05474-1032 MCA 22 (V1031 Ori)
05h 47m 26.90s -10° 31' 58.5" P.A. 291.00 sep 0.2 mag 6.34,7.79 Sp A4V dist. 204.92 pc (668.45 l.y.)
| Coord 2000 |
05474-1032 |
|
Discov num |
MCA 22 |
|
Comp |
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Coord arcsec 2000 |
05 47 26.90 -10 31 58.5 |
|
| Date first |
1980 |
|
Date last |
2019 |
|
Obs |
31 |
|
| Pa first |
284 |
|
Pa last |
291.3 |
|
P.A. Now (θ) |
294.7° |
|
| Sep first |
0.2 |
|
Sep last |
0.181 |
|
Sep. Now (ρ) |
0.173" |
|
| Mag pri |
6.34 |
|
Mag sec |
7.79 |
|
delta mag (ΔM) |
1.45 |
|
Spectral class |
A4V (white) |
|
| Pri motion ra |
-010 |
|
Sec motion ra |
|
|
| Pri motion dec |
-028 |
|
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
| Var name |
V1031 Ori |
|
Constellation |
Orion |
|
SAO |
150814 |
|
HIP |
27341 |
|
| Tycho2 |
5351-00761-1 |
|
Gaia DR2 |
3011007889677269888 |
|
HD |
38735 |
|
HR |
2001 |
|
| GC |
7258 |
|
BD |
BD-10 1281 |
|
Distance |
204.92 |
|
Distance ly |
668.45 |
|
ORBITAL ELEMENTS
| Period (P) | 31.3y | ± 3.4 |
Periastron (T) | 53025d (2004.053y) | ± 948 |
Semi-major axis (a) | 94.4m | ± 6.4 |
| Eccentricity (e) | 0.921 | ± 0.019 |
Inclination (i) | 46.9° | ± 13 |
Longitude of periastron (ω) | 160.8° | ± 27 |
| Node (Ω) | 305.2° | ± 11.3 |
Notes | n | |
Reference | Zas2014b | |
| Equinox | 2000 | |
Last observation | 2014 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
305.6 |
0.108 |
| 2001 |
308.3 |
0.091 |
| 2002 |
312.5 |
0.070 |
| 2003 |
321.2 |
0.044 |
| 2004 |
81.0 |
0.007 |
| 2005 |
251.4 |
0.032 |
| 2006 |
266.1 |
0.057 |
| 2007 |
272.2 |
0.077 |
| 2008 |
276.0 |
0.094 |
| 2009 |
278.6 |
0.108 |
| 2010 |
280.7 |
0.121 |
| 2011 |
282.4 |
0.132 |
| 2012 |
283.9 |
0.141 |
| 2013 |
285.2 |
0.149 |
| 2014 |
286.3 |
0.156 |
| 2015 |
287.4 |
0.162 |
| 2016 |
288.4 |
0.167 |
| 2017 |
289.4 |
0.171 |
| 2018 |
290.3 |
0.174 |
| 2019 |
291.2 |
0.175 |
| 2020 |
292.1 |
0.176 |
| 2021 |
293.0 |
0.176 |
| 2022 |
293.8 |
0.175 |
| 2023 |
294.7 |
0.173 |
| 2024 |
295.7 |
0.170 |
| 2025 |
296.6 |
0.166 |
| 2026 |
297.7 |
0.160 |
| 2027 |
298.8 |
0.154 |
| 2028 |
300.0 |
0.146 |
| 2029 |
301.4 |
0.136 |
| 2030 |
302.9 |
0.125 |
|
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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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