Double Star Calculator - Orbit

Orbital Elements for FIN373
WDS: FIN373 WDS ID/Discoverer
P: 160.000 Orbital period (years)
a: 0.14 Semi-major axis (arcseconds)
i: 104.2 Inclination (degrees)
Ω: 288.2 Longitude of ascending node (degrees)
T: 1998.200 Epoch of periastron passage (year)
e: 0.203 Eccentricity
ω: 55.3 Longitude of periastron (degrees)
Start-Year: 1945.0 Year
End-Year: 2105.0 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for FIN373
Position: 172205.87-700723.5 Epoch-2000 right ascension and declination
WDS-ID: 17221-7007 WDS designation
Discoverer Code: FIN373 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 156190 HD catalog number
Hipparcos number: 84979 Hipparcos catalog number
V1: 5.90 Magnitude of the primary
V2: 6.46 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2017 Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Tok2018b Reference

Double Star Orbit for FIN373



WDS 6th Orbit including measures of FIN373

-- 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 FIN373
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.106   119.12
--------------------------
1945.00    0.044   348.59
1946.00    0.046   343.39
1947.00    0.049   338.68
1948.00    0.051   334.44
1949.00    0.054   330.64
1950.00    0.057   327.23
1951.00    0.060   324.17
1952.00    0.064   321.41
1953.00    0.067   318.93
1954.00    0.070   316.68
1955.00    0.074   314.63
1956.00    0.077   312.76
1957.00    0.080   311.04
1958.00    0.083   309.46
1959.00    0.087   307.99
1960.00    0.090   306.63
1961.00    0.093   305.36
1962.00    0.096   304.17
1963.00    0.099   303.05
1964.00    0.101   301.99
1965.00    0.104   300.99
1966.00    0.106   300.03
1967.00    0.109   299.12
1968.00    0.111   298.24
1969.00    0.113   297.39
1970.00    0.115   296.58
1971.00    0.116   295.79
1972.00    0.118   295.01
1973.00    0.119   294.26
1974.00    0.120   293.52
1975.00    0.121   292.79
1976.00    0.122   292.07
1977.00    0.122   291.36
1978.00    0.122   290.65
1979.00    0.122   289.93
1980.00    0.121   289.22
1981.00    0.121   288.49
1982.00    0.120   287.76
1983.00    0.118   287.01
1984.00    0.117   286.25
1985.00    0.115   285.46
1986.00    0.113   284.65
1987.00    0.111   283.80
1988.00    0.108   282.92
1989.00    0.105   281.99
1990.00    0.102   281.00
1991.00    0.099   279.95
1992.00    0.095   278.82
1993.00    0.091   277.59
1994.00    0.087   276.25
1995.00    0.082   274.77
1996.00    0.078   273.12
1997.00    0.073   271.27
1998.00    0.068   269.15
1999.00    0.063   266.71
2000.00    0.058   263.85
2001.00    0.053   260.46
2002.00    0.048   256.37
2003.00    0.044   251.36
2004.00    0.039   245.16
2005.00    0.035   237.45
2006.00    0.032   227.93
2007.00    0.029   216.53
2008.00    0.028   203.69
2009.00    0.029   190.46
2010.00    0.030   178.09
2011.00    0.033   167.42
2012.00    0.037   158.65
2013.00    0.041   151.59
2014.00    0.046   145.92
2015.00    0.051   141.32
2016.00    0.056   137.56
2017.00    0.061   134.42
2018.00    0.066   131.78
2019.00    0.071   129.51
2020.00    0.076   127.55
2021.00    0.081   125.84
2022.00    0.086   124.32
2023.00    0.091   122.96
2024.00    0.095   121.73
2025.00    0.100   120.62
2026.00    0.104   119.60
2027.00    0.108   118.66
2028.00    0.112   117.78
2029.00    0.116   116.97
2030.00    0.120   116.21
2031.00    0.123   115.49
2032.00    0.126   114.81
2033.00    0.129   114.16
2034.00    0.132   113.54
2035.00    0.135   112.95
2036.00    0.138   112.38
2037.00    0.140   111.83
2038.00    0.142   111.30
2039.00    0.144   110.78
2040.00    0.146   110.28
2041.00    0.148   109.79
2042.00    0.149   109.31
2043.00    0.150   108.84
2044.00    0.151   108.37
2045.00    0.152   107.91
2046.00    0.153   107.46
2047.00    0.154   107.01
2048.00    0.154   106.56
2049.00    0.154   106.11
2050.00    0.154   105.67
2051.00    0.154   105.22
2052.00    0.154   104.78
2053.00    0.154   104.33
2054.00    0.153   103.88
2055.00    0.152   103.43
2056.00    0.152   102.97
2057.00    0.151   102.50
2058.00    0.149   102.03
2059.00    0.148   101.55
2060.00    0.147   101.07
2061.00    0.145   100.57
2062.00    0.144   100.06
2063.00    0.142    99.54
2064.00    0.140    99.01
2065.00    0.138    98.46
2066.00    0.136    97.89
2067.00    0.133    97.30
2068.00    0.131    96.70
2069.00    0.129    96.07
2070.00    0.126    95.42
2071.00    0.123    94.74
2072.00    0.121    94.02
2073.00    0.118    93.28
2074.00    0.115    92.49
2075.00    0.112    91.67
2076.00    0.109    90.80
2077.00    0.106    89.88
2078.00    0.102    88.90
2079.00    0.099    87.85
2080.00    0.096    86.74
2081.00    0.092    85.54
2082.00    0.089    84.25
2083.00    0.086    82.86
2084.00    0.082    81.35
2085.00    0.079    79.71
2086.00    0.075    77.91
2087.00    0.072    75.94
2088.00    0.068    73.78
2089.00    0.065    71.38
2090.00    0.062    68.72
2091.00    0.058    65.77
2092.00    0.055    62.47
2093.00    0.052    58.79
2094.00    0.049    54.68
2095.00    0.047    50.11
2096.00    0.045    45.04
2097.00    0.043    39.49
2098.00    0.041    33.47
2099.00    0.040    27.07
2100.00    0.040    20.39
2101.00    0.040    13.61
2102.00    0.040     6.90
2103.00    0.041     0.41
2104.00    0.042   354.28



 

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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 17:37:52


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