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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 18:05:06

Orbital Elements for STF1536AB
WDS: STF1536AB WDS ID/Discoverer
P: 184.457 Orbital period (years)
a: 1.91525 Semi-major axis (arcseconds)
i: 127.642 Inclination (degrees)
Ω: 54.376 Longitude of ascending node (degrees)
T: 1948.363 Epoch of periastron passage (year)
e: 0.53689 Eccentricity
ω: 142.829 Longitude of periastron (degrees)
Start-Year: 1933.0 Year
End-Year: 2117.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF1536AB
Position: 112355.37+103146.9 Epoch-2000 right ascension and declination
WDS-ID: 11239+1032 WDS designation
Discoverer Code: STF1536AB Discover designation and components
ADS number: 8148 Aitken Double Star catalog
HD number: 99028 HD catalog number
Hipparcos number: 55642 Hipparcos catalog number
V1: 4.06 Magnitude of the primary
V2: 6.71 Magnitude of the secondary
Equinox: 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 STF1536AB



WDS 6th Orbit including measures of STF1536AB

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


Ephemeris of STF1536AB
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     2.326     88.7
-------------------------
1933.0     1.007     12.7
1934.0     0.945      8.8
1935.0     0.885      4.4
1936.0     0.827    359.4
1937.0     0.772    353.6
1938.0     0.723    347.0
1939.0     0.680    339.5
1940.0     0.647    331.0
1941.0     0.624    321.9
1942.0     0.613    312.2
1943.0     0.615    302.4
1944.0     0.629    292.8
1945.0     0.654    283.8
1946.0     0.686    275.6
1947.0     0.724    268.1
1948.0     0.764    261.5
1949.0     0.805    255.5
1950.0     0.844    250.0
1951.0     0.881    245.1
1952.0     0.914    240.5
1953.0     0.943    236.2
1954.0     0.968    232.2
1955.0     0.989    228.3
1956.0     1.006    224.6
1957.0     1.019    221.0
1958.0     1.030    217.5
1959.0     1.038    214.1
1960.0     1.044    210.7
1961.0     1.048    207.3
1962.0     1.052    204.0
1963.0     1.054    200.6
1964.0     1.056    197.3
1965.0     1.059    194.0
1966.0     1.061    190.7
1967.0     1.064    187.5
1968.0     1.067    184.2
1969.0     1.072    181.0
1970.0     1.077    177.8
1971.0     1.083    174.6
1972.0     1.091    171.5
1973.0     1.100    168.4
1974.0     1.110    165.4
1975.0     1.122    162.5
1976.0     1.135    159.6
1977.0     1.149    156.7
1978.0     1.164    154.0
1979.0     1.181    151.3
1980.0     1.199    148.7
1981.0     1.218    146.2
1982.0     1.238    143.7
1983.0     1.259    141.3
1984.0     1.281    139.1
1985.0     1.303    136.8
1986.0     1.327    134.7
1987.0     1.351    132.6
1988.0     1.376    130.7
1989.0     1.401    128.8
1990.0     1.427    126.9
1991.0     1.453    125.1
1992.0     1.480    123.4
1993.0     1.507    121.8
1994.0     1.534    120.2
1995.0     1.561    118.6
1996.0     1.589    117.1
1997.0     1.617    115.7
1998.0     1.644    114.3
1999.0     1.672    113.0
2000.0     1.700    111.7
2001.0     1.728    110.4
2002.0     1.756    109.2
2003.0     1.783    108.0
2004.0     1.811    106.9
2005.0     1.838    105.8
2006.0     1.865    104.7
2007.0     1.893    103.6
2008.0     1.919    102.6
2009.0     1.946    101.6
2010.0     1.972    100.7
2011.0     1.998     99.7
2012.0     2.024     98.8
2013.0     2.050     97.9
2014.0     2.075     97.1
2015.0     2.100     96.2
2016.0     2.124     95.4
2017.0     2.148     94.6
2018.0     2.172     93.8
2019.0     2.195     93.0
2020.0     2.218     92.3
2021.0     2.241     91.5
2022.0     2.263     90.8
2023.0     2.284     90.1
2024.0     2.306     89.4
2025.0     2.326     88.7
2026.0     2.347     88.0
2027.0     2.366     87.4
2028.0     2.386     86.7
2029.0     2.405     86.1
2030.0     2.423     85.4
2031.0     2.441     84.8
2032.0     2.458     84.2
2033.0     2.475     83.6
2034.0     2.491     83.0
2035.0     2.507     82.4
2036.0     2.522     81.8
2037.0     2.537     81.2
2038.0     2.551     80.7
2039.0     2.564     80.1
2040.0     2.577     79.6
2041.0     2.590     79.0
2042.0     2.602     78.5
2043.0     2.613     77.9
2044.0     2.623     77.4
2045.0     2.633     76.8
2046.0     2.643     76.3
2047.0     2.651     75.8
2048.0     2.659     75.3
2049.0     2.667     74.7
2050.0     2.674     74.2
2051.0     2.680     73.7
2052.0     2.685     73.2
2053.0     2.690     72.7
2054.0     2.694     72.2
2055.0     2.698     71.7
2056.0     2.700     71.2
2057.0     2.702     70.7
2058.0     2.704     70.1
2059.0     2.704     69.6
2060.0     2.704     69.1
2061.0     2.703     68.6
2062.0     2.701     68.1
2063.0     2.699     67.6
2064.0     2.696     67.1
2065.0     2.692     66.6
2066.0     2.687     66.1
2067.0     2.681     65.6
2068.0     2.675     65.1
2069.0     2.668     64.6
2070.0     2.660     64.0
2071.0     2.651     63.5
2072.0     2.641     63.0
2073.0     2.630     62.5
2074.0     2.619     61.9
2075.0     2.606     61.4
2076.0     2.593     60.8
2077.0     2.579     60.3
2078.0     2.563     59.7
2079.0     2.547     59.2
2080.0     2.530     58.6
2081.0     2.511     58.0
2082.0     2.492     57.4
2083.0     2.472     56.8
2084.0     2.451     56.2
2085.0     2.428     55.6
2086.0     2.405     55.0
2087.0     2.380     54.3
2088.0     2.354     53.7
2089.0     2.327     53.0
2090.0     2.299     52.3
2091.0     2.270     51.6
2092.0     2.239     50.9
2093.0     2.208     50.1
2094.0     2.175     49.3
2095.0     2.140     48.6
2096.0     2.105     47.7
2097.0     2.068     46.9
2098.0     2.029     46.0
2099.0     1.990     45.1
2100.0     1.949     44.1
2101.0     1.906     43.1
2102.0     1.862     42.1
2103.0     1.817     41.0
2104.0     1.770     39.9
2105.0     1.721     38.7
2106.0     1.672     37.4
2107.0     1.620     36.0
2108.0     1.567     34.6
2109.0     1.513     33.0
2110.0     1.457     31.3
2111.0     1.400     29.5
2112.0     1.342     27.6
2113.0     1.282     25.4
2114.0     1.221     23.1
2115.0     1.160     20.5
2116.0     1.097     17.6



 

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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