Double Star Calculator - Orbit

Orbital Elements for B2036AB
WDS: B2036AB WDS ID/Discoverer
P: 167.900 Orbital period (years)
a: 0.3936 Semi-major axis (arcseconds)
i: 92.2 Inclination (degrees)
Ω: 1.1 Longitude of ascending node (degrees)
T: 1982.670 Epoch of periastron passage (year)
e: 0.338 Eccentricity
ω: 243.7 Longitude of periastron (degrees)
Start-Year: 1941.05 Year
End-Year: 2108.95 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for B2036AB
Position: 153117.22-334911.2 Epoch-2000 right ascension and declination
WDS-ID: 15313-3349 WDS designation
Discoverer Code: B2036AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 138138 HD catalog number
Hipparcos number: 76001 Hipparcos catalog number
V1: 7.7 Magnitude of the primary
V2: 7.9 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: Tok2024e Reference

Double Star Orbit for B2036AB



WDS 6th Orbit including measures of B2036AB

-- 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 B2036AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.432     0.60
--------------------------
1941.05    0.205   185.21
1942.05    0.214   184.94
1943.05    0.223   184.69
1944.05    0.231   184.45
1945.05    0.239   184.24
1946.05    0.247   184.03
1947.05    0.255   183.84
1948.05    0.262   183.66
1949.05    0.269   183.49
1950.05    0.275   183.33
1951.05    0.282   183.17
1952.05    0.287   183.03
1953.05    0.293   182.88
1954.05    0.298   182.75
1955.05    0.302   182.61
1956.05    0.306   182.48
1957.05    0.309   182.36
1958.05    0.312   182.23
1959.05    0.314   182.11
1960.05    0.315   181.99
1961.05    0.316   181.87
1962.05    0.316   181.75
1963.05    0.315   181.63
1964.05    0.314   181.51
1965.05    0.312   181.38
1966.05    0.308   181.26
1967.05    0.304   181.13
1968.05    0.299   181.00
1969.05    0.293   180.86
1970.05    0.286   180.72
1971.05    0.279   180.57
1972.05    0.270   180.41
1973.05    0.260   180.24
1974.05    0.249   180.05
1975.05    0.237   179.85
1976.05    0.224   179.62
1977.05    0.210   179.37
1978.05    0.195   179.07
1979.05    0.179   178.73
1980.05    0.163   178.32
1981.05    0.145   177.81
1982.05    0.127   177.16
1983.05    0.109   176.30
1984.05    0.090   175.06
1985.05    0.070   173.15
1986.05    0.050   169.76
1987.05    0.031   162.03
1988.05    0.014   131.99
1989.05    0.015    42.91
1990.05    0.034    19.10
1991.05    0.053    12.35
1992.05    0.073     9.24
1993.05    0.092     7.46
1994.05    0.112     6.29
1995.05    0.130     5.47
1996.05    0.149     4.85
1997.05    0.167     4.37
1998.05    0.184     3.98
1999.05    0.201     3.65
2000.05    0.217     3.38
2001.05    0.233     3.14
2002.05    0.248     2.94
2003.05    0.263     2.75
2004.05    0.276     2.59
2005.05    0.290     2.44
2006.05    0.302     2.30
2007.05    0.314     2.17
2008.05    0.325     2.05
2009.05    0.336     1.95
2010.05    0.346     1.84
2011.05    0.355     1.74
2012.05    0.364     1.65
2013.05    0.372     1.56
2014.05    0.380     1.48
2015.05    0.387     1.40
2016.05    0.394     1.32
2017.05    0.400     1.24
2018.05    0.405     1.17
2019.05    0.410     1.10
2020.05    0.415     1.03
2021.05    0.419     0.96
2022.05    0.422     0.89
2023.05    0.425     0.82
2024.05    0.428     0.76
2025.05    0.430     0.69
2026.05    0.432     0.63
2027.05    0.433     0.56
2028.05    0.434     0.50
2029.05    0.434     0.43
2030.05    0.434     0.37
2031.05    0.434     0.31
2032.05    0.433     0.24
2033.05    0.432     0.18
2034.05    0.430     0.11
2035.05    0.428     0.05
2036.05    0.426   359.98
2037.05    0.424   359.92
2038.05    0.421   359.85
2039.05    0.418   359.78
2040.05    0.414   359.71
2041.05    0.411   359.64
2042.05    0.407   359.57
2043.05    0.402   359.50
2044.05    0.398   359.42
2045.05    0.393   359.34
2046.05    0.388   359.27
2047.05    0.382   359.18
2048.05    0.377   359.10
2049.05    0.371   359.02
2050.05    0.365   358.93
2051.05    0.358   358.83
2052.05    0.352   358.74
2053.05    0.345   358.64
2054.05    0.338   358.54
2055.05    0.331   358.43
2056.05    0.323   358.32
2057.05    0.316   358.20
2058.05    0.308   358.08
2059.05    0.300   357.95
2060.05    0.292   357.81
2061.05    0.283   357.66
2062.05    0.275   357.51
2063.05    0.266   357.35
2064.05    0.257   357.17
2065.05    0.248   356.98
2066.05    0.239   356.78
2067.05    0.230   356.56
2068.05    0.221   356.33
2069.05    0.211   356.07
2070.05    0.202   355.79
2071.05    0.192   355.48
2072.05    0.182   355.13
2073.05    0.172   354.75
2074.05    0.162   354.32
2075.05    0.152   353.83
2076.05    0.142   353.28
2077.05    0.132   352.63
2078.05    0.121   351.88
2079.05    0.111   350.99
2080.05    0.100   349.91
2081.05    0.090   348.58
2082.05    0.080   346.90
2083.05    0.069   344.72
2084.05    0.059   341.78
2085.05    0.049   337.61
2086.05    0.039   331.30
2087.05    0.030   321.04
2088.05    0.023   303.26
2089.05    0.019   274.74
2090.05    0.021   244.23
2091.05    0.028   223.82
2092.05    0.037   212.07
2093.05    0.046   204.99
2094.05    0.056   200.38
2095.05    0.067   197.18
2096.05    0.077   194.84
2097.05    0.087   193.05
2098.05    0.098   191.64
2099.05    0.108   190.51
2100.05    0.118   189.57
2101.05    0.129   188.78
2102.05    0.139   188.10
2103.05    0.149   187.52
2104.05    0.159   187.01
2105.05    0.168   186.56
2106.05    0.178   186.16
2107.05    0.187   185.80
2108.05    0.197   185.48






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 17:16:13



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