04293-3124 SIG 4
04h 29m 18.43s -31° 23' 56.8" P.A. 182.00 sep 0.5 mag 11.18,12.38 Sp M5.5V
| Coord 2000 |
04293-3124 |
|
Discov num |
SIG 4 |
|
Comp |
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Coord arcsec 2000 |
04 29 18.43 -31 23 56.8 |
|
| Date first |
2003 |
|
Date last |
2021 |
|
Obs |
10 |
|
| Pa first |
299 |
|
Pa last |
181.9 |
|
P.A. Now (θ) |
181.9° |
|
| Sep first |
0.5 |
|
Sep last |
0.497 |
|
Sep. Now (ρ) |
0.497" |
|
| Mag pri |
11.18 |
|
Mag sec |
12.38 |
|
delta mag (ΔM) |
1.2 |
|
Spectral class |
M5.5V (red) |
|
| Pri motion ra |
+086 |
|
Sec motion ra |
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|
| Pri motion dec |
+083 |
|
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
| Constellation |
Eridanus |
|
Gaia DR2 |
4872659466967320576 |
|
ORBITAL ELEMENTS
| Period (P) | 54.13y | |
Periastron (T) | 1978.22y | |
Semi-major axis (a) | 0.501a | |
| Eccentricity (e) | 0.056 | |
Inclination (i) | 180° | |
Longitude of periastron (ω) | 0° | |
| Node (Ω) | 105.1° | |
Notes | n | |
Reference | Tok2021f | |
| Equinox | | |
Last observation | 2020 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
316.8 |
0.524 |
| 2001 |
310.7 |
0.526 |
| 2002 |
304.7 |
0.527 |
| 2003 |
298.7 |
0.528 |
| 2004 |
292.8 |
0.529 |
| 2005 |
286.8 |
0.529 |
| 2006 |
280.8 |
0.529 |
| 2007 |
274.9 |
0.529 |
| 2008 |
268.9 |
0.528 |
| 2009 |
262.9 |
0.527 |
| 2010 |
256.9 |
0.525 |
| 2011 |
250.8 |
0.524 |
| 2012 |
244.7 |
0.522 |
| 2013 |
238.6 |
0.519 |
| 2014 |
232.4 |
0.517 |
| 2015 |
226.1 |
0.514 |
| 2016 |
219.8 |
0.511 |
| 2017 |
213.4 |
0.508 |
| 2018 |
206.9 |
0.505 |
| 2019 |
200.3 |
0.502 |
| 2020 |
193.6 |
0.499 |
| 2021 |
186.9 |
0.495 |
| 2022 |
180.1 |
0.492 |
| 2023 |
173.1 |
0.489 |
| 2024 |
166.1 |
0.486 |
| 2025 |
159.0 |
0.483 |
| 2026 |
151.9 |
0.481 |
| 2027 |
144.6 |
0.479 |
| 2028 |
137.3 |
0.477 |
| 2029 |
130.0 |
0.475 |
| 2030 |
122.6 |
0.474 |
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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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