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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 17:01:21

Orbital Elements for STI2051AB
WDS: STI2051AB WDS ID/Discoverer
P: 1799.890 Orbital period (years)
a: 32.2191 Semi-major axis (arcseconds)
i: 105.2509 Inclination (degrees)
Ω: 10.3888 Longitude of ascending node (degrees)
T: 1798.986 Epoch of periastron passage (year)
e: 0.7054 Eccentricity
ω: 333.2549 Longitude of periastron (degrees)
Start-Year: 1126.0 Year
End-Year: 2924.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STI2051AB
Position: 043111.52+585837.5 Epoch-2000 right ascension and declination
WDS-ID: 04312+5858 WDS designation
Discoverer Code: STI2051AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 21088 Hipparcos catalog number
V1: 11.0 Magnitude of the primary
V2: 11.38 Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STI2051AB



WDS 6th Orbit including measures of STI2051AB
Ephemeris of STI2051AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0    10.982    235.2
-------------------------
1126.0    50.727    194.5
1136.0    50.627    194.4
1146.0    50.512    194.2
1156.0    50.382    194.1
1166.0    50.239    193.9
1176.0    50.080    193.8
1186.0    49.907    193.6
1196.0    49.719    193.4
1206.0    49.515    193.3
1216.0    49.297    193.1
1226.0    49.062    193.0
1236.0    48.812    192.8
1246.0    48.545    192.6
1256.0    48.262    192.5
1266.0    47.963    192.3
1276.0    47.646    192.1
1286.0    47.313    192.0
1296.0    46.962    191.8
1306.0    46.593    191.6
1316.0    46.206    191.4
1326.0    45.800    191.3
1336.0    45.376    191.1
1346.0    44.932    190.9
1356.0    44.468    190.7
1366.0    43.985    190.5
1376.0    43.481    190.3
1386.0    42.956    190.1
1396.0    42.410    189.9
1406.0    41.841    189.6
1416.0    41.250    189.4
1426.0    40.636    189.2
1436.0    39.998    189.0
1446.0    39.335    188.7
1456.0    38.647    188.5
1466.0    37.934    188.2
1476.0    37.194    187.9
1486.0    36.426    187.6
1496.0    35.630    187.3
1506.0    34.805    187.0
1516.0    33.949    186.7
1526.0    33.061    186.3
1536.0    32.142    186.0
1546.0    31.188    185.6
1556.0    30.199    185.2
1566.0    29.174    184.7
1576.0    28.111    184.3
1586.0    27.008    183.8
1596.0    25.864    183.2
1606.0    24.676    182.6
1616.0    23.444    181.9
1626.0    22.164    181.2
1636.0    20.836    180.4
1646.0    19.456    179.4
1656.0    18.023    178.3
1666.0    16.536    177.0
1676.0    14.993    175.4
1686.0    13.394    173.5
1696.0    11.741    171.0
1706.0    10.042    167.8
1716.0     8.311    163.1
1726.0     6.584    156.1
1736.0     4.951    144.1
1746.0     3.650    122.2
1756.0     3.220     87.3
1766.0     3.965     55.5
1776.0     5.347     37.0
1786.0     6.849     26.4
1796.0     8.200     19.6
1806.0     9.252     14.5
1816.0     9.938     10.3
1826.0    10.261      6.6
1836.0    10.274      2.9
1846.0    10.044    359.2
1856.0     9.641    355.2
1866.0     9.124    350.8
1876.0     8.543    345.8
1886.0     7.944    340.1
1896.0     7.366    333.5
1906.0     6.849    325.8
1916.0     6.433    317.0
1926.0     6.155    307.2
1936.0     6.044    296.7
1946.0     6.116    286.2
1956.0     6.366    276.2
1966.0     6.774    267.2
1976.0     7.311    259.4
1986.0     7.949    252.7
1996.0     8.661    247.1
2006.0     9.428    242.3
2016.0    10.234    238.3
2026.0    11.066    234.9
2036.0    11.916    231.9
2046.0    12.778    229.4
2056.0    13.646    227.2
2066.0    14.517    225.2
2076.0    15.387    223.5
2086.0    16.254    221.9
2096.0    17.117    220.6
2106.0    17.974    219.3
2116.0    18.823    218.1
2126.0    19.665    217.1
2136.0    20.498    216.1
2146.0    21.322    215.3
2156.0    22.136    214.4
2166.0    22.940    213.7
2176.0    23.734    213.0
2186.0    24.517    212.3
2196.0    25.289    211.7
2206.0    26.050    211.1
2216.0    26.800    210.5
2226.0    27.539    210.0
2236.0    28.267    209.5
2246.0    28.983    209.0
2256.0    29.688    208.6
2266.0    30.381    208.2
2276.0    31.063    207.7
2286.0    31.734    207.4
2296.0    32.393    207.0
2306.0    33.041    206.6
2316.0    33.677    206.3
2326.0    34.302    205.9
2336.0    34.915    205.6
2346.0    35.517    205.3
2356.0    36.108    205.0
2366.0    36.687    204.7
2376.0    37.255    204.4
2386.0    37.811    204.1
2396.0    38.356    203.9
2406.0    38.890    203.6
2416.0    39.412    203.4
2426.0    39.923    203.1
2436.0    40.423    202.9
2446.0    40.911    202.6
2456.0    41.388    202.4
2466.0    41.854    202.2
2476.0    42.309    202.0
2486.0    42.752    201.8
2496.0    43.184    201.6
2506.0    43.605    201.3
2516.0    44.014    201.1
2526.0    44.413    200.9
2536.0    44.800    200.8
2546.0    45.175    200.6
2556.0    45.539    200.4
2566.0    45.892    200.2
2576.0    46.234    200.0
2586.0    46.564    199.8
2596.0    46.883    199.6
2606.0    47.191    199.5
2616.0    47.487    199.3
2626.0    47.771    199.1
2636.0    48.044    199.0
2646.0    48.306    198.8
2656.0    48.556    198.6
2666.0    48.795    198.5
2676.0    49.021    198.3
2686.0    49.237    198.1
2696.0    49.440    198.0
2706.0    49.632    197.8
2716.0    49.811    197.7
2726.0    49.979    197.5
2736.0    50.135    197.4
2746.0    50.280    197.2
2756.0    50.412    197.1
2766.0    50.531    196.9
2776.0    50.639    196.8
2786.0    50.734    196.6
2796.0    50.817    196.5
2806.0    50.888    196.3
2816.0    50.946    196.2
2826.0    50.991    196.0
2836.0    51.024    195.9
2846.0    51.044    195.7
2856.0    51.050    195.6
2866.0    51.044    195.4
2876.0    51.025    195.3
2886.0    50.992    195.1
2896.0    50.946    195.0
2906.0    50.887    194.8
2916.0    50.814    194.7






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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