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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 19:37:49

Orbital Elements for I22AB
WDS: I22AB WDS ID/Discoverer
P: 151.900 Orbital period (years)
a: 0.805 Semi-major axis (arcseconds)
i: 86.8 Inclination (degrees)
Ω: 174.8 Longitude of ascending node (degrees)
T: 2001.600 Epoch of periastron passage (year)
e: 0.734 Eccentricity
ω: 263.8 Longitude of periastron (degrees)
Start-Year: 1950.0 Year
End-Year: 2100.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for I22AB
Position: 225516.15-482756.6 Epoch-2000 right ascension and declination
WDS-ID: 22553-4828 WDS designation
Discoverer Code: I22AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 216655 HD catalog number
Hipparcos number: 113191 Hipparcos catalog number
V1: 7.29 Magnitude of the primary
V2: 8.91 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2017 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for I22AB



WDS 6th Orbit including measures of I22AB

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


Ephemeris of I22AB
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.615    178.1
-------------------------
1950.0     0.184    331.8
1951.0     0.195    333.5
1952.0     0.207    334.9
1953.0     0.219    336.2
1954.0     0.230    337.4
1955.0     0.242    338.4
1956.0     0.254    339.3
1957.0     0.265    340.2
1958.0     0.277    341.0
1959.0     0.288    341.7
1960.0     0.300    342.4
1961.0     0.311    343.0
1962.0     0.322    343.6
1963.0     0.333    344.2
1964.0     0.344    344.7
1965.0     0.354    345.1
1966.0     0.365    345.6
1967.0     0.375    346.0
1968.0     0.385    346.4
1969.0     0.394    346.8
1970.0     0.404    347.2
1971.0     0.413    347.5
1972.0     0.422    347.9
1973.0     0.430    348.2
1974.0     0.438    348.5
1975.0     0.445    348.8
1976.0     0.453    349.1
1977.0     0.459    349.4
1978.0     0.465    349.6
1979.0     0.471    349.9
1980.0     0.476    350.1
1981.0     0.480    350.4
1982.0     0.483    350.7
1983.0     0.486    350.9
1984.0     0.487    351.2
1985.0     0.487    351.4
1986.0     0.487    351.6
1987.0     0.485    351.9
1988.0     0.481    352.1
1989.0     0.476    352.4
1990.0     0.468    352.7
1991.0     0.458    352.9
1992.0     0.446    353.2
1993.0     0.430    353.5
1994.0     0.411    353.8
1995.0     0.386    354.2
1996.0     0.356    354.6
1997.0     0.320    355.1
1998.0     0.274    355.8
1999.0     0.218    356.8
2000.0     0.151    358.5
2001.0     0.074      3.6
2002.0     0.016    126.7
2003.0     0.095    167.8
2004.0     0.170    171.3
2005.0     0.237    172.8
2006.0     0.295    173.6
2007.0     0.343    174.2
2008.0     0.385    174.6
2009.0     0.421    175.0
2010.0     0.452    175.3
2011.0     0.478    175.6
2012.0     0.501    175.8
2013.0     0.521    176.0
2014.0     0.538    176.2
2015.0     0.553    176.4
2016.0     0.565    176.6
2017.0     0.576    176.8
2018.0     0.585    177.0
2019.0     0.593    177.1
2020.0     0.599    177.3
2021.0     0.605    177.4
2022.0     0.609    177.6
2023.0     0.612    177.8
2024.0     0.614    177.9
2025.0     0.615    178.1
2026.0     0.615    178.2
2027.0     0.615    178.4
2028.0     0.614    178.5
2029.0     0.612    178.7
2030.0     0.610    178.8
2031.0     0.607    179.0
2032.0     0.604    179.2
2033.0     0.600    179.3
2034.0     0.595    179.5
2035.0     0.590    179.7
2036.0     0.585    179.8
2037.0     0.580    180.0
2038.0     0.574    180.2
2039.0     0.567    180.3
2040.0     0.560    180.5
2041.0     0.553    180.7
2042.0     0.546    180.9
2043.0     0.538    181.1
2044.0     0.530    181.3
2045.0     0.522    181.5
2046.0     0.514    181.7
2047.0     0.505    182.0
2048.0     0.496    182.2
2049.0     0.487    182.4
2050.0     0.477    182.7
2051.0     0.468    182.9
2052.0     0.458    183.2
2053.0     0.448    183.5
2054.0     0.438    183.8
2055.0     0.427    184.1
2056.0     0.417    184.4
2057.0     0.406    184.8
2058.0     0.396    185.1
2059.0     0.385    185.5
2060.0     0.374    185.9
2061.0     0.363    186.4
2062.0     0.351    186.8
2063.0     0.340    187.3
2064.0     0.329    187.8
2065.0     0.317    188.4
2066.0     0.305    189.0
2067.0     0.294    189.6
2068.0     0.282    190.3
2069.0     0.270    191.1
2070.0     0.258    191.9
2071.0     0.247    192.9
2072.0     0.235    193.9
2073.0     0.223    195.0
2074.0     0.211    196.2
2075.0     0.199    197.6
2076.0     0.187    199.2
2077.0     0.176    200.9
2078.0     0.164    202.9
2079.0     0.153    205.3
2080.0     0.142    207.9
2081.0     0.131    211.1
2082.0     0.121    214.7
2083.0     0.111    219.1
2084.0     0.102    224.2
2085.0     0.094    230.3
2086.0     0.087    237.5
2087.0     0.082    245.7
2088.0     0.078    254.9
2089.0     0.077    264.7
2090.0     0.078    274.5
2091.0     0.081    283.9
2092.0     0.086    292.4
2093.0     0.092    299.7
2094.0     0.100    306.1
2095.0     0.109    311.4
2096.0     0.119    315.9
2097.0     0.129    319.7
2098.0     0.140    323.0
2099.0     0.151    325.7



 

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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