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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:06:02

Orbital Elements for STT235AB
WDS: STT235AB WDS ID/Discoverer
P: 72.934 Orbital period (years)
a: 0.79322 Semi-major axis (arcseconds)
i: 46.829 Inclination (degrees)
Ω: 81.407 Longitude of ascending node (degrees)
T: 1981.910 Epoch of periastron passage (year)
e: 0.39823 Eccentricity
ω: 132.571 Longitude of periastron (degrees)
Start-Year: 1989.0 Year
End-Year: 2061.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STT235AB
Position: 113220.76+610457.9 Epoch-2000 right ascension and declination
WDS-ID: 11323+6105 WDS designation
Discoverer Code: STT235AB Discover designation and components
ADS number: 8197 Aitken Double Star catalog
HD number: 100203 HD catalog number
Hipparcos number: 56290 Hipparcos catalog number
V1: 5.69 Magnitude of the primary
V2: 7.55 Magnitude of the secondary
Equinox: Equinox
Date: 2013 Date of last observation
Orbit grade: 1 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STT235AB



WDS 6th Orbit including measures of STT235AB

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


Ephemeris of STT235AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.999     58.4
-------------------------
1989.0     0.569    280.9
1990.0     0.576    286.9
1991.0     0.580    292.7
1992.0     0.583    298.5
1993.0     0.585    304.2
1994.0     0.587    309.9
1995.0     0.590    315.5
1996.0     0.593    321.1
1997.0     0.598    326.6
1998.0     0.605    331.9
1999.0     0.613    337.2
2000.0     0.623    342.3
2001.0     0.635    347.2
2002.0     0.648    352.0
2003.0     0.662    356.5
2004.0     0.678      0.9
2005.0     0.695      5.0
2006.0     0.713      8.9
2007.0     0.731     12.7
2008.0     0.750     16.2
2009.0     0.770     19.6
2010.0     0.789     22.8
2011.0     0.808     25.9
2012.0     0.828     28.8
2013.0     0.846     31.6
2014.0     0.865     34.2
2015.0     0.882     36.8
2016.0     0.899     39.2
2017.0     0.915     41.6
2018.0     0.930     43.9
2019.0     0.944     46.1
2020.0     0.957     48.3
2021.0     0.968     50.4
2022.0     0.978     52.4
2023.0     0.987     54.4
2024.0     0.994     56.4
2025.0     0.999     58.4
2026.0     1.003     60.3
2027.0     1.005     62.3
2028.0     1.005     64.2
2029.0     1.002     66.1
2030.0     0.998     68.1
2031.0     0.991     70.0
2032.0     0.982     72.0
2033.0     0.971     74.1
2034.0     0.957     76.2
2035.0     0.940     78.3
2036.0     0.921     80.6
2037.0     0.899     83.0
2038.0     0.873     85.4
2039.0     0.845     88.1
2040.0     0.814     90.9
2041.0     0.779     94.0
2042.0     0.741     97.4
2043.0     0.700    101.1
2044.0     0.656    105.4
2045.0     0.610    110.2
2046.0     0.561    115.9
2047.0     0.512    122.7
2048.0     0.464    130.9
2049.0     0.420    140.9
2050.0     0.382    153.1
2051.0     0.357    167.5
2052.0     0.348    183.3
2053.0     0.355    199.2
2054.0     0.377    213.9
2055.0     0.408    226.6
2056.0     0.442    237.4
2057.0     0.475    246.7
2058.0     0.504    254.8
2059.0     0.528    262.1
2060.0     0.547    268.9






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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