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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 17:16:04

Orbital Elements for STF774AB
WDS: STF774AB WDS ID/Discoverer
P: 1508.600 Orbital period (years)
a: 2.728 Semi-major axis (arcseconds)
i: 72.0 Inclination (degrees)
Ω: 155.5 Longitude of ascending node (degrees)
T: 2070.600 Epoch of periastron passage (year)
e: 0.07 Eccentricity
ω: 47.3 Longitude of periastron (degrees)
Start-Year: 1271.0 Year
End-Year: 2779.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF774AB
Position: 054045.52-015633.3 Epoch-2000 right ascension and declination
WDS-ID: 05407-0157 WDS designation
Discoverer Code: STF774AB Discover designation and components
ADS number: 4263 Aitken Double Star catalog
HD number: 37742 HD catalog number
Hipparcos number: 26727 Hipparcos catalog number
V1: 1.88 Magnitude of the primary
V2: 3.70 Magnitude of the secondary
Equinox: 1900 Equinox
Date: 1955 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STF774AB



WDS 6th Orbit including measures of STF774AB

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


Ephemeris of STF774AB
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     2.135    167.6
-------------------------
1271.0     2.367    349.0
1281.0     2.310    350.0
1291.0     2.250    351.1
1301.0     2.187    352.2
1311.0     2.123    353.4
1321.0     2.056    354.6
1331.0     1.987    356.0
1341.0     1.917    357.4
1351.0     1.846    358.9
1361.0     1.773      0.6
1371.0     1.699      2.4
1381.0     1.625      4.4
1391.0     1.550      6.6
1401.0     1.476      9.0
1411.0     1.403     11.6
1421.0     1.331     14.6
1431.0     1.261     17.8
1441.0     1.193     21.5
1451.0     1.129     25.5
1461.0     1.070     30.1
1471.0     1.017     35.1
1481.0     0.971     40.6
1491.0     0.934     46.7
1501.0     0.906     53.2
1511.0     0.889     60.0
1521.0     0.884     66.9
1531.0     0.891     73.9
1541.0     0.909     80.7
1551.0     0.938     87.1
1561.0     0.977     93.1
1571.0     1.023     98.6
1581.0     1.077    103.6
1591.0     1.137    108.0
1601.0     1.200    112.0
1611.0     1.268    115.6
1621.0     1.337    118.9
1631.0     1.409    121.8
1641.0     1.481    124.4
1651.0     1.554    126.8
1661.0     1.626    128.9
1671.0     1.698    130.9
1681.0     1.770    132.7
1691.0     1.839    134.4
1701.0     1.907    136.0
1711.0     1.973    137.4
1721.0     2.037    138.8
1731.0     2.099    140.1
1741.0     2.157    141.3
1751.0     2.213    142.4
1761.0     2.265    143.5
1771.0     2.315    144.6
1781.0     2.360    145.6
1791.0     2.403    146.5
1801.0     2.441    147.5
1811.0     2.475    148.4
1821.0     2.505    149.3
1831.0     2.531    150.1
1841.0     2.553    151.0
1851.0     2.570    151.8
1861.0     2.583    152.6
1871.0     2.591    153.4
1881.0     2.595    154.3
1891.0     2.594    155.1
1901.0     2.588    155.9
1911.0     2.578    156.7
1921.0     2.563    157.5
1931.0     2.543    158.4
1941.0     2.518    159.2
1951.0     2.489    160.1
1961.0     2.455    161.0
1971.0     2.416    161.9
1981.0     2.373    162.9
1991.0     2.326    163.9
2001.0     2.275    164.9
2011.0     2.219    166.0
2021.0     2.160    167.1
2031.0     2.097    168.3
2041.0     2.030    169.6
2051.0     1.960    171.0
2061.0     1.887    172.5
2071.0     1.811    174.1
2081.0     1.733    175.8
2091.0     1.653    177.7
2101.0     1.572    179.8
2111.0     1.489    182.2
2121.0     1.406    184.8
2131.0     1.323    187.7
2141.0     1.242    191.1
2151.0     1.162    194.9
2161.0     1.086    199.2
2171.0     1.015    204.2
2181.0     0.950    209.9
2191.0     0.894    216.3
2201.0     0.849    223.5
2211.0     0.817    231.4
2221.0     0.800    239.8
2231.0     0.799    248.4
2241.0     0.815    256.9
2251.0     0.845    264.8
2261.0     0.889    272.1
2271.0     0.944    278.7
2281.0     1.008    284.4
2291.0     1.079    289.5
2301.0     1.155    293.9
2311.0     1.235    297.7
2321.0     1.317    301.1
2331.0     1.401    304.1
2341.0     1.485    306.7
2351.0     1.570    309.0
2361.0     1.654    311.1
2371.0     1.737    313.0
2381.0     1.818    314.8
2391.0     1.898    316.4
2401.0     1.976    317.8
2411.0     2.051    319.2
2421.0     2.124    320.4
2431.0     2.194    321.6
2441.0     2.261    322.7
2451.0     2.325    323.8
2461.0     2.386    324.7
2471.0     2.443    325.7
2481.0     2.497    326.6
2491.0     2.548    327.4
2501.0     2.594    328.3
2511.0     2.637    329.1
2521.0     2.676    329.8
2531.0     2.712    330.6
2541.0     2.743    331.3
2551.0     2.771    332.0
2561.0     2.795    332.8
2571.0     2.814    333.5
2581.0     2.830    334.1
2591.0     2.842    334.8
2601.0     2.850    335.5
2611.0     2.854    336.2
2621.0     2.854    336.8
2631.0     2.850    337.5
2641.0     2.842    338.2
2651.0     2.831    338.9
2661.0     2.815    339.6
2671.0     2.796    340.3
2681.0     2.773    341.0
2691.0     2.747    341.7
2701.0     2.717    342.4
2711.0     2.683    343.2
2721.0     2.647    343.9
2731.0     2.606    344.7
2741.0     2.563    345.5
2751.0     2.517    346.4
2761.0     2.467    347.3
2771.0     2.415    348.2



 

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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