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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:20:12

Orbital Elements for STF2783
WDS: STF2783 WDS ID/Discoverer
P: 1760.000 Orbital period (years)
a: 1.685 Semi-major axis (arcseconds)
i: 113.8 Inclination (degrees)
Ω: 48.3 Longitude of ascending node (degrees)
T: 1835.000 Epoch of periastron passage (year)
e: 0.22 Eccentricity
ω: 18.9 Longitude of periastron (degrees)
Start-Year: 1145.0 Year
End-Year: 2905.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF2783
Position: 211404.90+581749.8 Epoch-2000 right ascension and declination
WDS-ID: 21141+5818 WDS designation
Discoverer Code: STF2783 Discover designation and components
ADS number: 14784 Aitken Double Star catalog
HD number: 202519 HD catalog number
Hipparcos number: 104812 Hipparcos catalog number
V1: 7.71 Magnitude of the primary
V2: 8.07 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2011 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for STF2783



WDS 6th Orbit including measures of STF2783

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


Ephemeris of STF2783
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.647    347.2
-------------------------
1145.0     1.527    206.4
1155.0     1.495    205.4
1165.0     1.462    204.4
1175.0     1.429    203.3
1185.0     1.395    202.1
1195.0     1.361    200.9
1205.0     1.326    199.7
1215.0     1.291    198.3
1225.0     1.255    196.9
1235.0     1.219    195.4
1245.0     1.183    193.8
1255.0     1.147    192.2
1265.0     1.111    190.4
1275.0     1.076    188.4
1285.0     1.040    186.4
1295.0     1.005    184.2
1305.0     0.971    181.9
1315.0     0.937    179.4
1325.0     0.905    176.7
1335.0     0.874    173.8
1345.0     0.844    170.7
1355.0     0.816    167.4
1365.0     0.790    163.8
1375.0     0.767    160.0
1385.0     0.746    156.0
1395.0     0.729    151.8
1405.0     0.714    147.4
1415.0     0.704    142.9
1425.0     0.697    138.2
1435.0     0.693    133.5
1445.0     0.694    128.7
1455.0     0.699    124.0
1465.0     0.707    119.4
1475.0     0.719    114.9
1485.0     0.735    110.6
1495.0     0.753    106.4
1505.0     0.774    102.5
1515.0     0.797     98.8
1525.0     0.823     95.3
1535.0     0.850     92.0
1545.0     0.878     89.0
1555.0     0.907     86.1
1565.0     0.937     83.4
1575.0     0.967     80.9
1585.0     0.997     78.5
1595.0     1.027     76.3
1605.0     1.057     74.2
1615.0     1.086     72.2
1625.0     1.115     70.3
1635.0     1.142     68.5
1645.0     1.168     66.8
1655.0     1.193     65.1
1665.0     1.216     63.6
1675.0     1.237     62.0
1685.0     1.257     60.6
1695.0     1.274     59.1
1705.0     1.290     57.8
1715.0     1.303     56.4
1725.0     1.313     55.1
1735.0     1.322     53.7
1745.0     1.327     52.4
1755.0     1.330     51.1
1765.0     1.330     49.9
1775.0     1.328     48.6
1785.0     1.323     47.3
1795.0     1.315     45.9
1805.0     1.304     44.6
1815.0     1.290     43.3
1825.0     1.274     41.9
1835.0     1.255     40.4
1845.0     1.234     39.0
1855.0     1.210     37.4
1865.0     1.184     35.8
1875.0     1.155     34.2
1885.0     1.125     32.4
1895.0     1.092     30.5
1905.0     1.058     28.6
1915.0     1.023     26.5
1925.0     0.987     24.2
1935.0     0.949     21.7
1945.0     0.912     19.1
1955.0     0.874     16.2
1965.0     0.836     13.1
1975.0     0.800      9.7
1985.0     0.764      5.9
1995.0     0.730      1.8
2005.0     0.699    357.4
2015.0     0.671    352.5
2025.0     0.647    347.2
2035.0     0.628    341.6
2045.0     0.613    335.6
2055.0     0.605    329.5
2065.0     0.602    323.2
2075.0     0.605    316.9
2085.0     0.615    310.7
2095.0     0.630    304.8
2105.0     0.651    299.2
2115.0     0.676    294.0
2125.0     0.705    289.2
2135.0     0.738    284.8
2145.0     0.774    280.8
2155.0     0.811    277.2
2165.0     0.851    273.9
2175.0     0.892    270.9
2185.0     0.934    268.1
2195.0     0.977    265.6
2205.0     1.020    263.3
2215.0     1.063    261.2
2225.0     1.106    259.3
2235.0     1.149    257.5
2245.0     1.192    255.8
2255.0     1.234    254.3
2265.0     1.276    252.8
2275.0     1.317    251.4
2285.0     1.357    250.2
2295.0     1.396    249.0
2305.0     1.435    247.8
2315.0     1.472    246.7
2325.0     1.509    245.7
2335.0     1.544    244.7
2345.0     1.579    243.8
2355.0     1.612    242.9
2365.0     1.644    242.0
2375.0     1.675    241.2
2385.0     1.705    240.4
2395.0     1.733    239.6
2405.0     1.760    238.9
2415.0     1.786    238.1
2425.0     1.811    237.4
2435.0     1.834    236.8
2445.0     1.856    236.1
2455.0     1.877    235.4
2465.0     1.897    234.8
2475.0     1.915    234.2
2485.0     1.932    233.5
2495.0     1.947    232.9
2505.0     1.962    232.3
2515.0     1.975    231.7
2525.0     1.986    231.2
2535.0     1.997    230.6
2545.0     2.006    230.0
2555.0     2.013    229.4
2565.0     2.020    228.9
2575.0     2.025    228.3
2585.0     2.029    227.8
2595.0     2.031    227.2
2605.0     2.032    226.7
2615.0     2.032    226.1
2625.0     2.031    225.6
2635.0     2.028    225.0
2645.0     2.024    224.4
2655.0     2.019    223.9
2665.0     2.013    223.3
2675.0     2.006    222.8
2685.0     1.997    222.2
2695.0     1.987    221.6
2705.0     1.976    221.0
2715.0     1.963    220.4
2725.0     1.950    219.8
2735.0     1.935    219.2
2745.0     1.919    218.6
2755.0     1.902    218.0
2765.0     1.884    217.4
2775.0     1.865    216.7
2785.0     1.845    216.0
2795.0     1.824    215.4
2805.0     1.802    214.7
2815.0     1.778    213.9
2825.0     1.754    213.2
2835.0     1.729    212.5
2845.0     1.702    211.7
2855.0     1.675    210.9
2865.0     1.647    210.1
2875.0     1.618    209.2
2885.0     1.589    208.3
2895.0     1.558    207.4






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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