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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:59:35
WDS:
STF2369
WDS ID/Discoverer
P:
1458.909
Orbital period (years)
a:
3.70102
Semi-major axis (arcseconds)
i:
98.969
Inclination (degrees)
Ω:
126.819
Longitude of ascending node (degrees)
T:
2066.311
Epoch of periastron passage (year)
e:
0.95848
Eccentricity
ω:
242.157
Longitude of periastron (degrees)
Start-Year:
1296.0
Year
End-Year:
2754.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
184355.78+023716.6
Epoch-2000 right ascension and declination
WDS-ID:
18439+0237
WDS designation
Discoverer Code:
STF2369
Discover designation and components
ADS number:
11617
Aitken Double Star catalog
HD number:
173174
HD catalog number
Hipparcos number:
91889
Hipparcos catalog number
V1:
9.43
Magnitude of the primary
V2:
8.32
Magnitude of the secondary
Equinox:
Equinox
Date:
2007
Date of last observation
Orbit grade:
4
Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:
Flags
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Click to expand/collapse ephemeris:
Year Sep[“] PA[°]
---------------------------------------------
2025.0 0.278 17.3
-------------------------
1296.0 3.601 110.9
1306.0 3.585 110.7
1316.0 3.568 110.6
1326.0 3.550 110.5
1336.0 3.531 110.4
1346.0 3.512 110.3
1356.0 3.491 110.1
1366.0 3.470 110.0
1376.0 3.448 109.9
1386.0 3.425 109.8
1396.0 3.401 109.6
1406.0 3.377 109.5
1416.0 3.351 109.4
1426.0 3.325 109.2
1436.0 3.298 109.1
1446.0 3.270 109.0
1456.0 3.241 108.8
1466.0 3.212 108.7
1476.0 3.181 108.5
1486.0 3.150 108.4
1496.0 3.118 108.2
1506.0 3.085 108.1
1516.0 3.052 107.9
1526.0 3.017 107.7
1536.0 2.982 107.6
1546.0 2.946 107.4
1556.0 2.909 107.2
1566.0 2.871 107.1
1576.0 2.832 106.9
1586.0 2.793 106.7
1596.0 2.752 106.5
1606.0 2.711 106.3
1616.0 2.669 106.1
1626.0 2.626 105.9
1636.0 2.583 105.6
1646.0 2.538 105.4
1656.0 2.493 105.2
1666.0 2.446 104.9
1676.0 2.399 104.7
1686.0 2.351 104.4
1696.0 2.302 104.1
1706.0 2.252 103.8
1716.0 2.201 103.5
1726.0 2.150 103.2
1736.0 2.097 102.9
1746.0 2.043 102.5
1756.0 1.989 102.2
1766.0 1.933 101.8
1776.0 1.877 101.4
1786.0 1.819 100.9
1796.0 1.760 100.4
1806.0 1.701 99.9
1816.0 1.640 99.4
1826.0 1.579 98.8
1836.0 1.516 98.2
1846.0 1.452 97.5
1856.0 1.388 96.8
1866.0 1.322 96.0
1876.0 1.255 95.0
1886.0 1.187 94.0
1896.0 1.118 92.9
1906.0 1.048 91.6
1916.0 0.977 90.2
1926.0 0.905 88.5
1936.0 0.832 86.5
1946.0 0.759 84.1
1956.0 0.686 81.2
1966.0 0.612 77.6
1976.0 0.539 73.1
1986.0 0.469 67.1
1996.0 0.403 59.2
2006.0 0.345 48.3
2016.0 0.301 33.7
2026.0 0.277 15.4
2036.0 0.280 355.7
2046.0 0.302 337.8
2056.0 0.319 322.4
2066.0 0.103 296.5
2076.0 0.600 126.3
2086.0 0.953 123.7
2096.0 1.210 122.4
2106.0 1.419 121.6
2116.0 1.597 120.9
2126.0 1.754 120.4
2136.0 1.894 119.9
2146.0 2.021 119.5
2156.0 2.138 119.2
2166.0 2.245 118.9
2176.0 2.344 118.6
2186.0 2.436 118.3
2196.0 2.523 118.1
2206.0 2.603 117.8
2216.0 2.679 117.6
2226.0 2.750 117.4
2236.0 2.818 117.2
2246.0 2.881 117.0
2256.0 2.941 116.9
2266.0 2.997 116.7
2276.0 3.050 116.5
2286.0 3.101 116.4
2296.0 3.149 116.2
2306.0 3.194 116.1
2316.0 3.237 115.9
2326.0 3.277 115.8
2336.0 3.315 115.6
2346.0 3.351 115.5
2356.0 3.385 115.4
2366.0 3.417 115.2
2376.0 3.447 115.1
2386.0 3.475 115.0
2396.0 3.502 114.9
2406.0 3.527 114.7
2416.0 3.550 114.6
2426.0 3.571 114.5
2436.0 3.591 114.4
2446.0 3.610 114.3
2456.0 3.627 114.2
2466.0 3.643 114.0
2476.0 3.657 113.9
2486.0 3.670 113.8
2496.0 3.682 113.7
2506.0 3.692 113.6
2516.0 3.702 113.5
2526.0 3.710 113.4
2536.0 3.716 113.3
2546.0 3.722 113.2
2556.0 3.726 113.0
2566.0 3.730 112.9
2576.0 3.732 112.8
2586.0 3.733 112.7
2596.0 3.733 112.6
2606.0 3.732 112.5
2616.0 3.730 112.4
2626.0 3.727 112.3
2636.0 3.723 112.2
2646.0 3.718 112.1
2656.0 3.712 112.0
2666.0 3.705 111.9
2676.0 3.697 111.7
2686.0 3.688 111.6
2696.0 3.678 111.5
2706.0 3.667 111.4
2716.0 3.655 111.3
2726.0 3.643 111.2
2736.0 3.629 111.1
2746.0 3.615 111.0
This result is provided without warranty. For all terms, see the Full Disclaimer .
Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 4.0 .
The Double Star Calculator - Orbital Elements makes use of the Washington Double Star Sixth Catalog of Orbits of Visual Binary Stars, maintained at the U.S. Naval Observatory .
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