03520+2801 COU 696 (HD 282993)
03h 51m 59.83s +28° 00' 52.6" P.A. 22.00 sep 0.3 mag 9.20,9.20 Sp F2
| Coord 2000 |
03520+2801 |
|
Discov num |
COU 696 |
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Comp |
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Coord arcsec 2000 |
03 51 59.83 +28 00 52.6 |
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| Date first |
1971 |
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Date last |
2009 |
|
Obs |
15 |
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| Pa first |
72 |
|
Pa last |
21.6 |
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P.A. Now (θ) |
21.6° |
|
| Sep first |
0.2 |
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Sep last |
0.26 |
|
Sep. Now (ρ) |
0.26" |
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| Mag pri |
9.20 |
|
Mag sec |
9.20 |
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delta mag (ΔM) |
0 |
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Spectral class |
F2 (yellow-white) |
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| Pri motion ra |
-006 |
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Sec motion ra |
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| Pri motion dec |
-013 |
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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 282993 |
|
Constellation |
Taurus |
|
Tycho2 |
1808-02467-1 |
|
Gaia DR2 |
70853014629080960 |
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| HD |
282993 |
|
ORBITAL ELEMENTS
| Period (P) | 177y | ± 30 |
Periastron (T) | 2007.9y | ± 0.3 |
Semi-major axis (a) | 0.366a | ± 0.028 |
| Eccentricity (e) | 0.671 | ± 0.026 |
Inclination (i) | 107.3° | ± 0.4 |
Longitude of periastron (ω) | 74.2° | ± 6.4 |
| Node (Ω) | 33.7° | ± 1.6 |
Notes | | |
Reference | BAE2021 | |
| Equinox | | |
Last observation | | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
35.8 |
0.181 |
| 2001 |
33.8 |
0.171 |
| 2002 |
31.6 |
0.159 |
| 2003 |
29.0 |
0.144 |
| 2004 |
25.7 |
0.128 |
| 2005 |
21.4 |
0.109 |
| 2006 |
15.2 |
0.088 |
| 2007 |
4.7 |
0.066 |
| 2008 |
344.5 |
0.046 |
| 2009 |
305.8 |
0.036 |
| 2010 |
267.0 |
0.046 |
| 2011 |
246.8 |
0.066 |
| 2012 |
236.5 |
0.089 |
| 2013 |
230.4 |
0.111 |
| 2014 |
226.3 |
0.132 |
| 2015 |
223.4 |
0.152 |
| 2016 |
221.1 |
0.171 |
| 2017 |
219.2 |
0.188 |
| 2018 |
217.6 |
0.203 |
| 2019 |
216.3 |
0.218 |
| 2020 |
215.1 |
0.231 |
| 2021 |
214.0 |
0.243 |
| 2022 |
213.0 |
0.254 |
| 2023 |
212.1 |
0.264 |
| 2024 |
211.3 |
0.274 |
| 2025 |
210.5 |
0.282 |
| 2026 |
209.8 |
0.290 |
| 2027 |
209.1 |
0.298 |
| 2028 |
208.4 |
0.304 |
| 2029 |
207.8 |
0.311 |
| 2030 |
207.2 |
0.316 |
|
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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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