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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:35:40
WDS:
STF1998AC
WDS ID/Discoverer
P:
1514.430
Orbital period (years)
a:
7.755
Semi-major axis (arcseconds)
i:
131.5
Inclination (degrees)
Ω:
47.4
Longitude of ascending node (degrees)
T:
2226.100
Epoch of periastron passage (year)
e:
0.041
Eccentricity
ω:
59.3
Longitude of periastron (degrees)
Start-Year:
1268.0
Year
End-Year:
2782.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
160422.13-112223.2
Epoch-2000 right ascension and declination
WDS-ID:
16044-1122
WDS designation
Discoverer Code:
STF1998AC
Discover designation and components
ADS number:
9909
Aitken Double Star catalog
HD number:
144069J
HD catalog number
Hipparcos number:
78727
Hipparcos catalog number
V1:
5.16
Magnitude of the primary
V2:
7.30
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2005
Date of last observation
Orbit grade:
5
Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:
n
Flags
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Click to expand/collapse ephemeris:
Year Sep[“] PA[°]
---------------------------------------------
2025.0 7.509 42.2
-------------------------
1268.0 7.826 217.4
1278.0 7.788 215.8
1288.0 7.742 214.3
1298.0 7.691 212.7
1308.0 7.633 211.1
1318.0 7.570 209.4
1328.0 7.501 207.8
1338.0 7.427 206.1
1348.0 7.348 204.3
1358.0 7.265 202.6
1368.0 7.178 200.7
1378.0 7.087 198.9
1388.0 6.992 197.0
1398.0 6.895 195.0
1408.0 6.796 193.0
1418.0 6.695 190.9
1428.0 6.593 188.8
1438.0 6.490 186.6
1448.0 6.387 184.3
1458.0 6.285 181.9
1468.0 6.185 179.5
1478.0 6.086 177.0
1488.0 5.991 174.4
1498.0 5.899 171.7
1508.0 5.811 168.9
1518.0 5.728 166.1
1528.0 5.651 163.2
1538.0 5.581 160.2
1548.0 5.517 157.1
1558.0 5.462 153.9
1568.0 5.415 150.7
1578.0 5.376 147.5
1588.0 5.347 144.2
1598.0 5.327 140.9
1608.0 5.318 137.5
1618.0 5.318 134.2
1628.0 5.328 130.8
1638.0 5.347 127.5
1648.0 5.376 124.2
1658.0 5.415 121.0
1668.0 5.462 117.8
1678.0 5.517 114.6
1688.0 5.579 111.6
1698.0 5.648 108.5
1708.0 5.724 105.6
1718.0 5.805 102.8
1728.0 5.890 100.0
1738.0 5.979 97.3
1748.0 6.071 94.7
1758.0 6.166 92.2
1768.0 6.262 89.7
1778.0 6.359 87.4
1788.0 6.456 85.0
1798.0 6.552 82.8
1808.0 6.647 80.6
1818.0 6.741 78.5
1828.0 6.831 76.5
1838.0 6.919 74.5
1848.0 7.003 72.5
1858.0 7.083 70.6
1868.0 7.159 68.7
1878.0 7.230 66.9
1888.0 7.295 65.1
1898.0 7.355 63.4
1908.0 7.408 61.6
1918.0 7.456 59.9
1928.0 7.496 58.2
1938.0 7.530 56.5
1948.0 7.556 54.9
1958.0 7.576 53.2
1968.0 7.587 51.6
1978.0 7.592 49.9
1988.0 7.588 48.3
1998.0 7.577 46.6
2008.0 7.558 45.0
2018.0 7.532 43.3
2028.0 7.498 41.6
2038.0 7.456 40.0
2048.0 7.407 38.2
2058.0 7.351 36.5
2068.0 7.288 34.7
2078.0 7.218 32.9
2088.0 7.141 31.1
2098.0 7.059 29.2
2108.0 6.970 27.3
2118.0 6.876 25.3
2128.0 6.778 23.3
2138.0 6.675 21.2
2148.0 6.568 19.0
2158.0 6.459 16.8
2168.0 6.347 14.5
2178.0 6.233 12.1
2188.0 6.118 9.6
2198.0 6.004 7.1
2208.0 5.890 4.4
2218.0 5.778 1.6
2228.0 5.669 358.7
2238.0 5.564 355.7
2248.0 5.464 352.6
2258.0 5.370 349.4
2268.0 5.283 346.0
2278.0 5.205 342.6
2288.0 5.135 339.0
2298.0 5.076 335.4
2308.0 5.028 331.7
2318.0 4.991 327.9
2328.0 4.967 324.1
2338.0 4.956 320.3
2348.0 4.957 316.4
2358.0 4.971 312.6
2368.0 4.998 308.8
2378.0 5.037 305.0
2388.0 5.088 301.3
2398.0 5.150 297.7
2408.0 5.223 294.2
2418.0 5.304 290.7
2428.0 5.394 287.4
2438.0 5.492 284.2
2448.0 5.595 281.2
2458.0 5.704 278.2
2468.0 5.817 275.3
2478.0 5.933 272.6
2488.0 6.052 270.0
2498.0 6.171 267.4
2508.0 6.292 265.0
2518.0 6.412 262.6
2528.0 6.530 260.4
2538.0 6.647 258.2
2548.0 6.762 256.1
2558.0 6.873 254.1
2568.0 6.981 252.1
2578.0 7.084 250.2
2588.0 7.183 248.3
2598.0 7.277 246.5
2608.0 7.366 244.7
2618.0 7.448 243.0
2628.0 7.525 241.3
2638.0 7.595 239.7
2648.0 7.659 238.0
2658.0 7.716 236.4
2668.0 7.766 234.9
2678.0 7.809 233.3
2688.0 7.845 231.8
2698.0 7.874 230.2
2708.0 7.895 228.7
2718.0 7.909 227.2
2728.0 7.916 225.7
2738.0 7.915 224.2
2748.0 7.907 222.7
2758.0 7.892 221.1
2768.0 7.870 219.6
2778.0 7.841 218.1
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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