Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:05:56

Orbital Elements for LWR2AB
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

Further data from the WDS Sixth Catalog of Orbits for LWR2AB
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

Double Star Orbit for LWR2AB



WDS 6th Orbit including measures of LWR2AB

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)


Ephemeris of LWR2AB
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






Disclaimer
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.


Acknowledgements
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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