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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:59:35

Orbital Elements for STF2369
WDS: STF2369 WDS ID/Discoverer
P: 1458.909 Orbital period (years)
a: 3.70102 Semi-major axis (arcseconds)
i: 98.969 Inclination (degrees)
Ω: 126.819 Longitude of ascending node (degrees)
T: 2066.311 Epoch of periastron passage (year)
e: 0.95848 Eccentricity
ω: 242.157 Longitude of periastron (degrees)
Start-Year: 1296.0 Year
End-Year: 2754.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF2369
Position: 184355.78+023716.6 Epoch-2000 right ascension and declination
WDS-ID: 18439+0237 WDS designation
Discoverer Code: STF2369 Discover designation and components
ADS number: 11617 Aitken Double Star catalog
HD number: 173174 HD catalog number
Hipparcos number: 91889 Hipparcos catalog number
V1: 9.43 Magnitude of the primary
V2: 8.32 Magnitude of the secondary
Equinox: Equinox
Date: 2007 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for STF2369



WDS 6th Orbit including measures of STF2369

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


Ephemeris of STF2369
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.278     17.3
-------------------------
1296.0     3.601    110.9
1306.0     3.585    110.7
1316.0     3.568    110.6
1326.0     3.550    110.5
1336.0     3.531    110.4
1346.0     3.512    110.3
1356.0     3.491    110.1
1366.0     3.470    110.0
1376.0     3.448    109.9
1386.0     3.425    109.8
1396.0     3.401    109.6
1406.0     3.377    109.5
1416.0     3.351    109.4
1426.0     3.325    109.2
1436.0     3.298    109.1
1446.0     3.270    109.0
1456.0     3.241    108.8
1466.0     3.212    108.7
1476.0     3.181    108.5
1486.0     3.150    108.4
1496.0     3.118    108.2
1506.0     3.085    108.1
1516.0     3.052    107.9
1526.0     3.017    107.7
1536.0     2.982    107.6
1546.0     2.946    107.4
1556.0     2.909    107.2
1566.0     2.871    107.1
1576.0     2.832    106.9
1586.0     2.793    106.7
1596.0     2.752    106.5
1606.0     2.711    106.3
1616.0     2.669    106.1
1626.0     2.626    105.9
1636.0     2.583    105.6
1646.0     2.538    105.4
1656.0     2.493    105.2
1666.0     2.446    104.9
1676.0     2.399    104.7
1686.0     2.351    104.4
1696.0     2.302    104.1
1706.0     2.252    103.8
1716.0     2.201    103.5
1726.0     2.150    103.2
1736.0     2.097    102.9
1746.0     2.043    102.5
1756.0     1.989    102.2
1766.0     1.933    101.8
1776.0     1.877    101.4
1786.0     1.819    100.9
1796.0     1.760    100.4
1806.0     1.701     99.9
1816.0     1.640     99.4
1826.0     1.579     98.8
1836.0     1.516     98.2
1846.0     1.452     97.5
1856.0     1.388     96.8
1866.0     1.322     96.0
1876.0     1.255     95.0
1886.0     1.187     94.0
1896.0     1.118     92.9
1906.0     1.048     91.6
1916.0     0.977     90.2
1926.0     0.905     88.5
1936.0     0.832     86.5
1946.0     0.759     84.1
1956.0     0.686     81.2
1966.0     0.612     77.6
1976.0     0.539     73.1
1986.0     0.469     67.1
1996.0     0.403     59.2
2006.0     0.345     48.3
2016.0     0.301     33.7
2026.0     0.277     15.4
2036.0     0.280    355.7
2046.0     0.302    337.8
2056.0     0.319    322.4
2066.0     0.103    296.5
2076.0     0.600    126.3
2086.0     0.953    123.7
2096.0     1.210    122.4
2106.0     1.419    121.6
2116.0     1.597    120.9
2126.0     1.754    120.4
2136.0     1.894    119.9
2146.0     2.021    119.5
2156.0     2.138    119.2
2166.0     2.245    118.9
2176.0     2.344    118.6
2186.0     2.436    118.3
2196.0     2.523    118.1
2206.0     2.603    117.8
2216.0     2.679    117.6
2226.0     2.750    117.4
2236.0     2.818    117.2
2246.0     2.881    117.0
2256.0     2.941    116.9
2266.0     2.997    116.7
2276.0     3.050    116.5
2286.0     3.101    116.4
2296.0     3.149    116.2
2306.0     3.194    116.1
2316.0     3.237    115.9
2326.0     3.277    115.8
2336.0     3.315    115.6
2346.0     3.351    115.5
2356.0     3.385    115.4
2366.0     3.417    115.2
2376.0     3.447    115.1
2386.0     3.475    115.0
2396.0     3.502    114.9
2406.0     3.527    114.7
2416.0     3.550    114.6
2426.0     3.571    114.5
2436.0     3.591    114.4
2446.0     3.610    114.3
2456.0     3.627    114.2
2466.0     3.643    114.0
2476.0     3.657    113.9
2486.0     3.670    113.8
2496.0     3.682    113.7
2506.0     3.692    113.6
2516.0     3.702    113.5
2526.0     3.710    113.4
2536.0     3.716    113.3
2546.0     3.722    113.2
2556.0     3.726    113.0
2566.0     3.730    112.9
2576.0     3.732    112.8
2586.0     3.733    112.7
2596.0     3.733    112.6
2606.0     3.732    112.5
2616.0     3.730    112.4
2626.0     3.727    112.3
2636.0     3.723    112.2
2646.0     3.718    112.1
2656.0     3.712    112.0
2666.0     3.705    111.9
2676.0     3.697    111.7
2686.0     3.688    111.6
2696.0     3.678    111.5
2706.0     3.667    111.4
2716.0     3.655    111.3
2726.0     3.643    111.2
2736.0     3.629    111.1
2746.0     3.615    111.0






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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