04100+4235 COU 1702 (HD 26139)
04h 09m 59.09s +42° 35' 05.0" P.A. 177.00 sep 0.1 mag 8.90,8.90 Sp G0
| Coord 2000 |
04100+4235 |
|
Discov num |
COU1702 |
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Comp |
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Coord arcsec 2000 |
04 09 59.09 +42 35 05.0 |
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| Date first |
1979 |
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Date last |
2008 |
|
Obs |
16 |
|
| Pa first |
106 |
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Pa last |
176.8 |
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P.A. Now (θ) |
176.8° |
|
| Sep first |
0.2 |
|
Sep last |
0.1 |
|
Sep. Now (ρ) |
0.1" |
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| Mag pri |
8.90 |
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Mag sec |
8.90 |
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delta mag (ΔM) |
0 |
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Spectral class |
G0 (yellow) |
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| Pri motion ra |
+013 |
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Sec motion ra |
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| Pri motion dec |
-039 |
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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 26139 |
|
Constellation |
Perseus |
|
SAO |
39346 |
|
Tycho2 |
2885-01700-1 |
|
| Gaia DR2 |
231979262499020160 |
|
HD |
26139 |
|
ORBITAL ELEMENTS
| Period (P) | 101.9y | |
Periastron (T) | 1967.4y | |
Semi-major axis (a) | 0.197a | |
| Eccentricity (e) | 0.55 | |
Inclination (i) | 60° | |
Longitude of periastron (ω) | 93.3° | |
| Node (Ω) | 100° | |
Notes | | |
Reference | Cou1999b | |
| Equinox | | |
Last observation | | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
332.8 |
0.162 |
| 2001 |
335.0 |
0.161 |
| 2002 |
337.2 |
0.160 |
| 2003 |
339.4 |
0.159 |
| 2004 |
341.7 |
0.158 |
| 2005 |
344.1 |
0.157 |
| 2006 |
346.4 |
0.156 |
| 2007 |
348.8 |
0.155 |
| 2008 |
351.2 |
0.154 |
| 2009 |
353.6 |
0.154 |
| 2010 |
356.0 |
0.153 |
| 2011 |
358.5 |
0.153 |
| 2012 |
0.9 |
0.152 |
| 2013 |
3.4 |
0.152 |
| 2014 |
5.9 |
0.152 |
| 2015 |
8.4 |
0.152 |
| 2016 |
10.8 |
0.152 |
| 2017 |
13.3 |
0.153 |
| 2018 |
15.7 |
0.153 |
| 2019 |
18.2 |
0.154 |
| 2020 |
20.6 |
0.155 |
| 2021 |
23.0 |
0.155 |
| 2022 |
25.3 |
0.156 |
| 2023 |
27.6 |
0.157 |
| 2024 |
29.9 |
0.158 |
| 2025 |
32.2 |
0.160 |
| 2026 |
34.4 |
0.161 |
| 2027 |
36.6 |
0.162 |
| 2028 |
38.8 |
0.164 |
| 2029 |
40.9 |
0.165 |
| 2030 |
43.0 |
0.166 |
|
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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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