08423+2002 COU 382
08h 42m 20.12s +20° 02' 11.7" P.A. 348.00 sep 0.3 mag 10.40,10.50 Sp F6V
| Coord 2000 |
08423+2002 |
|
Discov num |
COU 382 |
|
Comp |
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|
Coord arcsec 2000 |
08 42 20.12 +20 02 11.7 |
|
| Date first |
1969 |
|
Date last |
2020 |
|
Obs |
14 |
|
| Pa first |
67 |
|
Pa last |
348.2 |
|
P.A. Now (θ) |
348.2° |
|
| Sep first |
0.2 |
|
Sep last |
0.345 |
|
Sep. Now (ρ) |
0.345" |
|
| Mag pri |
10.40 |
|
Mag sec |
10.50 |
|
delta mag (ΔM) |
0.1 |
|
Spectral class |
F6V (yellow-white) |
|
| Pri motion ra |
-045 |
|
Sec motion ra |
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|
| Pri motion dec |
-022 |
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Sec motion dec |
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| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cancer |
|
Tycho2 |
1398-00070-1 |
|
Gaia DR2 |
661405966945537280 |
|
ORBITAL ELEMENTS
| Period (P) | 135y | |
Periastron (T) | 2023.4y | |
Semi-major axis (a) | 0.185a | |
| Eccentricity (e) | 0.4 | |
Inclination (i) | 131° | |
Longitude of periastron (ω) | 269.8° | |
| Node (Ω) | 0° | |
Notes | | |
Reference | Cou1999b | |
| Equinox | | |
Last observation | | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
193.0 |
0.173 |
| 2001 |
191.1 |
0.171 |
| 2002 |
189.2 |
0.169 |
| 2003 |
187.3 |
0.166 |
| 2004 |
185.2 |
0.163 |
| 2005 |
183.1 |
0.160 |
| 2006 |
181.0 |
0.157 |
| 2007 |
178.7 |
0.153 |
| 2008 |
176.3 |
0.149 |
| 2009 |
173.7 |
0.144 |
| 2010 |
171.0 |
0.140 |
| 2011 |
168.1 |
0.135 |
| 2012 |
164.9 |
0.129 |
| 2013 |
161.5 |
0.123 |
| 2014 |
157.7 |
0.117 |
| 2015 |
153.5 |
0.111 |
| 2016 |
148.8 |
0.105 |
| 2017 |
143.5 |
0.099 |
| 2018 |
137.4 |
0.092 |
| 2019 |
130.6 |
0.087 |
| 2020 |
122.8 |
0.082 |
| 2021 |
114.1 |
0.077 |
| 2022 |
104.6 |
0.074 |
| 2023 |
94.4 |
0.073 |
| 2024 |
84.1 |
0.073 |
| 2025 |
74.0 |
0.075 |
| 2026 |
64.6 |
0.078 |
| 2027 |
56.0 |
0.082 |
| 2028 |
48.4 |
0.088 |
| 2029 |
41.7 |
0.093 |
| 2030 |
35.8 |
0.100 |
|
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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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