Double Star Calculator - Orbit

Orbital Elements for FIN318AA,AB
WDS: FIN318AA,AB WDS ID/Discoverer
P: 141.000 Orbital period (years)
a: 0.216 Semi-major axis (arcseconds)
i: 122.0 Inclination (degrees)
Ω: 189.9 Longitude of ascending node (degrees)
T: 1973.000 Epoch of periastron passage (year)
e: 0.75 Eccentricity
ω: 272.8 Longitude of periastron (degrees)
Start-Year: 1954.5 Year
End-Year: 2095.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for FIN318AA,AB
Position: 143720.14-460800.3 Epoch-2000 right ascension and declination
WDS-ID: 14373-4608 WDS designation
Discoverer Code: FIN318AA,AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 128266 HD catalog number
Hipparcos number: 71500 Hipparcos catalog number
V1: 6.22 Magnitude of the primary
V2: 6.50 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2013 Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Tok2014a Reference

Double Star Orbit for FIN318AA,AB



WDS 6th Orbit including measures of FIN318AA,AB

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


Legend:
Green plus signs:Visual (micrometric) measures
Violet asterisks:Photographic measures
Blue symbols:Various interferometric techniques
Dot-dash line:Indicates the line of nodes

Ephemeris of FIN318AA,AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.196   112.65
--------------------------
1954.50    0.172    38.59
1955.50    0.169    37.15
1956.50    0.166    35.66
1957.50    0.162    34.10
1958.50    0.158    32.48
1959.50    0.154    30.77
1960.50    0.149    28.95
1961.50    0.144    27.02
1962.50    0.139    24.94
1963.50    0.133    22.68
1964.50    0.126    20.17
1965.50    0.118    17.36
1966.50    0.109    14.12
1967.50    0.099    10.26
1968.50    0.087     5.45
1969.50    0.074   359.04
1970.50    0.059   349.52
1971.50    0.043   332.97
1972.50    0.030   299.36
1973.50    0.032   251.16
1974.50    0.046   221.46
1975.50    0.061   206.54
1976.50    0.076   197.60
1977.50    0.088   191.36
1978.50    0.099   186.56
1979.50    0.108   182.63
1980.50    0.116   179.28
1981.50    0.122   176.33
1982.50    0.128   173.68
1983.50    0.134   171.25
1984.50    0.139   169.00
1985.50    0.143   166.90
1986.50    0.147   164.91
1987.50    0.150   163.03
1988.50    0.154   161.22
1989.50    0.157   159.49
1990.50    0.159   157.82
1991.50    0.162   156.20
1992.50    0.164   154.63
1993.50    0.166   153.11
1994.50    0.168   151.62
1995.50    0.170   150.16
1996.50    0.172   148.74
1997.50    0.174   147.34
1998.50    0.175   145.96
1999.50    0.176   144.61
2000.50    0.178   143.28
2001.50    0.179   141.97
2002.50    0.180   140.67
2003.50    0.181   139.39
2004.50    0.182   138.13
2005.50    0.183   136.88
2006.50    0.184   135.64
2007.50    0.185   134.41
2008.50    0.186   133.20
2009.50    0.187   131.99
2010.50    0.187   130.80
2011.50    0.188   129.61
2012.50    0.189   128.44
2013.50    0.189   127.27
2014.50    0.190   126.11
2015.50    0.190   124.95
2016.50    0.191   123.80
2017.50    0.192   122.66
2018.50    0.192   121.53
2019.50    0.193   120.40
2020.50    0.193   119.28
2021.50    0.194   118.16
2022.50    0.194   117.05
2023.50    0.194   115.94
2024.50    0.195   114.84
2025.50    0.195   113.74
2026.50    0.196   112.65
2027.50    0.196   111.56
2028.50    0.196   110.47
2029.50    0.197   109.39
2030.50    0.197   108.32
2031.50    0.197   107.24
2032.50    0.198   106.18
2033.50    0.198   105.11
2034.50    0.198   104.05
2035.50    0.199   102.99
2036.50    0.199   101.93
2037.50    0.199   100.88
2038.50    0.200    99.83
2039.50    0.200    98.78
2040.50    0.200    97.74
2041.50    0.200    96.70
2042.50    0.201    95.66
2043.50    0.201    94.63
2044.50    0.201    93.59
2045.50    0.201    92.56
2046.50    0.202    91.53
2047.50    0.202    90.51
2048.50    0.202    89.48
2049.50    0.202    88.46
2050.50    0.202    87.44
2051.50    0.203    86.42
2052.50    0.203    85.41
2053.50    0.203    84.39
2054.50    0.203    83.37
2055.50    0.203    82.36
2056.50    0.203    81.35
2057.50    0.203    80.34
2058.50    0.203    79.33
2059.50    0.203    78.32
2060.50    0.203    77.30
2061.50    0.203    76.29
2062.50    0.203    75.28
2063.50    0.203    74.27
2064.50    0.203    73.26
2065.50    0.203    72.25
2066.50    0.203    71.23
2067.50    0.203    70.22
2068.50    0.202    69.20
2069.50    0.202    68.18
2070.50    0.202    67.16
2071.50    0.202    66.13
2072.50    0.201    65.10
2073.50    0.201    64.07
2074.50    0.200    63.03
2075.50    0.200    61.99
2076.50    0.199    60.94
2077.50    0.199    59.88
2078.50    0.198    58.82
2079.50    0.197    57.75
2080.50    0.196    56.68
2081.50    0.196    55.59
2082.50    0.195    54.49
2083.50    0.194    53.39
2084.50    0.192    52.26
2085.50    0.191    51.13
2086.50    0.190    49.98
2087.50    0.188    48.81
2088.50    0.187    47.63
2089.50    0.185    46.42
2090.50    0.183    45.19
2091.50    0.181    43.94
2092.50    0.179    42.65
2093.50    0.177    41.34
2094.50    0.174    39.99






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This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. Unless otherwise noted, all output generated by the Double Star Calculator including orbit diagrams, ephemerides, and analytical reports is licensed under CC BY 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.


Report Information
Double Star Calculator: Version 1.2 ($Rev: 2397 $)
Report created: 2026-06-25 17:07:05



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