Double Star Calculator - Orbit

Orbital Elements for RST2593

WDS:	RST2593	WDS ID/Discoverer
P:	132.380	Orbital period (years)
a:	0.842	Semi-major axis (arcseconds)
i:	156.8	Inclination (degrees)
Ω:	20.5	Longitude of ascending node (degrees)
T:	1915.700	Epoch of periastron passage (year)
e:	0.361	Eccentricity
ω:	181.6	Longitude of periastron (degrees)
Start-Year:	1958.81	Year
End-Year:	2091.19	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for RST2593
Position:	085619.84-370721.0	Epoch-2000 right ascension and declination
WDS-ID:	08563-3707	WDS designation
Discoverer Code:	RST2593	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	76668	HD catalog number
Hipparcos number:	43880	Hipparcos catalog number
V1:	6.94	Magnitude of the primary
V2:	10.79	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2023	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:	Tok2023a	Reference

Double Star Orbit for RST2593

WDS 6th Orbit including measures of RST2593

-- 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 RST2593

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.722   300.19
--------------------------
1958.81    1.024    50.34
1959.81    1.035    48.78
1960.81    1.044    47.25
1961.81    1.054    45.75
1962.81    1.063    44.27
1963.81    1.071    42.82
1964.81    1.079    41.39
1965.81    1.087    39.98
1966.81    1.094    38.59
1967.81    1.101    37.22
1968.81    1.107    35.87
1969.81    1.113    34.53
1970.81    1.118    33.20
1971.81    1.123    31.88
1972.81    1.128    30.58
1973.81    1.131    29.28
1974.81    1.135    28.00
1975.81    1.138    26.72
1976.81    1.140    25.44
1977.81    1.142    24.17
1978.81    1.144    22.91
1979.81    1.145    21.65
1980.81    1.146    20.39
1981.81    1.146    19.13
1982.81    1.146    17.87
1983.81    1.145    16.61
1984.81    1.144    15.35
1985.81    1.142    14.08
1986.81    1.140    12.81
1987.81    1.137    11.54
1988.81    1.134    10.26
1989.81    1.130     8.97
1990.81    1.126     7.67
1991.81    1.122     6.36
1992.81    1.117     5.04
1993.81    1.111     3.71
1994.81    1.105     2.36
1995.81    1.099     1.00
1996.81    1.092   359.63
1997.81    1.085   358.23
1998.81    1.077   356.82
1999.81    1.069   355.38
2000.81    1.060   353.92
2001.81    1.051   352.44
2002.81    1.042   350.93
2003.81    1.032   349.40
2004.81    1.022   347.83
2005.81    1.011   346.23
2006.81    1.000   344.59
2007.81    0.988   342.92
2008.81    0.976   341.21
2009.81    0.964   339.45
2010.81    0.952   337.65
2011.81    0.939   335.80
2012.81    0.925   333.90
2013.81    0.912   331.94
2014.81    0.898   329.92
2015.81    0.883   327.84
2016.81    0.869   325.68
2017.81    0.854   323.46
2018.81    0.839   321.15
2019.81    0.824   318.77
2020.81    0.809   316.29
2021.81    0.794   313.72
2022.81    0.778   311.04
2023.81    0.763   308.26
2024.81    0.748   305.36
2025.81    0.733   302.35
2026.81    0.717   299.20
2027.81    0.703   295.92
2028.81    0.688   292.51
2029.81    0.674   288.94
2030.81    0.660   285.22
2031.81    0.647   281.35
2032.81    0.634   277.32
2033.81    0.622   273.12
2034.81    0.610   268.77
2035.81    0.600   264.25
2036.81    0.590   259.58
2037.81    0.581   254.76
2038.81    0.573   249.79
2039.81    0.566   244.68
2040.81    0.559   239.46
2041.81    0.554   234.12
2042.81    0.549   228.69
2043.81    0.546   223.17
2044.81    0.543   217.58
2045.81    0.540   211.95
2046.81    0.539   206.27
2047.81    0.538   200.57
2048.81    0.538   194.86
2049.81    0.539   189.16
2050.81    0.540   183.47
2051.81    0.542   177.83
2052.81    0.545   172.23
2053.81    0.549   166.71
2054.81    0.554   161.27
2055.81    0.559   155.93
2056.81    0.566   150.71
2057.81    0.574   145.62
2058.81    0.582   140.68
2059.81    0.592   135.88
2060.81    0.602   131.25
2061.81    0.614   126.78
2062.81    0.626   122.47
2063.81    0.639   118.34
2064.81    0.652   114.37
2065.81    0.666   110.57
2066.81    0.681   106.92
2067.81    0.695   103.43
2068.81    0.710   100.08
2069.81    0.726    96.88
2070.81    0.741    93.81
2071.81    0.757    90.86
2072.81    0.773    88.03
2073.81    0.788    85.32
2074.81    0.804    82.71
2075.81    0.819    80.20
2076.81    0.835    77.79
2077.81    0.850    75.46
2078.81    0.865    73.21
2079.81    0.880    71.04
2080.81    0.894    68.94
2081.81    0.908    66.90
2082.81    0.922    64.93
2083.81    0.936    63.01
2084.81    0.949    61.15
2085.81    0.962    59.34
2086.81    0.974    57.58
2087.81    0.986    55.86
2088.81    0.998    54.18
2089.81    1.009    52.54
2090.81    1.020    50.94

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 16:12:43