04406-0912 WOR 17
04h 40m 29.33s -09° 11' 45.0" P.A. 194.00 sep 2.0 mag 11.00,11.10 Sp M0V dist. 19.69 pc (64.23 l.y.)
| Coord 2000 |
04406-0912 |
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Discov num |
WOR 17 |
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Comp |
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Coord arcsec 2000 |
04 40 29.33 -09 11 45.0 |
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| Date first |
1960 |
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Date last |
2021 |
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Obs |
17 |
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| Pa first |
257 |
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Pa last |
194.2 |
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P.A. Now (θ) |
194.2° |
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| Sep first |
2.0 |
|
Sep last |
1.971 |
|
Sep. Now (ρ) |
1.971" |
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| Mag pri |
11.00 |
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Mag sec |
11.10 |
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delta mag (ΔM) |
0.1 |
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Spectral class |
M0V (red) |
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| Pri motion ra |
-112 |
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Sec motion ra |
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| Pri motion dec |
-112 |
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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
| Constellation |
Eridanus |
|
HIP |
21765 |
|
Tycho2 |
5321-01765-1 |
|
Gaia DR2 |
3185759697949251456 |
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| GL |
Wo 9163A |
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BD |
BD-09 956 |
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Distance |
19.69 |
|
Distance ly |
64.23 |
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ORBITAL ELEMENTS
| Period (P) | 215.5y | ± 20.8 |
Periastron (T) | 1994y | ± 0.35 |
Semi-major axis (a) | 1.919a | ± 0.086 |
| Eccentricity (e) | 0.813 | ± 0.014 |
Inclination (i) | 32.3° | ± 3.4 |
Longitude of periastron (ω) | 36.7° | ± 5.1 |
| Node (Ω) | 11.7° | ± 4.6 |
Notes | | |
Reference | Tok2020e | |
| Equinox | | |
Last observation | | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
150.2 |
0.666 |
| 2001 |
156.3 |
0.750 |
| 2002 |
161.1 |
0.832 |
| 2003 |
165.1 |
0.912 |
| 2004 |
168.5 |
0.988 |
| 2005 |
171.3 |
1.062 |
| 2006 |
173.9 |
1.133 |
| 2007 |
176.1 |
1.202 |
| 2008 |
178.1 |
1.268 |
| 2009 |
179.9 |
1.332 |
| 2010 |
181.5 |
1.394 |
| 2011 |
183.0 |
1.454 |
| 2012 |
184.4 |
1.512 |
| 2013 |
185.6 |
1.569 |
| 2014 |
186.8 |
1.623 |
| 2015 |
187.9 |
1.676 |
| 2016 |
189.0 |
1.728 |
| 2017 |
190.0 |
1.778 |
| 2018 |
190.9 |
1.826 |
| 2019 |
191.8 |
1.873 |
| 2020 |
192.6 |
1.919 |
| 2021 |
193.4 |
1.964 |
| 2022 |
194.2 |
2.008 |
| 2023 |
194.9 |
2.050 |
| 2024 |
195.6 |
2.091 |
| 2025 |
196.3 |
2.131 |
| 2026 |
197.0 |
2.170 |
| 2027 |
197.6 |
2.209 |
| 2028 |
198.2 |
2.246 |
| 2029 |
198.8 |
2.282 |
| 2030 |
199.4 |
2.317 |
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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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