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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:38:02
WDS:
STF2957AB
WDS ID/Discoverer
P:
2068.524
Orbital period (years)
a:
9.21287
Semi-major axis (arcseconds)
i:
91.378
Inclination (degrees)
Ω:
47.402
Longitude of ascending node (degrees)
T:
1697.005
Epoch of periastron passage (year)
e:
0.78625
Eccentricity
ω:
97.335
Longitude of periastron (degrees)
Start-Year:
991.0
Year
End-Year:
3059.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
225623.64+172708.6
Epoch-2000 right ascension and declination
WDS-ID:
22564+1727
WDS designation
Discoverer Code:
STF2957AB
Discover designation and components
ADS number:
16379
Aitken Double Star catalog
HD number:
216863
HD catalog number
Hipparcos number:
113280
Hipparcos catalog number
V1:
9.20
Magnitude of the primary
V2:
10.88
Magnitude of the secondary
Equinox:
Equinox
Date:
2008
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 4.389 224.4
-------------------------
991.0 4.981 51.4
1001.0 5.055 51.3
1011.0 5.129 51.2
1021.0 5.201 51.2
1031.0 5.272 51.1
1041.0 5.342 51.0
1051.0 5.411 50.9
1061.0 5.479 50.8
1071.0 5.545 50.8
1081.0 5.610 50.7
1091.0 5.674 50.6
1101.0 5.737 50.6
1111.0 5.798 50.5
1121.0 5.858 50.4
1131.0 5.916 50.4
1141.0 5.973 50.3
1151.0 6.028 50.3
1161.0 6.082 50.2
1171.0 6.134 50.1
1181.0 6.184 50.1
1191.0 6.232 50.0
1201.0 6.278 50.0
1211.0 6.323 49.9
1221.0 6.365 49.9
1231.0 6.406 49.8
1241.0 6.444 49.7
1251.0 6.480 49.7
1261.0 6.513 49.6
1271.0 6.544 49.6
1281.0 6.573 49.5
1291.0 6.599 49.5
1301.0 6.622 49.4
1311.0 6.642 49.4
1321.0 6.659 49.3
1331.0 6.673 49.3
1341.0 6.684 49.2
1351.0 6.691 49.2
1361.0 6.695 49.1
1371.0 6.694 49.1
1381.0 6.690 49.0
1391.0 6.681 49.0
1401.0 6.668 48.9
1411.0 6.650 48.9
1421.0 6.627 48.8
1431.0 6.599 48.8
1441.0 6.564 48.7
1451.0 6.524 48.7
1461.0 6.477 48.6
1471.0 6.423 48.6
1481.0 6.361 48.5
1491.0 6.291 48.5
1501.0 6.212 48.4
1511.0 6.124 48.4
1521.0 6.025 48.3
1531.0 5.914 48.2
1541.0 5.791 48.2
1551.0 5.653 48.1
1561.0 5.499 48.0
1571.0 5.328 48.0
1581.0 5.136 47.9
1591.0 4.922 47.8
1601.0 4.681 47.7
1611.0 4.409 47.6
1621.0 4.101 47.5
1631.0 3.750 47.3
1641.0 3.348 47.2
1651.0 2.885 46.9
1661.0 2.348 46.6
1671.0 1.726 46.1
1681.0 1.015 44.8
1691.0 0.237 35.8
1701.0 0.571 232.0
1711.0 1.321 229.1
1721.0 1.972 228.3
1731.0 2.515 227.8
1741.0 2.959 227.5
1751.0 3.322 227.3
1761.0 3.620 227.1
1771.0 3.866 227.0
1781.0 4.069 226.8
1791.0 4.236 226.7
1801.0 4.375 226.6
1811.0 4.490 226.5
1821.0 4.583 226.4
1831.0 4.659 226.3
1841.0 4.719 226.2
1851.0 4.766 226.1
1861.0 4.800 226.0
1871.0 4.824 225.9
1881.0 4.839 225.8
1891.0 4.844 225.7
1901.0 4.843 225.6
1911.0 4.834 225.5
1921.0 4.819 225.4
1931.0 4.798 225.3
1941.0 4.771 225.2
1951.0 4.740 225.1
1961.0 4.704 225.0
1971.0 4.664 224.9
1981.0 4.621 224.8
1991.0 4.573 224.7
2001.0 4.523 224.6
2011.0 4.469 224.5
2021.0 4.412 224.4
2031.0 4.353 224.3
2041.0 4.291 224.2
2051.0 4.227 224.1
2061.0 4.161 223.9
2071.0 4.092 223.8
2081.0 4.022 223.7
2091.0 3.950 223.5
2101.0 3.876 223.4
2111.0 3.800 223.2
2121.0 3.723 223.1
2131.0 3.644 222.9
2141.0 3.565 222.8
2151.0 3.483 222.6
2161.0 3.401 222.4
2171.0 3.318 222.2
2181.0 3.233 222.0
2191.0 3.147 221.8
2201.0 3.061 221.5
2211.0 2.974 221.3
2221.0 2.885 221.0
2231.0 2.796 220.8
2241.0 2.707 220.5
2251.0 2.616 220.2
2261.0 2.525 219.8
2271.0 2.434 219.5
2281.0 2.342 219.1
2291.0 2.249 218.7
2301.0 2.156 218.2
2311.0 2.063 217.7
2321.0 1.969 217.2
2331.0 1.876 216.6
2341.0 1.782 215.9
2351.0 1.687 215.2
2361.0 1.593 214.4
2371.0 1.499 213.5
2381.0 1.405 212.4
2391.0 1.311 211.2
2401.0 1.217 209.9
2411.0 1.124 208.3
2421.0 1.032 206.4
2431.0 0.941 204.1
2441.0 0.852 201.4
2451.0 0.765 198.0
2461.0 0.681 193.8
2471.0 0.601 188.4
2481.0 0.529 181.5
2491.0 0.466 172.5
2501.0 0.418 161.2
2511.0 0.390 147.6
2521.0 0.386 132.8
2531.0 0.407 118.7
2541.0 0.450 106.6
2551.0 0.509 97.0
2561.0 0.579 89.5
2571.0 0.657 83.7
2581.0 0.740 79.2
2591.0 0.826 75.6
2601.0 0.915 72.7
2611.0 1.006 70.3
2621.0 1.097 68.3
2631.0 1.190 66.6
2641.0 1.284 65.2
2651.0 1.378 64.0
2661.0 1.472 62.9
2671.0 1.567 61.9
2681.0 1.662 61.1
2691.0 1.756 60.3
2701.0 1.851 59.7
2711.0 1.946 59.1
2721.0 2.040 58.5
2731.0 2.135 58.0
2741.0 2.229 57.5
2751.0 2.323 57.1
2761.0 2.417 56.7
2771.0 2.510 56.4
2781.0 2.603 56.0
2791.0 2.696 55.7
2801.0 2.789 55.4
2811.0 2.881 55.1
2821.0 2.972 54.9
2831.0 3.064 54.6
2841.0 3.154 54.4
2851.0 3.245 54.2
2861.0 3.334 54.0
2871.0 3.424 53.8
2881.0 3.512 53.6
2891.0 3.600 53.5
2901.0 3.688 53.3
2911.0 3.775 53.1
2921.0 3.861 53.0
2931.0 3.947 52.8
2941.0 4.032 52.7
2951.0 4.116 52.6
2961.0 4.200 52.4
2971.0 4.283 52.3
2981.0 4.365 52.2
2991.0 4.446 52.1
3001.0 4.527 52.0
3011.0 4.607 51.9
3021.0 4.686 51.8
3031.0 4.764 51.7
3041.0 4.841 51.6
3051.0 4.917 51.5
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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