Double Star Calculator - Orbit

Orbital Elements for DAW132AB
WDS: DAW132AB WDS ID/Discoverer
P: 170.200 Orbital period (years)
a: 1.293 Semi-major axis (arcseconds)
i: 120.0 Inclination (degrees)
Ω: 116.9 Longitude of ascending node (degrees)
T: 1981.180 Epoch of periastron passage (year)
e: 0.933 Eccentricity
ω: 166.6 Longitude of periastron (degrees)
Start-Year: 1939.9 Year
End-Year: 2110.1 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for DAW132AB
Position: 110622.94-354454.4 Epoch-2000 right ascension and declination
WDS-ID: 11064-3545 WDS designation
Discoverer Code: DAW132AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 54288 Hipparcos catalog number
V1: 9.97 Magnitude of the primary
V2: 11.50 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2024 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: Tok2024b Reference

Double Star Orbit for DAW132AB



WDS 6th Orbit including measures of DAW132AB

-- 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 DAW132AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    2.014   128.54
--------------------------
1939.90    2.048   118.52
1940.90    2.027   118.36
1941.90    2.004   118.21
1942.90    1.981   118.05
1943.90    1.957   117.88
1944.90    1.933   117.71
1945.90    1.907   117.54
1946.90    1.881   117.36
1947.90    1.854   117.18
1948.90    1.826   116.99
1949.90    1.797   116.80
1950.90    1.768   116.60
1951.90    1.737   116.39
1952.90    1.706   116.18
1953.90    1.674   115.95
1954.90    1.640   115.72
1955.90    1.606   115.48
1956.90    1.570   115.23
1957.90    1.533   114.96
1958.90    1.495   114.69
1959.90    1.456   114.39
1960.90    1.415   114.09
1961.90    1.373   113.76
1962.90    1.330   113.41
1963.90    1.284   113.04
1964.90    1.238   112.64
1965.90    1.189   112.21
1966.90    1.138   111.74
1967.90    1.086   111.22
1968.90    1.031   110.65
1969.90    0.973   110.02
1970.90    0.913   109.30
1971.90    0.849   108.48
1972.90    0.783   107.53
1973.90    0.712   106.38
1974.90    0.636   104.98
1975.90    0.554   103.18
1976.90    0.466   100.72
1977.90    0.369    97.04
1978.90    0.261    90.48
1979.90    0.139    73.07
1980.90    0.069   334.01
1981.90    0.088   245.06
1982.90    0.140   186.87
1983.90    0.226   166.68
1984.90    0.311   157.63
1985.90    0.391   152.40
1986.90    0.467   148.92
1987.90    0.538   146.39
1988.90    0.606   144.44
1989.90    0.670   142.87
1990.90    0.732   141.58
1991.90    0.791   140.48
1992.90    0.847   139.53
1993.90    0.902   138.70
1994.90    0.954   137.96
1995.90    1.005   137.29
1996.90    1.054   136.69
1997.90    1.101   136.15
1998.90    1.147   135.64
1999.90    1.191   135.18
2000.90    1.234   134.74
2001.90    1.276   134.34
2002.90    1.317   133.96
2003.90    1.356   133.60
2004.90    1.394   133.27
2005.90    1.432   132.95
2006.90    1.468   132.65
2007.90    1.503   132.36
2008.90    1.538   132.08
2009.90    1.571   131.82
2010.90    1.604   131.57
2011.90    1.635   131.32
2012.90    1.666   131.09
2013.90    1.696   130.87
2014.90    1.726   130.65
2015.90    1.754   130.44
2016.90    1.782   130.24
2017.90    1.809   130.04
2018.90    1.835   129.85
2019.90    1.861   129.66
2020.90    1.886   129.48
2021.90    1.910   129.30
2022.90    1.934   129.13
2023.90    1.957   128.96
2024.90    1.980   128.80
2025.90    2.002   128.64
2026.90    2.023   128.48
2027.90    2.043   128.33
2028.90    2.064   128.18
2029.90    2.083   128.03
2030.90    2.102   127.88
2031.90    2.120   127.74
2032.90    2.138   127.60
2033.90    2.155   127.46
2034.90    2.172   127.32
2035.90    2.188   127.19
2036.90    2.204   127.06
2037.90    2.219   126.93
2038.90    2.234   126.80
2039.90    2.248   126.67
2040.90    2.262   126.55
2041.90    2.275   126.42
2042.90    2.287   126.30
2043.90    2.300   126.18
2044.90    2.311   126.06
2045.90    2.322   125.94
2046.90    2.333   125.83
2047.90    2.343   125.71
2048.90    2.353   125.59
2049.90    2.362   125.48
2050.90    2.371   125.37
2051.90    2.379   125.25
2052.90    2.387   125.14
2053.90    2.395   125.03
2054.90    2.402   124.92
2055.90    2.408   124.81
2056.90    2.414   124.70
2057.90    2.420   124.59
2058.90    2.425   124.48
2059.90    2.429   124.37
2060.90    2.434   124.27
2061.90    2.437   124.16
2062.90    2.441   124.05
2063.90    2.444   123.95
2064.90    2.446   123.84
2065.90    2.448   123.73
2066.90    2.449   123.63
2067.90    2.450   123.52
2068.90    2.451   123.42
2069.90    2.451   123.31
2070.90    2.451   123.20
2071.90    2.450   123.10
2072.90    2.449   122.99
2073.90    2.447   122.89
2074.90    2.445   122.78
2075.90    2.442   122.67
2076.90    2.439   122.57
2077.90    2.436   122.46
2078.90    2.431   122.35
2079.90    2.427   122.24
2080.90    2.422   122.13
2081.90    2.417   122.03
2082.90    2.411   121.92
2083.90    2.404   121.81
2084.90    2.397   121.70
2085.90    2.390   121.59
2086.90    2.382   121.47
2087.90    2.374   121.36
2088.90    2.365   121.25
2089.90    2.355   121.13
2090.90    2.346   121.02
2091.90    2.335   120.90
2092.90    2.324   120.79
2093.90    2.313   120.67
2094.90    2.301   120.55
2095.90    2.288   120.43
2096.90    2.275   120.30
2097.90    2.262   120.18
2098.90    2.248   120.06
2099.90    2.233   119.93
2100.90    2.218   119.80
2101.90    2.202   119.67
2102.90    2.185   119.54
2103.90    2.168   119.40
2104.90    2.150   119.27
2105.90    2.132   119.13
2106.90    2.113   118.99
2107.90    2.094   118.84
2108.90    2.073   118.70
2109.90    2.053   118.55






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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.


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Double Star Calculator: Version 1.2 ($Rev: 2397 $)
Report created: 2026-06-25 16:33:31



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