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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 17:41:59

Orbital Elements for I10AB
WDS: I10AB WDS ID/Discoverer
P: 146.970 Orbital period (years)
a: 2.002 Semi-major axis (arcseconds)
i: 105.6 Inclination (degrees)
Ω: 344.7 Longitude of ascending node (degrees)
T: 2000.780 Epoch of periastron passage (year)
e: 0.482 Eccentricity
ω: 8.5 Longitude of periastron (degrees)
Start-Year: 1952.0 Year
End-Year: 2098.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for I10AB
Position: 084442.23-544231.8 Epoch-2000 right ascension and declination
WDS-ID: 08447-5443 WDS designation
Discoverer Code: I10AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 74956 HD catalog number
Hipparcos number: 42913 Hipparcos catalog number
V1: 1.99 Magnitude of the primary
V2: 5.57 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2010 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for I10AB



WDS 6th Orbit including measures of I10AB

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


Ephemeris of I10AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     1.188    186.0
-------------------------
1952.0     2.289    154.4
1953.0     2.242    153.9
1954.0     2.195    153.5
1955.0     2.146    153.0
1956.0     2.095    152.5
1957.0     2.043    151.9
1958.0     1.989    151.3
1959.0     1.934    150.7
1960.0     1.877    150.1
1961.0     1.819    149.4
1962.0     1.759    148.7
1963.0     1.698    147.9
1964.0     1.636    147.1
1965.0     1.572    146.2
1966.0     1.507    145.2
1967.0     1.441    144.2
1968.0     1.374    143.0
1969.0     1.305    141.7
1970.0     1.236    140.3
1971.0     1.166    138.7
1972.0     1.095    136.9
1973.0     1.024    134.8
1974.0     0.952    132.4
1975.0     0.881    129.7
1976.0     0.811    126.4
1977.0     0.742    122.6
1978.0     0.676    118.0
1979.0     0.614    112.4
1980.0     0.557    105.6
1981.0     0.508     97.4
1982.0     0.471     87.7
1983.0     0.447     76.6
1984.0     0.441     64.8
1985.0     0.451     53.1
1986.0     0.478     42.3
1987.0     0.517     32.9
1988.0     0.566     25.0
1989.0     0.621     18.4
1990.0     0.679     12.9
1991.0     0.739      8.3
1992.0     0.798      4.4
1993.0     0.853      1.0
1994.0     0.905    358.0
1995.0     0.950    355.3
1996.0     0.988    352.9
1997.0     1.017    350.6
1998.0     1.035    348.4
1999.0     1.043    346.2
2000.0     1.038    344.1
2001.0     1.022    341.9
2002.0     0.994    339.6
2003.0     0.954    337.2
2004.0     0.904    334.5
2005.0     0.846    331.5
2006.0     0.781    328.0
2007.0     0.712    323.9
2008.0     0.640    318.8
2009.0     0.569    312.4
2010.0     0.502    304.3
2011.0     0.444    293.9
2012.0     0.403    280.9
2013.0     0.384    265.7
2014.0     0.391    250.1
2015.0     0.423    236.0
2016.0     0.475    224.4
2017.0     0.540    215.3
2018.0     0.614    208.3
2019.0     0.693    202.9
2020.0     0.774    198.6
2021.0     0.857    195.1
2022.0     0.941    192.2
2023.0     1.024    189.8
2024.0     1.106    187.8
2025.0     1.188    186.0
2026.0     1.267    184.5
2027.0     1.346    183.1
2028.0     1.422    181.9
2029.0     1.497    180.8
2030.0     1.570    179.9
2031.0     1.641    179.0
2032.0     1.710    178.1
2033.0     1.778    177.4
2034.0     1.843    176.7
2035.0     1.906    176.0
2036.0     1.967    175.4
2037.0     2.027    174.8
2038.0     2.084    174.3
2039.0     2.139    173.7
2040.0     2.193    173.2
2041.0     2.244    172.8
2042.0     2.294    172.3
2043.0     2.342    171.9
2044.0     2.387    171.5
2045.0     2.431    171.1
2046.0     2.473    170.7
2047.0     2.513    170.3
2048.0     2.552    170.0
2049.0     2.588    169.6
2050.0     2.623    169.3
2051.0     2.655    168.9
2052.0     2.686    168.6
2053.0     2.716    168.3
2054.0     2.743    168.0
2055.0     2.769    167.7
2056.0     2.793    167.4
2057.0     2.815    167.1
2058.0     2.836    166.8
2059.0     2.855    166.5
2060.0     2.872    166.2
2061.0     2.887    166.0
2062.0     2.901    165.7
2063.0     2.913    165.4
2064.0     2.923    165.1
2065.0     2.932    164.9
2066.0     2.939    164.6
2067.0     2.945    164.3
2068.0     2.949    164.1
2069.0     2.951    163.8
2070.0     2.952    163.5
2071.0     2.951    163.3
2072.0     2.948    163.0
2073.0     2.944    162.7
2074.0     2.939    162.5
2075.0     2.931    162.2
2076.0     2.922    161.9
2077.0     2.912    161.7
2078.0     2.900    161.4
2079.0     2.886    161.1
2080.0     2.871    160.8
2081.0     2.854    160.5
2082.0     2.836    160.3
2083.0     2.816    160.0
2084.0     2.795    159.7
2085.0     2.772    159.4
2086.0     2.747    159.1
2087.0     2.721    158.8
2088.0     2.693    158.5
2089.0     2.664    158.1
2090.0     2.634    157.8
2091.0     2.601    157.5
2092.0     2.567    157.1
2093.0     2.532    156.8
2094.0     2.495    156.4
2095.0     2.457    156.0
2096.0     2.417    155.6
2097.0     2.375    155.2






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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