Double Star Calculator - Orbit

Orbital Elements for A2095AB
WDS: A2095AB WDS ID/Discoverer
P: 148.580 Orbital period (years)
a: 0.345 Semi-major axis (arcseconds)
i: 94.5 Inclination (degrees)
Ω: 147.5 Longitude of ascending node (degrees)
T: 2049.900 Epoch of periastron passage (year)
e: 0.758 Eccentricity
ω: 101.6 Longitude of periastron (degrees)
Start-Year: 1950.71 Year
End-Year: 2099.29 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A2095AB
Position: 201540.26+433859.6 Epoch-2000 right ascension and declination
WDS-ID: 20157+4339 WDS designation
Discoverer Code: A2095AB Discover designation and components
ADS number: 13611 Aitken Double Star catalog
HD number: 192911 HD catalog number
Hipparcos number: 99862 Hipparcos catalog number
V1: 9.06 Magnitude of the primary
V2: 9.82 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2009 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: Lin2012c Reference

Double Star Orbit for A2095AB



WDS 6th Orbit including measures of A2095AB

-- 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 A2095AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.282   151.76
--------------------------
1950.71    0.047   259.87
1951.71    0.046   253.04
1952.71    0.045   245.85
1953.71    0.045   238.47
1954.71    0.045   231.15
1955.71    0.046   224.11
1956.71    0.048   217.52
1957.71    0.051   211.50
1958.71    0.054   206.07
1959.71    0.057   201.25
1960.71    0.061   196.98
1961.71    0.065   193.22
1962.71    0.069   189.90
1963.71    0.073   186.97
1964.71    0.078   184.38
1965.71    0.082   182.07
1966.71    0.087   180.01
1967.71    0.092   178.16
1968.71    0.097   176.50
1969.71    0.101   174.99
1970.71    0.106   173.62
1971.71    0.111   172.38
1972.71    0.116   171.24
1973.71    0.121   170.19
1974.71    0.126   169.22
1975.71    0.131   168.33
1976.71    0.136   167.50
1977.71    0.141   166.73
1978.71    0.146   166.01
1979.71    0.151   165.34
1980.71    0.155   164.71
1981.71    0.160   164.12
1982.71    0.165   163.56
1983.71    0.170   163.03
1984.71    0.174   162.53
1985.71    0.179   162.06
1986.71    0.183   161.61
1987.71    0.188   161.18
1988.71    0.192   160.77
1989.71    0.197   160.38
1990.71    0.201   160.01
1991.71    0.205   159.65
1992.71    0.210   159.31
1993.71    0.214   158.98
1994.71    0.218   158.67
1995.71    0.222   158.36
1996.71    0.226   158.07
1997.71    0.230   157.78
1998.71    0.233   157.50
1999.71    0.237   157.24
2000.71    0.240   156.98
2001.71    0.244   156.73
2002.71    0.247   156.48
2003.71    0.251   156.24
2004.71    0.254   156.01
2005.71    0.257   155.79
2006.71    0.260   155.56
2007.71    0.262   155.35
2008.71    0.265   155.14
2009.71    0.268   154.93
2010.71    0.270   154.72
2011.71    0.272   154.52
2012.71    0.274   154.32
2013.71    0.276   154.13
2014.71    0.278   153.94
2015.71    0.280   153.75
2016.71    0.281   153.56
2017.71    0.282   153.37
2018.71    0.283   153.19
2019.71    0.284   153.01
2020.71    0.284   152.82
2021.71    0.285   152.64
2022.71    0.285   152.46
2023.71    0.285   152.28
2024.71    0.284   152.09
2025.71    0.283   151.91
2026.71    0.282   151.73
2027.71    0.280   151.54
2028.71    0.279   151.35
2029.71    0.276   151.16
2030.71    0.273   150.96
2031.71    0.270   150.76
2032.71    0.266   150.56
2033.71    0.262   150.35
2034.71    0.257   150.13
2035.71    0.251   149.90
2036.71    0.245   149.66
2037.71    0.237   149.40
2038.71    0.229   149.13
2039.71    0.219   148.84
2040.71    0.208   148.52
2041.71    0.196   148.15
2042.71    0.181   147.74
2043.71    0.165   147.25
2044.71    0.145   146.63
2045.71    0.123   145.81
2046.71    0.096   144.57
2047.71    0.065   142.25
2048.71    0.030   134.79
2049.71    0.011     2.14
2050.71    0.047   334.38
2051.71    0.079   330.51
2052.71    0.105   328.76
2053.71    0.125   327.64
2054.71    0.140   326.80
2055.71    0.152   326.10
2056.71    0.160   325.50
2057.71    0.167   324.95
2058.71    0.172   324.43
2059.71    0.175   323.94
2060.71    0.177   323.47
2061.71    0.179   323.00
2062.71    0.179   322.54
2063.71    0.179   322.08
2064.71    0.178   321.62
2065.71    0.177   321.15
2066.71    0.175   320.68
2067.71    0.173   320.19
2068.71    0.171   319.69
2069.71    0.168   319.17
2070.71    0.165   318.64
2071.71    0.162   318.09
2072.71    0.158   317.51
2073.71    0.154   316.90
2074.71    0.150   316.27
2075.71    0.146   315.60
2076.71    0.142   314.89
2077.71    0.138   314.14
2078.71    0.134   313.34
2079.71    0.129   312.49
2080.71    0.125   311.57
2081.71    0.120   310.58
2082.71    0.115   309.52
2083.71    0.111   308.37
2084.71    0.106   307.11
2085.71    0.101   305.74
2086.71    0.097   304.23
2087.71    0.092   302.56
2088.71    0.087   300.72
2089.71    0.083   298.67
2090.71    0.078   296.38
2091.71    0.074   293.80
2092.71    0.069   290.90
2093.71    0.065   287.62
2094.71    0.061   283.90
2095.71    0.057   279.68
2096.71    0.054   274.92
2097.71    0.051   269.56
2098.71    0.049   263.59






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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 18:13:10



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