01398-5612 DUN 5 (p Eri)
01h 39m 47.83s -56° 11' 36.0" P.A. 185.00 sep 11.3 mag 5.78,5.90 Sp K0V+K5V dist. 7.82 pc (25.51 l.y.)
| Coord 2000 |
01398-5612 |
|
Discov num |
DUN 5 |
|
Comp |
|
|
Coord arcsec 2000 |
01 39 47.83 -56 11 36.0 |
|
| Date first |
1825 |
|
Date last |
2024 |
|
Obs |
178 |
|
| Pa first |
343 |
|
Pa last |
184.6 |
|
P.A. Now (θ) |
184.6° |
|
| Sep first |
2.5 |
|
Sep last |
11.321 |
|
Sep. Now (ρ) |
11.321" |
|
| Mag pri |
5.78 |
|
Mag sec |
5.90 |
|
delta mag (ΔM) |
0.12 |
|
Spectral class |
K0V+K5V (yellow-orange/yellow-orange) |
|
| Pri motion ra |
+262 |
|
Sec motion ra |
+309 |
|
| Pri motion dec |
+015 |
|
Sec motion dec |
+011 |
|
| Notes |
N
O
T
(See Notes, Orbital solution, Parallax indicates physical) |
|
rPM=0.153 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Var name |
p Eri |
|
Constellation |
Eridanus |
|
SAO |
232490 |
|
HIP |
7751 |
|
| Tycho2 |
8478-01394-2 |
|
Gaia DR2 |
4911306239828325632 |
|
HD |
10360 |
|
HR |
486 |
|
| GC |
2030 |
|
CD |
CD-56 328 |
|
CP |
CP-56 329 |
|
Distance |
7.82 |
|
| Distance ly |
25.51 |
|
ORBITAL ELEMENTS
| Period (P) | 467.699574y | |
Periastron (T) | 1806.598955y | |
Semi-major axis (a) | 7.95563a | |
| Eccentricity (e) | 0.462287 | |
Inclination (i) | 135.4299° | |
Longitude of periastron (ω) | 18.0095° | |
| Node (Ω) | 13.8831° | |
Notes | n | |
Reference | Kpp2020f | |
| Equinox | | |
Last observation | | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
190.4 |
11.358 |
| 2001 |
190.1 |
11.368 |
| 2002 |
189.9 |
11.377 |
| 2003 |
189.7 |
11.385 |
| 2004 |
189.4 |
11.393 |
| 2005 |
189.2 |
11.401 |
| 2006 |
189.0 |
11.408 |
| 2007 |
188.7 |
11.415 |
| 2008 |
188.5 |
11.421 |
| 2009 |
188.3 |
11.426 |
| 2010 |
188.0 |
11.431 |
| 2011 |
187.8 |
11.436 |
| 2012 |
187.5 |
11.440 |
| 2013 |
187.3 |
11.444 |
| 2014 |
187.1 |
11.447 |
| 2015 |
186.8 |
11.450 |
| 2016 |
186.6 |
11.452 |
| 2017 |
186.4 |
11.453 |
| 2018 |
186.1 |
11.455 |
| 2019 |
185.9 |
11.455 |
| 2020 |
185.7 |
11.455 |
| 2021 |
185.4 |
11.455 |
| 2022 |
185.2 |
11.455 |
| 2023 |
185.0 |
11.453 |
| 2024 |
184.7 |
11.452 |
| 2025 |
184.5 |
11.449 |
| 2026 |
184.3 |
11.447 |
| 2027 |
184.0 |
11.444 |
| 2028 |
183.8 |
11.440 |
| 2029 |
183.6 |
11.436 |
| 2030 |
183.3 |
11.432 |
| 2031 |
183.1 |
11.427 |
| 2032 |
182.8 |
11.421 |
| 2033 |
182.6 |
11.415 |
| 2034 |
182.4 |
11.409 |
| 2035 |
182.1 |
11.402 |
| 2036 |
181.9 |
11.394 |
| 2037 |
181.7 |
11.387 |
| 2038 |
181.4 |
11.378 |
| 2039 |
181.2 |
11.370 |
| 2040 |
181.0 |
11.361 |
| 2041 |
180.7 |
11.351 |
| 2042 |
180.5 |
11.341 |
| 2043 |
180.2 |
11.330 |
| 2044 |
180.0 |
11.319 |
| 2045 |
179.8 |
11.308 |
| 2046 |
179.5 |
11.296 |
| 2047 |
179.3 |
11.284 |
| 2048 |
179.0 |
11.271 |
| 2049 |
178.8 |
11.257 |
| 2050 |
178.5 |
11.244 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
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