Double Star Calculator - Orbit

Orbital Elements for A1590
WDS: A1590 WDS ID/Discoverer
P: 163.617 Orbital period (years)
a: 0.98721 Semi-major axis (arcseconds)
i: 135.86 Inclination (degrees)
Ω: 108.78 Longitude of ascending node (degrees)
T: 1917.631 Epoch of periastron passage (year)
e: 0.81345 Eccentricity
ω: 303.772 Longitude of periastron (degrees)
Start-Year: 1943.19135 Year
End-Year: 2106.80865 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A1590
Position: 110327.91+543133.0 Epoch-2000 right ascension and declination
WDS-ID: 11035+5432 WDS designation
Discoverer Code: A1590 Discover designation and components
ADS number: 8032 Aitken Double Star catalog
HD number: 95690 HD catalog number
Hipparcos number: 54040 Hipparcos catalog number
V1: 8.95 Magnitude of the primary
V2: 9.64 Magnitude of the secondary
Equinox: Equinox
Date: 2015 Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Izm2019 Reference

Double Star Orbit for A1590



WDS 6th Orbit including measures of A1590

-- 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 A1590
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    1.440   324.57
--------------------------
1943.19    0.829    12.41
1944.19    0.849    11.14
1945.19    0.868     9.92
1946.19    0.887     8.76
1947.19    0.905     7.65
1948.19    0.923     6.58
1949.19    0.941     5.55
1950.19    0.959     4.55
1951.19    0.976     3.60
1952.19    0.993     2.67
1953.19    1.009     1.78
1954.19    1.025     0.91
1955.19    1.041     0.07
1956.19    1.057   359.26
1957.19    1.072   358.47
1958.19    1.087   357.70
1959.19    1.102   356.96
1960.19    1.116   356.23
1961.19    1.130   355.52
1962.19    1.144   354.83
1963.19    1.158   354.15
1964.19    1.171   353.49
1965.19    1.184   352.84
1966.19    1.196   352.21
1967.19    1.209   351.59
1968.19    1.221   350.99
1969.19    1.233   350.39
1970.19    1.244   349.81
1971.19    1.255   349.24
1972.19    1.266   348.67
1973.19    1.277   348.12
1974.19    1.287   347.57
1975.19    1.298   347.04
1976.19    1.307   346.51
1977.19    1.317   345.99
1978.19    1.326   345.48
1979.19    1.335   344.97
1980.19    1.344   344.48
1981.19    1.353   343.98
1982.19    1.361   343.50
1983.19    1.369   343.02
1984.19    1.377   342.54
1985.19    1.384   342.07
1986.19    1.391   341.61
1987.19    1.398   341.15
1988.19    1.405   340.69
1989.19    1.411   340.24
1990.19    1.417   339.79
1991.19    1.423   339.35
1992.19    1.428   338.91
1993.19    1.433   338.47
1994.19    1.438   338.04
1995.19    1.443   337.60
1996.19    1.447   337.18
1997.19    1.452   336.75
1998.19    1.455   336.33
1999.19    1.459   335.90
2000.19    1.462   335.49
2001.19    1.465   335.07
2002.19    1.468   334.65
2003.19    1.470   334.24
2004.19    1.472   333.82
2005.19    1.474   333.41
2006.19    1.476   333.00
2007.19    1.477   332.59
2008.19    1.478   332.18
2009.19    1.479   331.77
2010.19    1.479   331.36
2011.19    1.479   330.95
2012.19    1.479   330.54
2013.19    1.478   330.13
2014.19    1.477   329.72
2015.19    1.476   329.31
2016.19    1.475   328.90
2017.19    1.473   328.49
2018.19    1.471   328.08
2019.19    1.468   327.66
2020.19    1.465   327.25
2021.19    1.462   326.83
2022.19    1.459   326.41
2023.19    1.455   325.99
2024.19    1.451   325.56
2025.19    1.446   325.14
2026.19    1.441   324.71
2027.19    1.436   324.27
2028.19    1.430   323.84
2029.19    1.424   323.40
2030.19    1.418   322.96
2031.19    1.411   322.51
2032.19    1.404   322.06
2033.19    1.396   321.60
2034.19    1.388   321.14
2035.19    1.380   320.67
2036.19    1.371   320.20
2037.19    1.362   319.72
2038.19    1.352   319.23
2039.19    1.342   318.74
2040.19    1.331   318.24
2041.19    1.320   317.73
2042.19    1.308   317.21
2043.19    1.296   316.68
2044.19    1.283   316.14
2045.19    1.270   315.59
2046.19    1.256   315.03
2047.19    1.242   314.46
2048.19    1.227   313.87
2049.19    1.211   313.27
2050.19    1.195   312.65
2051.19    1.178   312.01
2052.19    1.160   311.36
2053.19    1.142   310.68
2054.19    1.123   309.99
2055.19    1.103   309.26
2056.19    1.082   308.51
2057.19    1.061   307.73
2058.19    1.039   306.92
2059.19    1.015   306.07
2060.19    0.991   305.18
2061.19    0.966   304.25
2062.19    0.939   303.26
2063.19    0.912   302.22
2064.19    0.883   301.10
2065.19    0.852   299.92
2066.19    0.821   298.64
2067.19    0.787   297.25
2068.19    0.752   295.74
2069.19    0.716   294.08
2070.19    0.677   292.23
2071.19    0.635   290.15
2072.19    0.592   287.77
2073.19    0.545   285.00
2074.19    0.495   281.68
2075.19    0.441   277.59
2076.19    0.384   272.31
2077.19    0.322   265.07
2078.19    0.256   254.23
2079.19    0.192   235.92
2080.19    0.145   202.59
2081.19    0.148   158.09
2082.19    0.191   125.93
2083.19    0.237   106.20
2084.19    0.277    92.59
2085.19    0.311    82.22
2086.19    0.343    73.83
2087.19    0.372    66.81
2088.19    0.400    60.79
2089.19    0.427    55.55
2090.19    0.453    50.92
2091.19    0.479    46.80
2092.19    0.504    43.09
2093.19    0.529    39.73
2094.19    0.553    36.68
2095.19    0.577    33.88
2096.19    0.601    31.30
2097.19    0.624    28.91
2098.19    0.647    26.70
2099.19    0.670    24.63
2100.19    0.692    22.70
2101.19    0.714    20.89
2102.19    0.735    19.18
2103.19    0.756    17.57
2104.19    0.777    16.05
2105.19    0.797    14.60
2106.19    0.817    13.23






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 16:33:03



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