03423+3141 COU 691
03h 42m 15.91s +31° 40' 34.5" P.A. 270.00 sep 0.1 mag 9.00,9.00 Sp F8
| Coord 2000 |
03423+3141 |
|
Discov num |
COU 691 |
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Comp |
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Coord arcsec 2000 |
03 42 15.91 +31 40 34.5 |
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| Date first |
1972 |
|
Date last |
2014 |
|
Obs |
27 |
|
| Pa first |
48 |
|
Pa last |
269.5 |
|
P.A. Now (θ) |
33.6° |
|
| Sep first |
0.1 |
|
Sep last |
0.147 |
|
Sep. Now (ρ) |
0.087" |
|
| Mag pri |
9.00 |
|
Mag sec |
9.00 |
|
delta mag (ΔM) |
0 |
|
Spectral class |
F8 (yellow-white) |
|
| Pri motion ra |
+024 |
|
Sec motion ra |
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| Pri motion dec |
-036 |
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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
| Constellation |
Perseus |
|
Tycho2 |
2355-00291-1 |
|
Gaia DR2 |
216568193983095424 |
|
ORBITAL ELEMENTS
| Period (P) | 55.88y | |
Periastron (T) | 1961.93y | |
Semi-major axis (a) | 0.155a | |
| Eccentricity (e) | 0.141 | |
Inclination (i) | 66.2° | |
Longitude of periastron (ω) | 258.2° | |
| Node (Ω) | 66.5° | |
Notes | n | |
Reference | Doc2010d | |
| Equinox | 2000 | |
Last observation | 2007 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
220.8 |
0.119 |
| 2001 |
224.9 |
0.126 |
| 2002 |
228.6 |
0.133 |
| 2003 |
231.9 |
0.139 |
| 2004 |
235.0 |
0.144 |
| 2005 |
237.9 |
0.147 |
| 2006 |
240.7 |
0.149 |
| 2007 |
243.5 |
0.149 |
| 2008 |
246.3 |
0.148 |
| 2009 |
249.2 |
0.145 |
| 2010 |
252.3 |
0.140 |
| 2011 |
255.6 |
0.133 |
| 2012 |
259.3 |
0.124 |
| 2013 |
263.7 |
0.114 |
| 2014 |
269.0 |
0.103 |
| 2015 |
275.6 |
0.090 |
| 2016 |
284.4 |
0.078 |
| 2017 |
296.4 |
0.067 |
| 2018 |
312.6 |
0.058 |
| 2019 |
332.7 |
0.054 |
| 2020 |
353.5 |
0.056 |
| 2021 |
11.0 |
0.064 |
| 2022 |
24.1 |
0.075 |
| 2023 |
33.6 |
0.087 |
| 2024 |
40.8 |
0.100 |
| 2025 |
46.3 |
0.112 |
| 2026 |
50.8 |
0.123 |
| 2027 |
54.6 |
0.133 |
| 2028 |
57.9 |
0.141 |
| 2029 |
60.9 |
0.148 |
| 2030 |
63.6 |
0.153 |
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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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