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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:05:56
WDS:
LWR2AB
WDS ID/Discoverer
P:
1380.000
Orbital period (years)
a:
2.548
Semi-major axis (arcseconds)
i:
138.0
Inclination (degrees)
Ω:
36.1
Longitude of ascending node (degrees)
T:
2168.310
Epoch of periastron passage (year)
e:
0.24
Eccentricity
ω:
112.0
Longitude of periastron (degrees)
Start-Year:
1335.0
Year
End-Year:
2715.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
113155.26-343627.4
Epoch-2000 right ascension and declination
WDS-ID:
11319-3436
WDS designation
Discoverer Code:
LWR2AB
Discover designation and components
ADS number:
.
Aitken Double Star catalog
HD number:
.
HD catalog number
Hipparcos number:
.
Hipparcos catalog number
V1:
7.7 k
Magnitude of the primary
V2:
12.6 k
Magnitude of the secondary
Equinox:
Equinox
Date:
2013
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 1.802 351.2
-------------------------
1335.0 2.287 128.8
1345.0 2.294 126.5
1355.0 2.302 124.2
1365.0 2.312 121.9
1375.0 2.322 119.6
1385.0 2.333 117.4
1395.0 2.346 115.1
1405.0 2.359 112.9
1415.0 2.373 110.7
1425.0 2.388 108.6
1435.0 2.404 106.5
1445.0 2.420 104.4
1455.0 2.437 102.3
1465.0 2.454 100.2
1475.0 2.472 98.2
1485.0 2.490 96.2
1495.0 2.508 94.3
1505.0 2.527 92.4
1515.0 2.545 90.5
1525.0 2.564 88.6
1535.0 2.582 86.7
1545.0 2.600 84.9
1555.0 2.618 83.1
1565.0 2.636 81.4
1575.0 2.653 79.6
1585.0 2.669 77.9
1595.0 2.685 76.2
1605.0 2.700 74.5
1615.0 2.714 72.8
1625.0 2.728 71.2
1635.0 2.740 69.5
1645.0 2.752 67.9
1655.0 2.762 66.3
1665.0 2.771 64.7
1675.0 2.778 63.1
1685.0 2.784 61.6
1695.0 2.789 60.0
1705.0 2.792 58.4
1715.0 2.794 56.8
1725.0 2.794 55.3
1735.0 2.792 53.7
1745.0 2.788 52.1
1755.0 2.782 50.6
1765.0 2.774 49.0
1775.0 2.764 47.4
1785.0 2.752 45.8
1795.0 2.738 44.2
1805.0 2.722 42.5
1815.0 2.703 40.9
1825.0 2.682 39.2
1835.0 2.659 37.5
1845.0 2.633 35.7
1855.0 2.604 33.9
1865.0 2.573 32.1
1875.0 2.540 30.2
1885.0 2.504 28.3
1895.0 2.466 26.3
1905.0 2.426 24.3
1915.0 2.383 22.2
1925.0 2.337 20.0
1935.0 2.290 17.7
1945.0 2.240 15.3
1955.0 2.189 12.8
1965.0 2.136 10.2
1975.0 2.082 7.5
1985.0 2.026 4.6
1995.0 1.970 1.5
2005.0 1.914 358.3
2015.0 1.857 354.8
2025.0 1.802 351.2
2035.0 1.748 347.3
2045.0 1.696 343.2
2055.0 1.647 338.8
2065.0 1.602 334.2
2075.0 1.561 329.3
2085.0 1.526 324.2
2095.0 1.498 318.8
2105.0 1.476 313.3
2115.0 1.462 307.6
2125.0 1.456 301.9
2135.0 1.458 296.1
2145.0 1.468 290.4
2155.0 1.485 284.8
2165.0 1.509 279.3
2175.0 1.540 274.1
2185.0 1.575 269.0
2195.0 1.615 264.2
2205.0 1.658 259.7
2215.0 1.703 255.3
2225.0 1.750 251.2
2235.0 1.797 247.3
2245.0 1.845 243.7
2255.0 1.892 240.2
2265.0 1.937 236.8
2275.0 1.981 233.6
2285.0 2.023 230.6
2295.0 2.062 227.7
2305.0 2.099 224.8
2315.0 2.134 222.1
2325.0 2.166 219.5
2335.0 2.195 216.9
2345.0 2.221 214.4
2355.0 2.244 211.9
2365.0 2.264 209.5
2375.0 2.282 207.2
2385.0 2.298 204.9
2395.0 2.311 202.6
2405.0 2.321 200.3
2415.0 2.329 198.0
2425.0 2.336 195.8
2435.0 2.340 193.5
2445.0 2.343 191.3
2455.0 2.344 189.1
2465.0 2.344 186.9
2475.0 2.342 184.6
2485.0 2.339 182.4
2495.0 2.336 180.2
2505.0 2.331 177.9
2515.0 2.326 175.7
2525.0 2.321 173.4
2535.0 2.315 171.1
2545.0 2.309 168.8
2555.0 2.303 166.5
2565.0 2.297 164.2
2575.0 2.291 161.9
2585.0 2.286 159.6
2595.0 2.281 157.2
2605.0 2.277 154.9
2615.0 2.273 152.5
2625.0 2.270 150.2
2635.0 2.268 147.8
2645.0 2.267 145.4
2655.0 2.266 143.0
2665.0 2.267 140.6
2675.0 2.269 138.3
2685.0 2.272 135.9
2695.0 2.275 133.5
2705.0 2.280 131.2
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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