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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 17:32:11

Orbital Elements for STF1037AB
WDS: STF1037AB WDS ID/Discoverer
P: 118.350 Orbital period (years)
a: 0.794 Semi-major axis (arcseconds)
i: 144.7 Inclination (degrees)
Ω: 38.5 Longitude of ascending node (degrees)
T: 1920.340 Epoch of periastron passage (year)
e: 0.933 Eccentricity
ω: 259.5 Longitude of periastron (degrees)
Start-Year: 1966.0 Year
End-Year: 2084.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF1037AB
Position: 071249.08+271330.2 Epoch-2000 right ascension and declination
WDS-ID: 07128+2713 WDS designation
Discoverer Code: STF1037AB Discover designation and components
ADS number: 5871 Aitken Double Star catalog
HD number: 55130 HD catalog number
Hipparcos number: 34860 Hipparcos catalog number
V1: 7.24 Magnitude of the primary
V2: 7.27 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2014 Date of last observation
Orbit grade: 2 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STF1037AB



WDS 6th Orbit including measures of STF1037AB

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


Ephemeris of STF1037AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.704    297.6
-------------------------
1966.0     1.230    326.1
1967.0     1.235    325.8
1968.0     1.240    325.4
1969.0     1.244    325.0
1970.0     1.248    324.7
1971.0     1.252    324.3
1972.0     1.255    324.0
1973.0     1.257    323.6
1974.0     1.259    323.2
1975.0     1.261    322.9
1976.0     1.262    322.5
1977.0     1.263    322.2
1978.0     1.263    321.8
1979.0     1.263    321.5
1980.0     1.263    321.1
1981.0     1.262    320.8
1982.0     1.260    320.4
1983.0     1.258    320.1
1984.0     1.256    319.7
1985.0     1.253    319.3
1986.0     1.250    319.0
1987.0     1.246    318.6
1988.0     1.242    318.3
1989.0     1.238    317.9
1990.0     1.232    317.5
1991.0     1.227    317.2
1992.0     1.221    316.8
1993.0     1.215    316.4
1994.0     1.208    316.0
1995.0     1.200    315.6
1996.0     1.192    315.2
1997.0     1.184    314.8
1998.0     1.175    314.4
1999.0     1.166    314.0
2000.0     1.156    313.6
2001.0     1.146    313.2
2002.0     1.135    312.7
2003.0     1.123    312.3
2004.0     1.111    311.8
2005.0     1.099    311.4
2006.0     1.086    310.9
2007.0     1.072    310.4
2008.0     1.058    309.9
2009.0     1.043    309.4
2010.0     1.028    308.9
2011.0     1.011    308.4
2012.0     0.995    307.8
2013.0     0.977    307.2
2014.0     0.959    306.6
2015.0     0.940    306.0
2016.0     0.921    305.3
2017.0     0.900    304.7
2018.0     0.879    303.9
2019.0     0.857    303.2
2020.0     0.834    302.4
2021.0     0.810    301.6
2022.0     0.785    300.7
2023.0     0.759    299.8
2024.0     0.732    298.7
2025.0     0.704    297.6
2026.0     0.674    296.5
2027.0     0.643    295.2
2028.0     0.611    293.7
2029.0     0.576    292.1
2030.0     0.540    290.3
2031.0     0.502    288.2
2032.0     0.461    285.8
2033.0     0.418    282.9
2034.0     0.370    279.3
2035.0     0.319    274.5
2036.0     0.261    267.7
2037.0     0.194    256.7
2038.0     0.110    231.1
2039.0     0.066     71.9
2040.0     0.174     25.4
2041.0     0.254     12.8
2042.0     0.320      5.9
2043.0     0.378      1.2
2044.0     0.430    357.8
2045.0     0.477    355.0
2046.0     0.520    352.8
2047.0     0.561    350.8
2048.0     0.599    349.2
2049.0     0.635    347.7
2050.0     0.668    346.4
2051.0     0.700    345.2
2052.0     0.731    344.1
2053.0     0.760    343.0
2054.0     0.787    342.1
2055.0     0.814    341.2
2056.0     0.839    340.4
2057.0     0.863    339.6
2058.0     0.886    338.9
2059.0     0.908    338.2
2060.0     0.929    337.5
2061.0     0.949    336.9
2062.0     0.968    336.3
2063.0     0.987    335.7
2064.0     1.005    335.1
2065.0     1.022    334.6
2066.0     1.038    334.0
2067.0     1.053    333.5
2068.0     1.068    333.0
2069.0     1.083    332.5
2070.0     1.096    332.0
2071.0     1.109    331.6
2072.0     1.122    331.1
2073.0     1.133    330.7
2074.0     1.145    330.3
2075.0     1.155    329.8
2076.0     1.165    329.4
2077.0     1.175    329.0
2078.0     1.184    328.6
2079.0     1.193    328.2
2080.0     1.201    327.8
2081.0     1.208    327.4
2082.0     1.215    327.0
2083.0     1.222    326.6






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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