04025+0638 HDS 510
04h 02m 32.85s +06° 37' 52.1" P.A. 76.00 sep 0.2 mag 11.37,11.81 Sp K7 dist. 70.57 pc (230.2 l.y.)
| Coord 2000 |
04025+0638 |
|
Discov num |
HDS 510 |
|
Comp |
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|
Coord arcsec 2000 |
04 02 32.85 +06 37 52.1 |
|
| Date first |
1991 |
|
Date last |
2020 |
|
Obs |
25 |
|
| Pa first |
100 |
|
Pa last |
75.5 |
|
P.A. Now (θ) |
79.3° |
|
| Sep first |
0.3 |
|
Sep last |
0.233 |
|
Sep. Now (ρ) |
0.246" |
|
| Mag pri |
11.37 |
|
Mag sec |
11.81 |
|
delta mag (ΔM) |
0.44 |
|
Spectral class |
K7 (yellow-orange) |
|
| Pri motion ra |
-030 |
|
Sec motion ra |
|
|
| Pri motion dec |
-006 |
|
Sec motion dec |
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| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Taurus |
|
HIP |
18856 |
|
Tycho2 |
0079-00983-1 |
|
Gaia DR2 |
3297820686103327232 |
|
| BD |
BD+06 620 |
|
Distance |
70.57 |
|
Distance ly |
230.2 |
|
ORBITAL ELEMENTS
| Period (P) | 42y | |
Periastron (T) | 2009.43y | |
Semi-major axis (a) | 0.175a | |
| Eccentricity (e) | 0.593 | |
Inclination (i) | 58.4° | |
Longitude of periastron (ω) | 185.6° | |
| Node (Ω) | 87.8° | |
Notes | | |
Reference | Cve2016c | |
| Equinox | 2000 | |
Last observation | 2015 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
113.9 |
0.174 |
| 2001 |
118.0 |
0.156 |
| 2002 |
123.1 |
0.137 |
| 2003 |
130.0 |
0.117 |
| 2004 |
139.8 |
0.097 |
| 2005 |
154.7 |
0.077 |
| 2006 |
177.7 |
0.063 |
| 2007 |
208.5 |
0.059 |
| 2008 |
237.9 |
0.065 |
| 2009 |
261.4 |
0.071 |
| 2010 |
283.9 |
0.067 |
| 2011 |
313.5 |
0.056 |
| 2012 |
351.6 |
0.055 |
| 2013 |
22.0 |
0.069 |
| 2014 |
39.9 |
0.091 |
| 2015 |
50.6 |
0.114 |
| 2016 |
57.8 |
0.136 |
| 2017 |
62.9 |
0.157 |
| 2018 |
66.9 |
0.176 |
| 2019 |
70.2 |
0.194 |
| 2020 |
72.9 |
0.209 |
| 2021 |
75.3 |
0.223 |
| 2022 |
77.4 |
0.235 |
| 2023 |
79.3 |
0.246 |
| 2024 |
81.0 |
0.255 |
| 2025 |
82.7 |
0.262 |
| 2026 |
84.3 |
0.268 |
| 2027 |
85.8 |
0.273 |
| 2028 |
87.2 |
0.276 |
| 2029 |
88.7 |
0.278 |
| 2030 |
90.1 |
0.278 |
|
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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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