14382+1402 TOK 406 (HD 128731)
14h 38m 14.49s +14° 01' 45.2" P.A. 4.00 sep 0.1 mag 8.50,10.00 Sp G5 dist. 47.24 pc (154.1 l.y.)
| Coord 2000 |
14382+1402 |
|
Discov num |
TOK 406 |
|
Comp |
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Coord arcsec 2000 |
14 38 14.49 +14 01 45.2 |
|
| Date first |
2014 |
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Date last |
2021 |
|
Obs |
12 |
|
| Pa first |
154 |
|
Pa last |
3.9 |
|
P.A. Now (θ) |
310.1° |
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| Sep first |
0.1 |
|
Sep last |
0.137 |
|
Sep. Now (ρ) |
0.066" |
|
| Mag pri |
8.50 |
|
Mag sec |
10.00 |
|
delta mag (ΔM) |
1.5 |
|
Spectral class |
G5 (yellow) |
|
| Pri motion ra |
-010 |
|
Sec motion ra |
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|
| Pri motion dec |
-155 |
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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 128731 |
|
Constellation |
Bootes |
|
SAO |
101120 |
|
HIP |
71572 |
|
| Tycho2 |
0916-01247-1 |
|
Gaia DR2 |
1179916752747453952 |
|
HD |
128731 |
|
BD |
BD+14 2761 |
|
| Distance |
47.24 |
|
Distance ly |
154.1 |
|
ORBITAL ELEMENTS
| Period (P) | 8.29y | ± 0.14 |
Periastron (T) | 2016.04y | ± 0.02 |
Semi-major axis (a) | 0.0998a | ± 0.0013 |
| Eccentricity (e) | 0.373 | ± 0.01 |
Inclination (i) | 130.5° | ± 1 |
Longitude of periastron (ω) | 168.3° | ± 2 |
| Node (Ω) | 7.3° | ± 1.4 |
Notes | n | |
Reference | Tok2020e | |
| Equinox | | |
Last observation | | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
159.0 |
0.061 |
| 2001 |
84.3 |
0.065 |
| 2002 |
43.8 |
0.100 |
| 2003 |
24.0 |
0.128 |
| 2004 |
9.4 |
0.136 |
| 2005 |
354.1 |
0.122 |
| 2006 |
329.7 |
0.085 |
| 2007 |
260.9 |
0.050 |
| 2008 |
178.5 |
0.063 |
| 2009 |
104.2 |
0.059 |
| 2010 |
52.1 |
0.090 |
| 2011 |
28.8 |
0.122 |
| 2012 |
13.5 |
0.136 |
| 2013 |
358.9 |
0.128 |
| 2014 |
338.8 |
0.098 |
| 2015 |
289.1 |
0.055 |
| 2016 |
197.7 |
0.061 |
| 2017 |
127.1 |
0.057 |
| 2018 |
62.8 |
0.079 |
| 2019 |
34.3 |
0.114 |
| 2020 |
17.6 |
0.134 |
| 2021 |
3.4 |
0.133 |
| 2022 |
345.9 |
0.109 |
| 2023 |
310.1 |
0.066 |
| 2024 |
219.9 |
0.055 |
| 2025 |
149.6 |
0.059 |
| 2026 |
76.7 |
0.069 |
| 2027 |
40.6 |
0.105 |
| 2028 |
21.9 |
0.130 |
| 2029 |
7.6 |
0.135 |
| 2030 |
351.8 |
0.118 |
|
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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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