02107+4426 COU 1667
02h 10m 43.10s +44° 26' 18.2" P.A. 62.00 sep 0.1 mag 9.20,9.20 Sp F5
| Coord 2000 |
02107+4426 |
|
Discov num |
COU1667 |
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Comp |
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Coord arcsec 2000 |
02 10 43.10 +44 26 18.2 |
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| Date first |
1978 |
|
Date last |
1995 |
|
Obs |
12 |
|
| Pa first |
78 |
|
Pa last |
62 |
|
P.A. Now (θ) |
62° |
|
| Sep first |
0.2 |
|
Sep last |
0.131 |
|
Sep. Now (ρ) |
0.131" |
|
| Mag pri |
9.20 |
|
Mag sec |
9.20 |
|
delta mag (ΔM) |
0 |
|
Spectral class |
F5 (yellow-white) |
|
| Pri motion ra |
+043 |
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Sec motion ra |
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| Pri motion dec |
-002 |
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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
| Constellation |
Andromeda |
|
Tycho2 |
2842-01413-1 |
|
Gaia DR2 |
351805895113439488 |
|
ORBITAL ELEMENTS
| Period (P) | 223.2y | ± 28.2 |
Periastron (T) | 2009.8y | ± 0.6 |
Semi-major axis (a) | 0.218a | ± 0.019 |
| Eccentricity (e) | 0.596 | ± 0.014 |
Inclination (i) | 124.2° | ± 1.3 |
Longitude of periastron (ω) | 77.2° | ± 5.5 |
| Node (Ω) | 58.5° | ± 1.2 |
Notes | | |
Reference | BAE2021 | |
| Equinox | | |
Last observation | | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
51.8 |
0.111 |
| 2001 |
48.8 |
0.105 |
| 2002 |
45.5 |
0.099 |
| 2003 |
41.8 |
0.093 |
| 2004 |
37.5 |
0.087 |
| 2005 |
32.5 |
0.080 |
| 2006 |
26.5 |
0.073 |
| 2007 |
19.3 |
0.066 |
| 2008 |
10.7 |
0.060 |
| 2009 |
0.2 |
0.055 |
| 2010 |
347.9 |
0.051 |
| 2011 |
334.4 |
0.050 |
| 2012 |
320.6 |
0.051 |
| 2013 |
307.8 |
0.054 |
| 2014 |
296.7 |
0.058 |
| 2015 |
287.4 |
0.064 |
| 2016 |
279.8 |
0.071 |
| 2017 |
273.6 |
0.078 |
| 2018 |
268.4 |
0.086 |
| 2019 |
264.1 |
0.093 |
| 2020 |
260.4 |
0.100 |
| 2021 |
257.2 |
0.107 |
| 2022 |
254.3 |
0.114 |
| 2023 |
251.8 |
0.121 |
| 2024 |
249.6 |
0.127 |
| 2025 |
247.5 |
0.133 |
| 2026 |
245.6 |
0.139 |
| 2027 |
243.9 |
0.144 |
| 2028 |
242.3 |
0.149 |
| 2029 |
240.8 |
0.154 |
| 2030 |
239.4 |
0.159 |
| 2031 |
238.0 |
0.163 |
| 2032 |
236.8 |
0.168 |
| 2033 |
235.6 |
0.172 |
| 2034 |
234.4 |
0.176 |
| 2035 |
233.3 |
0.179 |
| 2036 |
232.3 |
0.183 |
| 2037 |
231.3 |
0.186 |
| 2038 |
230.3 |
0.189 |
| 2039 |
229.3 |
0.192 |
| 2040 |
228.4 |
0.195 |
| 2041 |
227.5 |
0.197 |
| 2042 |
226.6 |
0.200 |
| 2043 |
225.8 |
0.202 |
| 2044 |
224.9 |
0.205 |
| 2045 |
224.1 |
0.207 |
| 2046 |
223.3 |
0.209 |
| 2047 |
222.5 |
0.211 |
| 2048 |
221.8 |
0.212 |
| 2049 |
221.0 |
0.214 |
| 2050 |
220.2 |
0.216 |
|
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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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