Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:01:51

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:	1944.0	Year
End-Year:	2106.0	Year
Epoch:	2025.0	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' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for A1590

WDS 6th Orbit including measures of A1590

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)

Ephemeris of A1590

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     1.447    325.2
-------------------------
1944.0     0.845     11.4
1945.0     0.864     10.2
1946.0     0.883      9.0
1947.0     0.902      7.9
1948.0     0.920      6.8
1949.0     0.938      5.7
1950.0     0.955      4.7
1951.0     0.972      3.8
1952.0     0.989      2.8
1953.0     1.006      1.9
1954.0     1.022      1.1
1955.0     1.038      0.2
1956.0     1.054    359.4
1957.0     1.069    358.6
1958.0     1.084    357.8
1959.0     1.099    357.1
1960.0     1.113    356.4
1961.0     1.128    355.7
1962.0     1.141    355.0
1963.0     1.155    354.3
1964.0     1.168    353.6
1965.0     1.181    353.0
1966.0     1.194    352.3
1967.0     1.206    351.7
1968.0     1.219    351.1
1969.0     1.230    350.5
1970.0     1.242    349.9
1971.0     1.253    349.3
1972.0     1.264    348.8
1973.0     1.275    348.2
1974.0     1.286    347.7
1975.0     1.296    347.1
1976.0     1.306    346.6
1977.0     1.315    346.1
1978.0     1.325    345.6
1979.0     1.334    345.1
1980.0     1.343    344.6
1981.0     1.351    344.1
1982.0     1.359    343.6
1983.0     1.367    343.1
1984.0     1.375    342.6
1985.0     1.383    342.2
1986.0     1.390    341.7
1987.0     1.397    341.2
1988.0     1.403    340.8
1989.0     1.410    340.3
1990.0     1.416    339.9
1991.0     1.422    339.4
1992.0     1.427    339.0
1993.0     1.432    338.6
1994.0     1.437    338.1
1995.0     1.442    337.7
1996.0     1.447    337.3
1997.0     1.451    336.8
1998.0     1.455    336.4
1999.0     1.458    336.0
2000.0     1.462    335.6
2001.0     1.465    335.1
2002.0     1.467    334.7
2003.0     1.470    334.3
2004.0     1.472    333.9
2005.0     1.474    333.5
2006.0     1.476    333.1
2007.0     1.477    332.7
2008.0     1.478    332.3
2009.0     1.479    331.8
2010.0     1.479    331.4
2011.0     1.479    331.0
2012.0     1.479    330.6
2013.0     1.478    330.2
2014.0     1.478    329.8
2015.0     1.476    329.4
2016.0     1.475    329.0
2017.0     1.473    328.6
2018.0     1.471    328.2
2019.0     1.469    327.7
2020.0     1.466    327.3
2021.0     1.463    326.9
2022.0     1.459    326.5
2023.0     1.456    326.1
2024.0     1.452    325.6
2025.0     1.447    325.2
2026.0     1.442    324.8
2027.0     1.437    324.4
2028.0     1.431    323.9
2029.0     1.426    323.5
2030.0     1.419    323.0
2031.0     1.412    322.6
2032.0     1.405    322.1
2033.0     1.398    321.7
2034.0     1.390    321.2
2035.0     1.381    320.8
2036.0     1.373    320.3
2037.0     1.363    319.8
2038.0     1.354    319.3
2039.0     1.344    318.8
2040.0     1.333    318.3
2041.0     1.322    317.8
2042.0     1.310    317.3
2043.0     1.298    316.8
2044.0     1.286    316.2
2045.0     1.272    315.7
2046.0     1.259    315.1
2047.0     1.244    314.6
2048.0     1.229    314.0
2049.0     1.214    313.4
2050.0     1.198    312.8
2051.0     1.181    312.1
2052.0     1.164    311.5
2053.0     1.145    310.8
2054.0     1.127    310.1
2055.0     1.107    309.4
2056.0     1.086    308.7
2057.0     1.065    307.9
2058.0     1.043    307.1
2059.0     1.020    306.2
2060.0     0.996    305.4
2061.0     0.971    304.4
2062.0     0.944    303.5
2063.0     0.917    302.4
2064.0     0.888    301.3
2065.0     0.858    300.1
2066.0     0.827    298.9
2067.0     0.794    297.5
2068.0     0.759    296.0
2069.0     0.723    294.4
2070.0     0.684    292.6
2071.0     0.643    290.6
2072.0     0.600    288.3
2073.0     0.554    285.6
2074.0     0.505    282.4
2075.0     0.452    278.4
2076.0     0.395    273.4
2077.0     0.334    266.7
2078.0     0.269    256.7
2079.0     0.203    240.3
2080.0     0.151    210.4
2081.0     0.143    166.2
2082.0     0.182    130.9
2083.0     0.228    109.4
2084.0     0.269     94.9
2085.0     0.305     84.0
2086.0     0.337     75.3
2087.0     0.366     68.1
2088.0     0.395     61.9
2089.0     0.422     56.5
2090.0     0.448     51.8
2091.0     0.474     47.6
2092.0     0.499     43.8
2093.0     0.524     40.4
2094.0     0.549     37.2
2095.0     0.573     34.4
2096.0     0.597     31.8
2097.0     0.620     29.4
2098.0     0.643     27.1
2099.0     0.665     25.0
2100.0     0.688     23.1
2101.0     0.709     21.2
2102.0     0.731     19.5
2103.0     0.752     17.9
2104.0     0.773     16.3
2105.0     0.793     14.9

Disclaimer

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.