Double Star Calculator - Orbit

Orbital Elements for A632AB
WDS: A632AB WDS ID/Discoverer
P: 107.300 Orbital period (years)
a: 1.136 Semi-major axis (arcseconds)
i: 103.9 Inclination (degrees)
Ω: 21.5 Longitude of ascending node (degrees)
T: 2038.860 Epoch of periastron passage (year)
e: 0.844 Eccentricity
ω: 69.6 Longitude of periastron (degrees)
Start-Year: 1971.35 Year
End-Year: 2078.65 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A632AB
Position: 225200.55+574300.6 Epoch-2000 right ascension and declination
WDS-ID: 22520+5743 WDS designation
Discoverer Code: A632AB Discover designation and components
ADS number: 16326 Aitken Double Star catalog
HD number: 216448 HD catalog number
Hipparcos number: 112915 Hipparcos catalog number
V1: 8.59 Magnitude of the primary
V2: 9.32 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2022 Date of last observation
Orbit grade: 2 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Sca2022d Reference

Double Star Orbit for A632AB



WDS 6th Orbit including measures of A632AB

-- 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 A632AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.357    69.69
--------------------------
1971.35    1.030   177.15
1972.35    1.021   176.62
1973.35    1.012   176.08
1974.35    1.002   175.53
1975.35    0.992   174.97
1976.35    0.982   174.40
1977.35    0.971   173.81
1978.35    0.959   173.21
1979.35    0.947   172.60
1980.35    0.935   171.97
1981.35    0.922   171.32
1982.35    0.909   170.66
1983.35    0.895   169.97
1984.35    0.881   169.27
1985.35    0.867   168.54
1986.35    0.853   167.78
1987.35    0.838   167.00
1988.35    0.823   166.19
1989.35    0.807   165.35
1990.35    0.791   164.48
1991.35    0.775   163.57
1992.35    0.759   162.62
1993.35    0.743   161.63
1994.35    0.726   160.60
1995.35    0.709   159.52
1996.35    0.693   158.38
1997.35    0.675   157.19
1998.35    0.658   155.93
1999.35    0.641   154.61
2000.35    0.624   153.22
2001.35    0.606   151.74
2002.35    0.589   150.18
2003.35    0.572   148.53
2004.35    0.555   146.77
2005.35    0.538   144.90
2006.35    0.521   142.91
2007.35    0.505   140.79
2008.35    0.489   138.53
2009.35    0.473   136.11
2010.35    0.458   133.53
2011.35    0.443   130.78
2012.35    0.429   127.84
2013.35    0.416   124.72
2014.35    0.404   121.39
2015.35    0.392   117.86
2016.35    0.382   114.14
2017.35    0.373   110.22
2018.35    0.365   106.12
2019.35    0.359   101.87
2020.35    0.354    97.48
2021.35    0.351    92.99
2022.35    0.349    88.44
2023.35    0.349    83.86
2024.35    0.350    79.30
2025.35    0.353    74.78
2026.35    0.356    70.34
2027.35    0.361    66.01
2028.35    0.366    61.78
2029.35    0.371    57.68
2030.35    0.376    53.69
2031.35    0.380    49.79
2032.35    0.383    45.97
2033.35    0.382    42.16
2034.35    0.377    38.30
2035.35    0.363    34.24
2036.35    0.335    29.69
2037.35    0.279    23.84
2038.35    0.162    12.26
2039.35    0.064   245.75
2040.35    0.241   209.95
2041.35    0.379   203.97
2042.35    0.484   200.96
2043.35    0.568   198.94
2044.35    0.638   197.40
2045.35    0.697   196.15
2046.35    0.748   195.08
2047.35    0.792   194.14
2048.35    0.831   193.30
2049.35    0.865   192.52
2050.35    0.895   191.80
2051.35    0.922   191.13
2052.35    0.946   190.49
2053.35    0.967   189.88
2054.35    0.986   189.29
2055.35    1.002   188.73
2056.35    1.017   188.18
2057.35    1.030   187.65
2058.35    1.041   187.13
2059.35    1.050   186.62
2060.35    1.058   186.12
2061.35    1.065   185.62
2062.35    1.071   185.13
2063.35    1.075   184.65
2064.35    1.078   184.17
2065.35    1.080   183.69
2066.35    1.081   183.21
2067.35    1.082   182.73
2068.35    1.081   182.26
2069.35    1.079   181.78
2070.35    1.077   181.30
2071.35    1.074   180.82
2072.35    1.070   180.33
2073.35    1.065   179.84
2074.35    1.060   179.35
2075.35    1.054   178.85
2076.35    1.047   178.34
2077.35    1.040   177.83
2078.35    1.032   177.31






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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 18:44:22



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