07560+2342 COU 929 (HD 64704)
07h 56m 02.81s +23° 41' 35.1" P.A. 54.00 sep 0.1 mag 7.90,8.57 Sp G0 dist. 60.53 pc (197.45 l.y.)
| Coord 2000 |
07560+2342 |
|
Discov num |
COU 929 |
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Comp |
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Coord arcsec 2000 |
07 56 02.81 +23 41 35.1 |
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| Date first |
1973 |
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Date last |
2022 |
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Obs |
67 |
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| Pa first |
33 |
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Pa last |
54.1 |
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P.A. Now (θ) |
64° |
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| Sep first |
0.2 |
|
Sep last |
0.149 |
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Sep. Now (ρ) |
0.136" |
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| Mag pri |
7.90 |
|
Mag sec |
8.57 |
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delta mag (ΔM) |
0.67 |
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Spectral class |
G0 (yellow) |
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| Pri motion ra |
-141 |
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Sec motion ra |
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| Pri motion dec |
-151 |
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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 64704 |
|
Constellation |
Gemini |
|
SAO |
79804 |
|
HIP |
38755 |
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| Tycho2 |
1925-01291-1 |
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HD |
64704 |
|
GC |
10717 |
|
BD |
BD+24 1805 |
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| Distance |
60.53 |
|
Distance ly |
197.45 |
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ORBITAL ELEMENTS
| Period (P) | 45.09y | ± 0.19 |
Periastron (T) | 1997.98y | ± 0.21 |
Semi-major axis (a) | 0.2555a | ± 0.0011 |
| Eccentricity (e) | 0.474 | ± 0.003 |
Inclination (i) | 71.8° | ± 0.2 |
Longitude of periastron (ω) | 70.6° | ± 0.7 |
| Node (Ω) | 186.7° | ± 0.2 |
Notes | n | |
Reference | Tok2020e | |
| Equinox | | |
Last observation | | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
336.4 |
0.082 |
| 2001 |
350.3 |
0.126 |
| 2002 |
357.1 |
0.165 |
| 2003 |
1.5 |
0.196 |
| 2004 |
4.8 |
0.221 |
| 2005 |
7.5 |
0.241 |
| 2006 |
9.8 |
0.255 |
| 2007 |
12.0 |
0.264 |
| 2008 |
14.0 |
0.270 |
| 2009 |
15.9 |
0.272 |
| 2010 |
17.8 |
0.272 |
| 2011 |
19.8 |
0.269 |
| 2012 |
21.8 |
0.264 |
| 2013 |
23.9 |
0.257 |
| 2014 |
26.2 |
0.248 |
| 2015 |
28.6 |
0.238 |
| 2016 |
31.3 |
0.227 |
| 2017 |
34.2 |
0.214 |
| 2018 |
37.5 |
0.201 |
| 2019 |
41.3 |
0.188 |
| 2020 |
45.7 |
0.174 |
| 2021 |
50.8 |
0.161 |
| 2022 |
56.8 |
0.148 |
| 2023 |
64.0 |
0.136 |
| 2024 |
72.4 |
0.126 |
| 2025 |
82.2 |
0.118 |
| 2026 |
93.0 |
0.113 |
| 2027 |
104.5 |
0.111 |
| 2028 |
115.9 |
0.114 |
| 2029 |
126.5 |
0.119 |
| 2030 |
135.9 |
0.128 |
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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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