15537-0429 TOK 725 (HD 142269)
15h 53m 39.73s -04° 29' 19.1" P.A. 169.00 sep 0.0 mag 9.00,10.50 Sp F9V dist. 80.26 pc (261.81 l.y.)
| Coord 2000 |
15537-0429 |
|
Discov num |
TOK 725 |
|
Comp |
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Coord arcsec 2000 |
15 53 39.73 -04 29 19.1 |
|
| Date first |
2016 |
|
Date last |
2021 |
|
Obs |
8 |
|
| Pa first |
33 |
|
Pa last |
168.9 |
|
P.A. Now (θ) |
168.9° |
|
| Sep first |
0.1 |
|
Sep last |
0.041 |
|
Sep. Now (ρ) |
0.041" |
|
| Mag pri |
9.00 |
|
Mag sec |
10.50 |
|
delta mag (ΔM) |
1.5 |
|
Spectral class |
F9V (yellow-white) |
|
| Pri motion ra |
-096 |
|
Sec motion ra |
|
|
| Pri motion dec |
-049 |
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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 142269 |
|
Constellation |
Libra |
|
SAO |
140825 |
|
HIP |
77843 |
|
| Tycho2 |
5027-00283-1 |
|
Gaia DR2 |
4399151730744370048 |
|
HD |
142269 |
|
BD |
BD-04 3995 |
|
| Distance |
80.26 |
|
Distance ly |
261.81 |
|
ORBITAL ELEMENTS
| Period (P) | 9.96y | ± 0.52 |
Periastron (T) | 2020.83y | ± 0.05 |
Semi-major axis (a) | 0.082a | ± 0.002 |
| Eccentricity (e) | 0.57 | ± 0.03 |
Inclination (i) | 150° | ± 0 |
Longitude of periastron (ω) | 15.8° | ± 14.1 |
| Node (Ω) | 229.2° | ± 12.2 |
Notes | | |
Reference | Tok2021f | |
| Equinox | | |
Last observation | 2021 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
309.6 |
0.052 |
| 2001 |
202.5 |
0.035 |
| 2002 |
103.0 |
0.060 |
| 2003 |
72.7 |
0.093 |
| 2004 |
56.8 |
0.115 |
| 2005 |
44.9 |
0.126 |
| 2006 |
34.3 |
0.127 |
| 2007 |
23.1 |
0.120 |
| 2008 |
9.5 |
0.105 |
| 2009 |
349.3 |
0.080 |
| 2010 |
307.0 |
0.051 |
| 2011 |
196.7 |
0.034 |
| 2012 |
101.1 |
0.061 |
| 2013 |
71.9 |
0.094 |
| 2014 |
56.3 |
0.115 |
| 2015 |
44.5 |
0.126 |
| 2016 |
33.8 |
0.127 |
| 2017 |
22.6 |
0.120 |
| 2018 |
8.9 |
0.104 |
| 2019 |
348.2 |
0.079 |
| 2020 |
304.2 |
0.050 |
| 2021 |
190.9 |
0.035 |
| 2022 |
99.3 |
0.063 |
| 2023 |
71.2 |
0.095 |
| 2024 |
55.8 |
0.116 |
| 2025 |
44.1 |
0.126 |
| 2026 |
33.4 |
0.127 |
| 2027 |
22.1 |
0.119 |
| 2028 |
8.2 |
0.103 |
| 2029 |
347.1 |
0.078 |
| 2030 |
301.4 |
0.049 |
|
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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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