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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 16:25:33

Orbital Elements for A2308
WDS: A2308 WDS ID/Discoverer
P: 141.800 Orbital period (years)
a: 0.367 Semi-major axis (arcseconds)
i: 62.9 Inclination (degrees)
Ω: 306.6 Longitude of ascending node (degrees)
T: 1958.950 Epoch of periastron passage (year)
e: 0.124 Eccentricity
ω: 10.5 Longitude of periastron (degrees)
Start-Year: 1955.0 Year
End-Year: 2095.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A2308
Position: 010245.24+021341.6 Epoch-2000 right ascension and declination
WDS-ID: 01028+0214 WDS designation
Discoverer Code: A2308 Discover designation and components
ADS number: 864 Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 4886 Hipparcos catalog number
V1: 9.87 Magnitude of the primary
V2: 11.73 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2014 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for A2308



WDS 6th Orbit including measures of A2308

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


Ephemeris of A2308
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.412    127.0
-------------------------
1955.0     0.322    305.5
1956.0     0.322    307.0
1957.0     0.321    308.5
1958.0     0.319    310.0
1959.0     0.317    311.5
1960.0     0.314    313.1
1961.0     0.310    314.6
1962.0     0.306    316.3
1963.0     0.301    317.9
1964.0     0.295    319.7
1965.0     0.289    321.5
1966.0     0.282    323.4
1967.0     0.275    325.4
1968.0     0.268    327.5
1969.0     0.260    329.7
1970.0     0.251    332.1
1971.0     0.243    334.6
1972.0     0.234    337.3
1973.0     0.225    340.2
1974.0     0.217    343.4
1975.0     0.208    346.8
1976.0     0.200    350.5
1977.0     0.192    354.6
1978.0     0.185    358.9
1979.0     0.178      3.6
1980.0     0.172      8.6
1981.0     0.168     14.0
1982.0     0.164     19.6
1983.0     0.162     25.5
1984.0     0.161     31.4
1985.0     0.161     37.4
1986.0     0.163     43.3
1987.0     0.166     49.0
1988.0     0.170     54.5
1989.0     0.176     59.7
1990.0     0.182     64.5
1991.0     0.190     69.0
1992.0     0.198     73.1
1993.0     0.206     76.9
1994.0     0.215     80.4
1995.0     0.224     83.6
1996.0     0.234     86.5
1997.0     0.243     89.3
1998.0     0.253     91.8
1999.0     0.263     94.1
2000.0     0.273     96.2
2001.0     0.282     98.2
2002.0     0.292    100.1
2003.0     0.301    101.9
2004.0     0.310    103.5
2005.0     0.319    105.1
2006.0     0.327    106.6
2007.0     0.335    108.0
2008.0     0.343    109.4
2009.0     0.350    110.6
2010.0     0.357    111.9
2011.0     0.364    113.1
2012.0     0.370    114.2
2013.0     0.376    115.3
2014.0     0.382    116.4
2015.0     0.387    117.4
2016.0     0.391    118.5
2017.0     0.395    119.5
2018.0     0.399    120.4
2019.0     0.402    121.4
2020.0     0.405    122.4
2021.0     0.407    123.3
2022.0     0.409    124.2
2023.0     0.410    125.1
2024.0     0.411    126.1
2025.0     0.412    127.0
2026.0     0.412    127.9
2027.0     0.411    128.8
2028.0     0.410    129.7
2029.0     0.409    130.6
2030.0     0.407    131.6
2031.0     0.404    132.5
2032.0     0.402    133.5
2033.0     0.398    134.4
2034.0     0.395    135.4
2035.0     0.390    136.4
2036.0     0.386    137.4
2037.0     0.381    138.5
2038.0     0.376    139.6
2039.0     0.370    140.7
2040.0     0.364    141.8
2041.0     0.357    143.0
2042.0     0.350    144.2
2043.0     0.343    145.5
2044.0     0.336    146.9
2045.0     0.328    148.3
2046.0     0.320    149.8
2047.0     0.312    151.3
2048.0     0.303    152.9
2049.0     0.294    154.7
2050.0     0.285    156.5
2051.0     0.276    158.5
2052.0     0.267    160.6
2053.0     0.258    162.8
2054.0     0.249    165.2
2055.0     0.240    167.8
2056.0     0.231    170.6
2057.0     0.222    173.6
2058.0     0.214    176.8
2059.0     0.206    180.3
2060.0     0.198    184.1
2061.0     0.192    188.2
2062.0     0.185    192.5
2063.0     0.180    197.2
2064.0     0.175    202.1
2065.0     0.172    207.2
2066.0     0.169    212.5
2067.0     0.168    218.0
2068.0     0.168    223.4
2069.0     0.169    228.9
2070.0     0.172    234.2
2071.0     0.175    239.3
2072.0     0.180    244.2
2073.0     0.185    248.9
2074.0     0.191    253.3
2075.0     0.198    257.4
2076.0     0.205    261.2
2077.0     0.212    264.8
2078.0     0.220    268.1
2079.0     0.228    271.1
2080.0     0.236    274.0
2081.0     0.245    276.7
2082.0     0.253    279.2
2083.0     0.260    281.5
2084.0     0.268    283.7
2085.0     0.275    285.8
2086.0     0.282    287.8
2087.0     0.289    289.7
2088.0     0.295    291.5
2089.0     0.300    293.3
2090.0     0.305    295.0
2091.0     0.310    296.6
2092.0     0.313    298.2
2093.0     0.316    299.8
2094.0     0.319    301.3






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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