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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 17:46:59

Orbital Elements for A222
WDS: A222 WDS ID/Discoverer
P: 155.080 Orbital period (years)
a: 0.32 Semi-major axis (arcseconds)
i: 123.5 Inclination (degrees)
Ω: 191.1 Longitude of ascending node (degrees)
T: 1963.430 Epoch of periastron passage (year)
e: 0.367 Eccentricity
ω: 40.3 Longitude of periastron (degrees)
Start-Year: 1948.0 Year
End-Year: 2102.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A222
Position: 092602.33+283901.5 Epoch-2000 right ascension and declination
WDS-ID: 09260+2839 WDS designation
Discoverer Code: A222 Discover designation and components
ADS number: 7365 Aitken Double Star catalog
HD number: 81387 HD catalog number
Hipparcos number: 46269 Hipparcos catalog number
V1: 9.13 Magnitude of the primary
V2: 9.41 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2009 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for A222



WDS 6th Orbit including measures of A222

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


Ephemeris of A222
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.404    358.9
-------------------------
1948.0     0.224    209.8
1949.0     0.224    207.4
1950.0     0.225    205.0
1951.0     0.225    202.6
1952.0     0.224    200.1
1953.0     0.223    197.7
1954.0     0.221    195.2
1955.0     0.218    192.7
1956.0     0.215    190.1
1957.0     0.211    187.4
1958.0     0.206    184.6
1959.0     0.201    181.6
1960.0     0.195    178.5
1961.0     0.189    175.2
1962.0     0.181    171.7
1963.0     0.174    167.8
1964.0     0.166    163.6
1965.0     0.158    158.9
1966.0     0.151    153.8
1967.0     0.143    148.1
1968.0     0.137    141.9
1969.0     0.131    135.0
1970.0     0.126    127.7
1971.0     0.123    119.8
1972.0     0.122    111.7
1973.0     0.123    103.6
1974.0     0.125     95.6
1975.0     0.130     88.1
1976.0     0.135     81.1
1977.0     0.142     74.8
1978.0     0.150     69.1
1979.0     0.159     64.0
1980.0     0.169     59.4
1981.0     0.178     55.4
1982.0     0.188     51.7
1983.0     0.198     48.5
1984.0     0.209     45.5
1985.0     0.219     42.8
1986.0     0.229     40.4
1987.0     0.239     38.2
1988.0     0.248     36.1
1989.0     0.258     34.2
1990.0     0.267     32.4
1991.0     0.276     30.8
1992.0     0.285     29.2
1993.0     0.293     27.8
1994.0     0.301     26.4
1995.0     0.309     25.1
1996.0     0.316     23.8
1997.0     0.323     22.6
1998.0     0.330     21.5
1999.0     0.337     20.4
2000.0     0.343     19.3
2001.0     0.349     18.3
2002.0     0.354     17.3
2003.0     0.359     16.4
2004.0     0.364     15.4
2005.0     0.369     14.5
2006.0     0.373     13.6
2007.0     0.377     12.8
2008.0     0.381     11.9
2009.0     0.385     11.1
2010.0     0.388     10.3
2011.0     0.391      9.5
2012.0     0.393      8.7
2013.0     0.396      7.9
2014.0     0.398      7.1
2015.0     0.399      6.3
2016.0     0.401      5.6
2017.0     0.402      4.8
2018.0     0.403      4.1
2019.0     0.404      3.3
2020.0     0.405      2.6
2021.0     0.405      1.8
2022.0     0.405      1.1
2023.0     0.405      0.3
2024.0     0.405    359.6
2025.0     0.404    358.9
2026.0     0.403    358.1
2027.0     0.402    357.4
2028.0     0.401    356.6
2029.0     0.400    355.8
2030.0     0.398    355.1
2031.0     0.396    354.3
2032.0     0.394    353.5
2033.0     0.392    352.7
2034.0     0.390    351.9
2035.0     0.387    351.1
2036.0     0.384    350.3
2037.0     0.381    349.5
2038.0     0.378    348.6
2039.0     0.375    347.8
2040.0     0.372    346.9
2041.0     0.368    346.0
2042.0     0.365    345.1
2043.0     0.361    344.2
2044.0     0.357    343.2
2045.0     0.353    342.2
2046.0     0.349    341.2
2047.0     0.344    340.2
2048.0     0.340    339.2
2049.0     0.335    338.1
2050.0     0.331    337.0
2051.0     0.326    335.9
2052.0     0.321    334.7
2053.0     0.316    333.5
2054.0     0.311    332.3
2055.0     0.306    331.0
2056.0     0.301    329.7
2057.0     0.296    328.3
2058.0     0.291    326.9
2059.0     0.286    325.4
2060.0     0.280    323.9
2061.0     0.275    322.3
2062.0     0.270    320.7
2063.0     0.265    319.0
2064.0     0.260    317.2
2065.0     0.255    315.3
2066.0     0.250    313.4
2067.0     0.245    311.4
2068.0     0.240    309.3
2069.0     0.235    307.2
2070.0     0.231    304.9
2071.0     0.227    302.6
2072.0     0.222    300.2
2073.0     0.218    297.7
2074.0     0.215    295.1
2075.0     0.211    292.4
2076.0     0.208    289.6
2077.0     0.205    286.7
2078.0     0.202    283.8
2079.0     0.200    280.8
2080.0     0.198    277.7
2081.0     0.197    274.6
2082.0     0.195    271.4
2083.0     0.195    268.2
2084.0     0.194    264.9
2085.0     0.194    261.7
2086.0     0.194    258.5
2087.0     0.195    255.2
2088.0     0.195    252.0
2089.0     0.197    248.8
2090.0     0.198    245.7
2091.0     0.200    242.6
2092.0     0.202    239.6
2093.0     0.204    236.6
2094.0     0.206    233.7
2095.0     0.208    230.9
2096.0     0.210    228.1
2097.0     0.213    225.3
2098.0     0.215    222.7
2099.0     0.217    220.1
2100.0     0.219    217.5
2101.0     0.221    215.0



 

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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