8 (HD 14031)
02h 16m 26.37s +04° 37' 34.0" P.A. 144.00 sep 0.1 mag 8.60,9.50 Sp F0 dist. 146.2 pc (476.9 l.y.)
Coord 2000 |
02164+0438 |
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Discov num |
YR 8 |
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Comp |
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Coord arcsec 2000 |
02 16 26.37 +04 37 34.0 |
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Date first |
1999 |
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Date last |
2019 |
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Obs |
12 |
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Pa first |
331 |
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Pa last |
143.9 |
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P.A. Now (θ) |
143.9° |
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Sep first |
0.1 |
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Sep last |
0.097 |
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Sep. Now (ρ) |
0.097" |
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Mag pri |
8.60 |
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Mag sec |
9.50 |
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delta mag (ΔM) |
0.9 |
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Spectral class |
F0 (yellow-white) |
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Pri motion ra |
+159 |
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Sec motion ra |
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Pri motion dec |
-009 |
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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 14031 |
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Constellation |
Cetus |
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SAO |
110440 |
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HIP |
10596 |
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Tycho2 |
0041-00782-1 |
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Gaia DR2 |
2516741781941910784 |
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HD |
14031 |
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BD |
BD+03 313 |
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Distance |
146.2 |
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Distance ly |
476.9 |
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ORBITAL ELEMENTS
Period (P) | 48.9y | ± 6.7 |
Periastron (T) | 2055y | ± 21 |
Semi-major axis (a) | 0.108a | ± 0.0095 |
Eccentricity (e) | 0.077 | ± 0.4529 |
Inclination (i) | 101.7° | ± 1.9 |
Longitude of periastron (ω) | 82° | ± 24 |
Node (Ω) | 332.94° | ± 0.89 |
Notes | | |
Reference | Hor2021b | |
Equinox | | |
Last observation | | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
326.1 |
0.089 |
2001 |
323.7 |
0.080 |
2002 |
320.7 |
0.071 |
2003 |
316.5 |
0.059 |
2004 |
310.4 |
0.048 |
2005 |
300.1 |
0.036 |
2006 |
280.5 |
0.025 |
2007 |
244.2 |
0.020 |
2008 |
207.1 |
0.025 |
2009 |
186.7 |
0.035 |
2010 |
176.1 |
0.047 |
2011 |
169.9 |
0.059 |
2012 |
165.7 |
0.070 |
2013 |
162.6 |
0.080 |
2014 |
160.2 |
0.089 |
2015 |
158.1 |
0.096 |
2016 |
156.4 |
0.102 |
2017 |
154.8 |
0.106 |
2018 |
153.3 |
0.108 |
2019 |
151.8 |
0.109 |
2020 |
150.3 |
0.108 |
2021 |
148.8 |
0.105 |
2022 |
147.2 |
0.101 |
2023 |
145.4 |
0.095 |
2024 |
143.3 |
0.089 |
2025 |
140.9 |
0.081 |
2026 |
137.9 |
0.072 |
2027 |
134.0 |
0.062 |
2028 |
128.6 |
0.052 |
2029 |
120.7 |
0.042 |
2030 |
108.0 |
0.033 |
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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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