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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 16:21:46
WDS:
STF42AB
WDS ID/Discoverer
P:
1900.000
Orbital period (years)
a:
4.5
Semi-major axis (arcseconds)
i:
155.0
Inclination (degrees)
Ω:
23.0
Longitude of ascending node (degrees)
T:
1384.000
Epoch of periastron passage (year)
e:
0.53
Eccentricity
ω:
206.0
Longitude of periastron (degrees)
Start-Year:
1075.0
Year
End-Year:
2975.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
003602.39+295934.2
Epoch-2000 right ascension and declination
WDS-ID:
00360+2959
WDS designation
Discoverer Code:
STF42AB
Discover designation and components
ADS number:
497
Aitken Double Star catalog
HD number:
3266
HD catalog number
Hipparcos number:
2844
Hipparcos catalog number
V1:
8.39
Magnitude of the primary
V2:
9.05
Magnitude of the secondary
Equinox:
Equinox
Date:
2000
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 6.343 19.7
-------------------------
1075.0 4.041 298.6
1085.0 3.966 296.8
1095.0 3.891 294.8
1105.0 3.815 292.9
1115.0 3.739 290.8
1125.0 3.663 288.6
1135.0 3.587 286.4
1145.0 3.510 284.1
1155.0 3.434 281.6
1165.0 3.358 279.0
1175.0 3.282 276.4
1185.0 3.207 273.6
1195.0 3.132 270.6
1205.0 3.058 267.6
1215.0 2.985 264.3
1225.0 2.913 260.9
1235.0 2.842 257.4
1245.0 2.773 253.6
1255.0 2.705 249.7
1265.0 2.639 245.6
1275.0 2.576 241.2
1285.0 2.514 236.7
1295.0 2.455 231.9
1305.0 2.398 226.9
1315.0 2.344 221.6
1325.0 2.293 216.2
1335.0 2.246 210.4
1345.0 2.202 204.5
1355.0 2.162 198.3
1365.0 2.128 191.8
1375.0 2.099 185.2
1385.0 2.077 178.5
1395.0 2.062 171.6
1405.0 2.056 164.6
1415.0 2.060 157.7
1425.0 2.074 150.7
1435.0 2.099 144.0
1445.0 2.134 137.4
1455.0 2.179 131.0
1465.0 2.234 125.0
1475.0 2.297 119.2
1485.0 2.368 113.8
1495.0 2.446 108.7
1505.0 2.530 103.9
1515.0 2.618 99.5
1525.0 2.710 95.3
1535.0 2.805 91.4
1545.0 2.903 87.8
1555.0 3.002 84.4
1565.0 3.102 81.3
1575.0 3.202 78.3
1585.0 3.303 75.5
1595.0 3.403 72.9
1605.0 3.503 70.4
1615.0 3.602 68.1
1625.0 3.701 65.9
1635.0 3.798 63.8
1645.0 3.894 61.8
1655.0 3.989 59.9
1665.0 4.082 58.1
1675.0 4.174 56.3
1685.0 4.264 54.7
1695.0 4.353 53.1
1705.0 4.440 51.6
1715.0 4.525 50.1
1725.0 4.609 48.7
1735.0 4.691 47.3
1745.0 4.771 46.0
1755.0 4.850 44.7
1765.0 4.927 43.5
1775.0 5.002 42.3
1785.0 5.075 41.1
1795.0 5.147 40.0
1805.0 5.217 38.9
1815.0 5.285 37.8
1825.0 5.351 36.8
1835.0 5.416 35.8
1845.0 5.479 34.8
1855.0 5.541 33.8
1865.0 5.600 32.9
1875.0 5.658 31.9
1885.0 5.715 31.0
1895.0 5.770 30.1
1905.0 5.823 29.3
1915.0 5.875 28.4
1925.0 5.925 27.5
1935.0 5.974 26.7
1945.0 6.021 25.9
1955.0 6.066 25.1
1965.0 6.110 24.3
1975.0 6.153 23.5
1985.0 6.194 22.7
1995.0 6.233 22.0
2005.0 6.271 21.2
2015.0 6.308 20.5
2025.0 6.343 19.7
2035.0 6.377 19.0
2045.0 6.409 18.3
2055.0 6.440 17.6
2065.0 6.469 16.9
2075.0 6.497 16.2
2085.0 6.524 15.5
2095.0 6.549 14.8
2105.0 6.573 14.1
2115.0 6.596 13.4
2125.0 6.617 12.7
2135.0 6.637 12.1
2145.0 6.656 11.4
2155.0 6.673 10.7
2165.0 6.689 10.1
2175.0 6.704 9.4
2185.0 6.717 8.8
2195.0 6.729 8.1
2205.0 6.740 7.5
2215.0 6.749 6.8
2225.0 6.757 6.2
2235.0 6.764 5.5
2245.0 6.770 4.9
2255.0 6.774 4.2
2265.0 6.778 3.6
2275.0 6.779 2.9
2285.0 6.780 2.3
2295.0 6.780 1.7
2305.0 6.778 1.0
2315.0 6.775 0.4
2325.0 6.771 359.7
2335.0 6.765 359.1
2345.0 6.759 358.4
2355.0 6.751 357.8
2365.0 6.742 357.1
2375.0 6.731 356.5
2385.0 6.720 355.8
2395.0 6.707 355.2
2405.0 6.694 354.5
2415.0 6.679 353.9
2425.0 6.662 353.2
2435.0 6.645 352.5
2445.0 6.626 351.9
2455.0 6.607 351.2
2465.0 6.586 350.5
2475.0 6.564 349.8
2485.0 6.541 349.2
2495.0 6.516 348.5
2505.0 6.491 347.8
2515.0 6.464 347.1
2525.0 6.436 346.4
2535.0 6.407 345.6
2545.0 6.377 344.9
2555.0 6.345 344.2
2565.0 6.313 343.5
2575.0 6.279 342.7
2585.0 6.245 342.0
2595.0 6.209 341.2
2605.0 6.172 340.4
2615.0 6.133 339.7
2625.0 6.094 338.9
2635.0 6.053 338.1
2645.0 6.012 337.3
2655.0 5.969 336.4
2665.0 5.925 335.6
2675.0 5.880 334.8
2685.0 5.834 333.9
2695.0 5.787 333.0
2705.0 5.738 332.1
2715.0 5.689 331.2
2725.0 5.638 330.3
2735.0 5.586 329.4
2745.0 5.533 328.4
2755.0 5.480 327.4
2765.0 5.425 326.5
2775.0 5.368 325.4
2785.0 5.311 324.4
2795.0 5.253 323.3
2805.0 5.194 322.3
2815.0 5.133 321.2
2825.0 5.072 320.0
2835.0 5.010 318.9
2845.0 4.946 317.7
2855.0 4.882 316.5
2865.0 4.816 315.2
2875.0 4.750 313.9
2885.0 4.683 312.6
2895.0 4.615 311.2
2905.0 4.546 309.8
2915.0 4.476 308.4
2925.0 4.405 306.9
2935.0 4.334 305.3
2945.0 4.261 303.7
2955.0 4.188 302.1
2965.0 4.115 300.4
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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