Double Star Calculator - Orbit

Orbital Elements for VOU24AB
WDS: VOU24AB WDS ID/Discoverer
P: 161.400 Orbital period (years)
a: 0.309 Semi-major axis (arcseconds)
i: 143.2 Inclination (degrees)
Ω: 98.0 Longitude of ascending node (degrees)
T: 2013.660 Epoch of periastron passage (year)
e: 0.316 Eccentricity
ω: 250.0 Longitude of periastron (degrees)
Start-Year: 1944.3 Year
End-Year: 2105.7 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for VOU24AB
Position: 211302.51-113305.8 Epoch-2000 right ascension and declination
WDS-ID: 21130-1133 WDS designation
Discoverer Code: VOU24AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 201926 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.7 Magnitude of the primary
V2: 10.2 Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Tok2024c Reference

Double Star Orbit for VOU24AB



WDS 6th Orbit including measures of VOU24AB

-- 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 VOU24AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.204   147.86
--------------------------
1944.30    0.322    15.50
1945.30    0.321    13.93
1946.30    0.320    12.36
1947.30    0.319    10.77
1948.30    0.318     9.17
1949.30    0.316     7.56
1950.30    0.315     5.94
1951.30    0.314     4.31
1952.30    0.313     2.67
1953.30    0.312     1.02
1954.30    0.311   359.35
1955.30    0.310   357.68
1956.30    0.309   355.99
1957.30    0.309   354.30
1958.30    0.308   352.59
1959.30    0.307   350.88
1960.30    0.306   349.15
1961.30    0.305   347.42
1962.30    0.304   345.68
1963.30    0.303   343.93
1964.30    0.303   342.16
1965.30    0.302   340.39
1966.30    0.301   338.61
1967.30    0.300   336.83
1968.30    0.300   335.03
1969.30    0.299   333.22
1970.30    0.298   331.41
1971.30    0.297   329.58
1972.30    0.296   327.74
1973.30    0.296   325.90
1974.30    0.295   324.04
1975.30    0.294   322.17
1976.30    0.293   320.29
1977.30    0.292   318.40
1978.30    0.291   316.49
1979.30    0.290   314.57
1980.30    0.288   312.63
1981.30    0.287   310.67
1982.30    0.286   308.70
1983.30    0.284   306.70
1984.30    0.282   304.69
1985.30    0.281   302.64
1986.30    0.279   300.58
1987.30    0.277   298.48
1988.30    0.275   296.35
1989.30    0.272   294.18
1990.30    0.270   291.98
1991.30    0.267   289.73
1992.30    0.264   287.44
1993.30    0.261   285.09
1994.30    0.258   282.68
1995.30    0.254   280.22
1996.30    0.251   277.68
1997.30    0.247   275.06
1998.30    0.243   272.35
1999.30    0.238   269.55
2000.30    0.234   266.65
2001.30    0.229   263.63
2002.30    0.224   260.48
2003.30    0.219   257.20
2004.30    0.214   253.76
2005.30    0.209   250.16
2006.30    0.204   246.38
2007.30    0.199   242.41
2008.30    0.195   238.24
2009.30    0.190   233.87
2010.30    0.186   229.29
2011.30    0.182   224.50
2012.30    0.178   219.51
2013.30    0.176   214.34
2014.30    0.173   209.02
2015.30    0.172   203.59
2016.30    0.171   198.08
2017.30    0.171   192.55
2018.30    0.172   187.04
2019.30    0.174   181.62
2020.30    0.176   176.31
2021.30    0.179   171.17
2022.30    0.183   166.23
2023.30    0.187   161.49
2024.30    0.192   156.98
2025.30    0.197   152.70
2026.30    0.203   148.64
2027.30    0.208   144.81
2028.30    0.214   141.18
2029.30    0.220   137.75
2030.30    0.226   134.51
2031.30    0.233   131.44
2032.30    0.239   128.52
2033.30    0.245   125.75
2034.30    0.251   123.12
2035.30    0.257   120.61
2036.30    0.263   118.21
2037.30    0.268   115.91
2038.30    0.274   113.70
2039.30    0.279   111.58
2040.30    0.284   109.54
2041.30    0.289   107.57
2042.30    0.294   105.66
2043.30    0.298   103.81
2044.30    0.302   102.02
2045.30    0.307   100.28
2046.30    0.311    98.58
2047.30    0.314    96.92
2048.30    0.318    95.30
2049.30    0.321    93.72
2050.30    0.324    92.16
2051.30    0.327    90.64
2052.30    0.330    89.14
2053.30    0.333    87.67
2054.30    0.335    86.22
2055.30    0.337    84.78
2056.30    0.339    83.37
2057.30    0.341    81.97
2058.30    0.343    80.59
2059.30    0.345    79.23
2060.30    0.346    77.87
2061.30    0.347    76.52
2062.30    0.349    75.19
2063.30    0.350    73.86
2064.30    0.351    72.54
2065.30    0.351    71.23
2066.30    0.352    69.92
2067.30    0.352    68.62
2068.30    0.353    67.32
2069.30    0.353    66.02
2070.30    0.353    64.72
2071.30    0.353    63.43
2072.30    0.353    62.13
2073.30    0.353    60.83
2074.30    0.353    59.54
2075.30    0.353    58.24
2076.30    0.352    56.94
2077.30    0.352    55.63
2078.30    0.352    54.33
2079.30    0.351    53.02
2080.30    0.350    51.70
2081.30    0.350    50.38
2082.30    0.349    49.05
2083.30    0.348    47.72
2084.30    0.347    46.38
2085.30    0.346    45.03
2086.30    0.345    43.68
2087.30    0.344    42.31
2088.30    0.343    40.94
2089.30    0.342    39.56
2090.30    0.341    38.18
2091.30    0.340    36.78
2092.30    0.339    35.37
2093.30    0.337    33.96
2094.30    0.336    32.53
2095.30    0.335    31.09
2096.30    0.334    29.65
2097.30    0.332    28.19
2098.30    0.331    26.72
2099.30    0.330    25.24
2100.30    0.329    23.75
2101.30    0.328    22.25
2102.30    0.326    20.73
2103.30    0.325    19.21
2104.30    0.324    17.67
2105.30    0.323    16.12






Disclaimer
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 18:23:44



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