08251-4910 RST 321 (HD 71386)
08h 25m 04.14s -49° 09' 35.0" P.A. 266.00 sep 0.3 mag 8.27,8.94 Sp K0 dist. 33.38 pc (108.89 l.y.)
| Coord 2000 |
08251-4910 |
|
Discov num |
RST 321 |
|
Comp |
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Coord arcsec 2000 |
08 25 04.14 -49 09 35.0 |
|
| Date first |
1928 |
|
Date last |
2021 |
|
Obs |
50 |
|
| Pa first |
105 |
|
Pa last |
265.8 |
|
P.A. Now (θ) |
292.1° |
|
| Sep first |
0.2 |
|
Sep last |
0.269 |
|
Sep. Now (ρ) |
0.27" |
|
| Mag pri |
8.27 |
|
Mag sec |
8.94 |
|
delta mag (ΔM) |
0.67 |
|
Spectral class |
K0 (yellow-orange) |
|
| Pri motion ra |
+071 |
|
Sec motion ra |
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|
| Pri motion dec |
-106 |
|
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 71386 |
|
Constellation |
Vela |
|
SAO |
219900 |
|
HIP |
41261 |
|
| Tycho2 |
8157-01522-1 |
|
Gaia DR2 |
5515295666620325504 |
|
HD |
71386 |
|
CD |
CD-48 3774 |
|
| CP |
CP-48 1667 |
|
Distance |
33.38 |
|
Distance ly |
108.89 |
|
ORBITAL ELEMENTS
| Period (P) | 25.78y | ± 0.41 |
Periastron (T) | 2000.85y | ± 0.15 |
Semi-major axis (a) | 0.31a | ± 0.004 |
| Eccentricity (e) | 0.219 | ± 0.005 |
Inclination (i) | 40.9° | ± 0.7 |
Longitude of periastron (ω) | 232.1° | ± 4.1 |
| Node (Ω) | 128.6° | ± 0.8 |
Notes | n | |
Reference | Tok2015c | |
| Equinox | 2000 | |
Last observation | 2014 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
334.9 |
0.228 |
| 2001 |
356.3 |
0.204 |
| 2002 |
22.2 |
0.189 |
| 2003 |
49.5 |
0.195 |
| 2004 |
72.9 |
0.220 |
| 2005 |
90.7 |
0.253 |
| 2006 |
104.4 |
0.286 |
| 2007 |
115.4 |
0.314 |
| 2008 |
124.8 |
0.334 |
| 2009 |
133.3 |
0.347 |
| 2010 |
141.3 |
0.353 |
| 2011 |
149.3 |
0.352 |
| 2012 |
157.4 |
0.345 |
| 2013 |
166.0 |
0.334 |
| 2014 |
175.2 |
0.320 |
| 2015 |
185.4 |
0.304 |
| 2016 |
196.7 |
0.289 |
| 2017 |
209.1 |
0.276 |
| 2018 |
222.5 |
0.268 |
| 2019 |
236.6 |
0.264 |
| 2020 |
250.8 |
0.264 |
| 2021 |
264.9 |
0.267 |
| 2022 |
278.6 |
0.270 |
| 2023 |
292.1 |
0.270 |
| 2024 |
306.0 |
0.262 |
| 2025 |
321.2 |
0.246 |
| 2026 |
339.2 |
0.223 |
| 2027 |
1.6 |
0.199 |
| 2028 |
28.3 |
0.189 |
| 2029 |
55.1 |
0.199 |
| 2030 |
77.2 |
0.227 |
|
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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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