Double Star Calculator - Orbit

Orbital Elements for A1956
WDS: A1956 WDS ID/Discoverer
P: 110.900 Orbital period (years)
a: 0.3705 Semi-major axis (arcseconds)
i: 115.1 Inclination (degrees)
Ω: 67.2 Longitude of ascending node (degrees)
T: 2002.600 Epoch of periastron passage (year)
e: 0.437 Eccentricity
ω: 354.5 Longitude of periastron (degrees)
Start-Year: 1969.55 Year
End-Year: 2080.45 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A1956
Position: 065129.34+035818.4 Epoch-2000 right ascension and declination
WDS-ID: 06515+0358 WDS designation
Discoverer Code: A1956 Discover designation and components
ADS number: 5519 Aitken Double Star catalog
HD number: 50022 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.2 Magnitude of the primary
V2: 10.1 Magnitude of the secondary
Equinox: Equinox
Date: 2019 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: Tok2020e Reference

Double Star Orbit for A1956



WDS 6th Orbit including measures of A1956

-- 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 A1956
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.254   282.64
--------------------------
1969.55    0.421   233.97
1970.55    0.410   232.98
1971.55    0.398   231.94
1972.55    0.385   230.83
1973.55    0.373   229.64
1974.55    0.359   228.37
1975.55    0.345   227.00
1976.55    0.331   225.52
1977.55    0.316   223.89
1978.55    0.301   222.10
1979.55    0.285   220.12
1980.55    0.269   217.90
1981.55    0.252   215.39
1982.55    0.236   212.53
1983.55    0.219   209.24
1984.55    0.202   205.41
1985.55    0.186   200.89
1986.55    0.171   195.53
1987.55    0.156   189.13
1988.55    0.143   181.47
1989.55    0.132   172.42
1990.55    0.124   162.01
1991.55    0.120   150.57
1992.55    0.120   138.75
1993.55    0.125   127.36
1994.55    0.132   116.98
1995.55    0.142   107.91
1996.55    0.154   100.12
1997.55    0.166    93.44
1998.55    0.177    87.66
1999.55    0.188    82.57
2000.55    0.197    77.98
2001.55    0.204    73.75
2002.55    0.208    69.74
2003.55    0.209    65.83
2004.55    0.208    61.92
2005.55    0.204    57.91
2006.55    0.198    53.70
2007.55    0.189    49.16
2008.55    0.180    44.18
2009.55    0.170    38.63
2010.55    0.160    32.36
2011.55    0.150    25.25
2012.55    0.141    17.21
2013.55    0.135     8.26
2014.55    0.131   358.58
2015.55    0.130   348.52
2016.55    0.132   338.57
2017.55    0.137   329.18
2018.55    0.146   320.66
2019.55    0.156   313.15
2020.55    0.168   306.64
2021.55    0.181   301.03
2022.55    0.195   296.21
2023.55    0.210   292.06
2024.55    0.225   288.45
2025.55    0.240   285.29
2026.55    0.255   282.51
2027.55    0.270   280.03
2028.55    0.285   277.82
2029.55    0.299   275.83
2030.55    0.314   274.02
2031.55    0.328   272.36
2032.55    0.341   270.84
2033.55    0.354   269.44
2034.55    0.367   268.13
2035.55    0.380   266.91
2036.55    0.392   265.77
2037.55    0.403   264.69
2038.55    0.414   263.68
2039.55    0.425   262.71
2040.55    0.435   261.79
2041.55    0.444   260.91
2042.55    0.453   260.06
2043.55    0.462   259.25
2044.55    0.470   258.47
2045.55    0.478   257.71
2046.55    0.485   256.98
2047.55    0.491   256.26
2048.55    0.498   255.57
2049.55    0.503   254.89
2050.55    0.508   254.23
2051.55    0.513   253.57
2052.55    0.517   252.93
2053.55    0.521   252.30
2054.55    0.524   251.68
2055.55    0.526   251.06
2056.55    0.528   250.45
2057.55    0.530   249.84
2058.55    0.531   249.24
2059.55    0.531   248.63
2060.55    0.531   248.03
2061.55    0.531   247.43
2062.55    0.530   246.83
2063.55    0.528   246.22
2064.55    0.526   245.61
2065.55    0.524   244.99
2066.55    0.520   244.37
2067.55    0.517   243.73
2068.55    0.513   243.09
2069.55    0.508   242.44
2070.55    0.503   241.77
2071.55    0.497   241.09
2072.55    0.490   240.39
2073.55    0.483   239.68
2074.55    0.476   238.94
2075.55    0.468   238.17
2076.55    0.459   237.38
2077.55    0.450   236.56
2078.55    0.441   235.71
2079.55    0.431   234.81






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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 15:52:06



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