Double Star Calculator - Orbit

Orbital Elements for RST2720
WDS: RST2720 WDS ID/Discoverer
P: 156.050 Orbital period (years)
a: 0.214 Semi-major axis (arcseconds)
i: 55.4 Inclination (degrees)
Ω: 51.6 Longitude of ascending node (degrees)
T: 2029.460 Epoch of periastron passage (year)
e: 0.0 Eccentricity
ω: 0.0 Longitude of periastron (degrees)
Start-Year: 1946.975 Year
End-Year: 2103.025 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for RST2720
Position: 105931.94-413028.2 Epoch-2000 right ascension and declination
WDS-ID: 10595-4130 WDS designation
Discoverer Code: RST2720 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 10.5 Magnitude of the primary
V2: 10.5 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2022 Date of last observation
Orbit grade: 3 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 RST2720



WDS 6th Orbit including measures of RST2720

-- 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 RST2720
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.213    47.71
--------------------------
1946.97    0.212   225.71
1947.97    0.213   227.05
1948.97    0.213   228.37
1949.97    0.214   229.69
1950.97    0.214   231.00
1951.97    0.214   232.31
1952.97    0.214   233.62
1953.97    0.213   234.94
1954.97    0.213   236.26
1955.97    0.212   237.59
1956.97    0.210   238.94
1957.97    0.209   240.30
1958.97    0.207   241.69
1959.97    0.206   243.09
1960.97    0.204   244.53
1961.97    0.201   245.99
1962.97    0.199   247.49
1963.97    0.196   249.02
1964.97    0.194   250.60
1965.97    0.191   252.23
1966.97    0.187   253.91
1967.97    0.184   255.64
1968.97    0.181   257.44
1969.97    0.177   259.31
1970.97    0.174   261.26
1971.97    0.170   263.28
1972.97    0.167   265.40
1973.97    0.163   267.61
1974.97    0.159   269.92
1975.97    0.155   272.35
1976.97    0.152   274.89
1977.97    0.148   277.56
1978.97    0.145   280.36
1979.97    0.141   283.29
1980.97    0.138   286.37
1981.97    0.135   289.59
1982.97    0.132   292.95
1983.97    0.130   296.44
1984.97    0.127   300.07
1985.97    0.126   303.82
1986.97    0.124   307.68
1987.97    0.123   311.62
1988.97    0.122   315.63
1989.97    0.122   319.68
1990.97    0.122   323.74
1991.97    0.122   327.79
1992.97    0.123   331.79
1993.97    0.124   335.73
1994.97    0.126   339.59
1995.97    0.128   343.33
1996.97    0.130   346.95
1997.97    0.132   350.44
1998.97    0.135   353.79
1999.97    0.138   357.00
2000.97    0.141     0.07
2001.97    0.145     3.00
2002.97    0.148     5.79
2003.97    0.152     8.45
2004.97    0.156    10.99
2005.97    0.159    13.41
2006.97    0.163    15.72
2007.97    0.167    17.92
2008.97    0.170    20.03
2009.97    0.174    22.05
2010.97    0.178    23.99
2011.97    0.181    25.86
2012.97    0.184    27.65
2013.97    0.188    29.39
2014.97    0.191    31.06
2015.97    0.194    32.68
2016.97    0.196    34.26
2017.97    0.199    35.80
2018.97    0.201    37.29
2019.97    0.204    38.75
2020.97    0.206    40.18
2021.97    0.208    41.59
2022.97    0.209    42.97
2023.97    0.210    44.33
2024.97    0.212    45.68
2025.97    0.213    47.01
2026.97    0.213    48.34
2027.97    0.214    49.65
2028.97    0.214    50.96
2029.97    0.214    52.27
2030.97    0.214    53.59
2031.97    0.213    54.90
2032.97    0.213    56.23
2033.97    0.212    57.56
2034.97    0.210    58.91
2035.97    0.209    60.27
2036.97    0.207    61.65
2037.97    0.206    63.06
2038.97    0.204    64.49
2039.97    0.201    65.95
2040.97    0.199    67.45
2041.97    0.196    68.99
2042.97    0.194    70.56
2043.97    0.191    72.19
2044.97    0.188    73.87
2045.97    0.184    75.60
2046.97    0.181    77.40
2047.97    0.178    79.27
2048.97    0.174    81.21
2049.97    0.170    83.23
2050.97    0.167    85.34
2051.97    0.163    87.55
2052.97    0.159    89.86
2053.97    0.156    92.29
2054.97    0.152    94.83
2055.97    0.148    97.49
2056.97    0.145   100.29
2057.97    0.141   103.22
2058.97    0.138   106.29
2059.97    0.135   109.50
2060.97    0.132   112.86
2061.97    0.130   116.36
2062.97    0.128   119.98
2063.97    0.126   123.73
2064.97    0.124   127.58
2065.97    0.123   131.52
2066.97    0.122   135.53
2067.97    0.122   139.58
2068.97    0.122   143.64
2069.97    0.122   147.69
2070.97    0.123   151.70
2071.97    0.124   155.64
2072.97    0.126   159.49
2073.97    0.128   163.24
2074.97    0.130   166.86
2075.97    0.132   170.36
2076.97    0.135   173.71
2077.97    0.138   176.93
2078.97    0.141   180.00
2079.97    0.145   182.93
2080.97    0.148   185.72
2081.97    0.152   188.39
2082.97    0.156   190.93
2083.97    0.159   193.35
2084.97    0.163   195.66
2085.97    0.167   197.87
2086.97    0.170   199.98
2087.97    0.174   202.00
2088.97    0.178   203.94
2089.97    0.181   205.81
2090.97    0.184   207.61
2091.97    0.188   209.34
2092.97    0.191   211.02
2093.97    0.194   212.64
2094.97    0.196   214.22
2095.97    0.199   215.76
2096.97    0.201   217.25
2097.97    0.204   218.72
2098.97    0.206   220.15
2099.97    0.207   221.55
2100.97    0.209   222.94
2101.97    0.210   224.30
2102.97    0.212   225.65






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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.


Report Information
Double Star Calculator: Version 1.2 ($Rev: 2397 $)
Report created: 2026-06-25 16:32:17



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