05085+3755 COU 1531 (HD 32949)
05h 08m 28.28s +37° 54' 47.9" P.A. 46.00 sep 0.2 mag 8.50,10.50 Sp F8
Coord 2000 |
05085+3755 |
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Discov num |
COU1531 |
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Comp |
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Coord arcsec 2000 |
05 08 28.28 +37 54 47.9 |
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Date first |
1978 |
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Date last |
2010 |
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Obs |
11 |
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Pa first |
92 |
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Pa last |
45.7 |
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P.A. Now (θ) |
45.7° |
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Sep first |
0.4 |
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Sep last |
0.22 |
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Sep. Now (ρ) |
0.22" |
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Mag pri |
8.50 |
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Mag sec |
10.50 |
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delta mag (ΔM) |
2 |
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Spectral class |
F8 (yellow-white) |
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Pri motion ra |
-030 |
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Sec motion ra |
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Pri motion dec |
-028 |
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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
Name |
HD 32949 |
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Constellation |
Auriga |
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SAO |
57671 |
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Tycho2 |
2895-02584-1 |
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Gaia DR2 |
188109504459613312 |
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HD |
32949 |
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ORBITAL ELEMENTS
Period (P) | 203.5y | ± 40.8 |
Periastron (T) | 2024.3y | ± 0.7 |
Semi-major axis (a) | 0.448a | ± 0.057 |
Eccentricity (e) | 0.758 | ± 0.013 |
Inclination (i) | 123.8° | ± 1.3 |
Longitude of periastron (ω) | 70.3° | ± 2.4 |
Node (Ω) | 11.9° | ± 3.8 |
Notes | | |
Reference | Ksr2021 | |
Equinox | | |
Last observation | 2010 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
63.9 |
0.276 |
2001 |
62.2 |
0.272 |
2002 |
60.5 |
0.269 |
2003 |
58.7 |
0.265 |
2004 |
56.8 |
0.262 |
2005 |
54.9 |
0.258 |
2006 |
52.9 |
0.254 |
2007 |
50.9 |
0.250 |
2008 |
48.8 |
0.245 |
2009 |
46.6 |
0.240 |
2010 |
44.3 |
0.236 |
2011 |
41.9 |
0.230 |
2012 |
39.5 |
0.225 |
2013 |
36.8 |
0.218 |
2014 |
34.0 |
0.212 |
2015 |
31.1 |
0.204 |
2016 |
27.8 |
0.196 |
2017 |
24.3 |
0.186 |
2018 |
20.4 |
0.175 |
2019 |
15.8 |
0.163 |
2020 |
10.5 |
0.148 |
2021 |
3.9 |
0.131 |
2022 |
355.1 |
0.112 |
2023 |
342.5 |
0.091 |
2024 |
322.6 |
0.072 |
2025 |
292.6 |
0.062 |
2026 |
260.5 |
0.068 |
2027 |
238.0 |
0.086 |
2028 |
224.2 |
0.109 |
2029 |
215.3 |
0.133 |
2030 |
209.0 |
0.155 |
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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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