Double Star Calculator - Orbit

Orbital Elements for A2050AB

WDS:	A2050AB	WDS ID/Discoverer
P:	114.840	Orbital period (years)
a:	0.152	Semi-major axis (arcseconds)
i:	22.7	Inclination (degrees)
Ω:	89.4	Longitude of ascending node (degrees)
T:	1986.220	Epoch of periastron passage (year)
e:	0.753	Eccentricity
ω:	40.3	Longitude of periastron (degrees)
Start-Year:	1967.58	Year
End-Year:	2082.42	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A2050AB
Position:	080444.45+471723.6	Epoch-2000 right ascension and declination
WDS-ID:	08047+4717	WDS designation
Discoverer Code:	A2050AB	Discover designation and components
ADS number:	6552	Aitken Double Star catalog
HD number:	66263	HD catalog number
Hipparcos number:	39533	Hipparcos catalog number
V1:	9.7	Magnitude of the primary
V2:	9.7	Magnitude of the secondary
Equinox:		Equinox
Date:	1996	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:	Zir2002c	Reference

Double Star Orbit for A2050AB

WDS 6th Orbit including measures of A2050AB

-- 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 A2050AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.246   295.81
--------------------------
1967.58    0.161   342.99
1968.58    0.156   344.74
1969.58    0.150   346.62
1970.58    0.145   348.64
1971.58    0.139   350.84
1972.58    0.133   353.23
1973.58    0.126   355.85
1974.58    0.120   358.76
1975.58    0.113     2.01
1976.58    0.106     5.68
1977.58    0.099     9.88
1978.58    0.091    14.76
1979.58    0.084    20.53
1980.58    0.076    27.49
1981.58    0.068    36.09
1982.58    0.059    47.05
1983.58    0.051    61.45
1984.58    0.044    80.88
1985.58    0.038   107.10
1986.58    0.036   139.54
1987.58    0.039   171.48
1988.58    0.046   196.04
1989.58    0.056   213.09
1990.58    0.066   225.07
1991.58    0.076   233.88
1992.58    0.085   240.66
1993.58    0.095   246.09
1994.58    0.104   250.58
1995.58    0.112   254.37
1996.58    0.120   257.64
1997.58    0.128   260.52
1998.58    0.135   263.08
1999.58    0.142   265.38
2000.58    0.148   267.47
2001.58    0.155   269.39
2002.58    0.161   271.16
2003.58    0.166   272.81
2004.58    0.172   274.34
2005.58    0.177   275.79
2006.58    0.182   277.15
2007.58    0.187   278.44
2008.58    0.192   279.67
2009.58    0.196   280.84
2010.58    0.200   281.96
2011.58    0.204   283.04
2012.58    0.208   284.07
2013.58    0.212   285.07
2014.58    0.215   286.03
2015.58    0.219   286.97
2016.58    0.222   287.87
2017.58    0.225   288.76
2018.58    0.228   289.61
2019.58    0.230   290.45
2020.58    0.233   291.27
2021.58    0.235   292.07
2022.58    0.238   292.86
2023.58    0.240   293.63
2024.58    0.242   294.39
2025.58    0.244   295.13
2026.58    0.246   295.86
2027.58    0.247   296.59
2028.58    0.249   297.30
2029.58    0.250   298.01
2030.58    0.252   298.70
2031.58    0.253   299.40
2032.58    0.254   300.08
2033.58    0.255   300.76
2034.58    0.256   301.44
2035.58    0.256   302.11
2036.58    0.257   302.77
2037.58    0.257   303.44
2038.58    0.258   304.10
2039.58    0.258   304.76
2040.58    0.258   305.42
2041.58    0.258   306.08
2042.58    0.258   306.74
2043.58    0.258   307.40
2044.58    0.258   308.06
2045.58    0.257   308.72
2046.58    0.257   309.39
2047.58    0.256   310.06
2048.58    0.256   310.73
2049.58    0.255   311.40
2050.58    0.254   312.08
2051.58    0.253   312.77
2052.58    0.252   313.46
2053.58    0.250   314.16
2054.58    0.249   314.86
2055.58    0.247   315.58
2056.58    0.246   316.30
2057.58    0.244   317.03
2058.58    0.242   317.78
2059.58    0.240   318.53
2060.58    0.238   319.30
2061.58    0.236   320.08
2062.58    0.234   320.88
2063.58    0.231   321.69
2064.58    0.229   322.52
2065.58    0.226   323.37
2066.58    0.223   324.24
2067.58    0.221   325.13
2068.58    0.218   326.05
2069.58    0.214   326.99
2070.58    0.211   327.96
2071.58    0.208   328.96
2072.58    0.204   330.00
2073.58    0.200   331.08
2074.58    0.197   332.19
2075.58    0.193   333.35
2076.58    0.188   334.57
2077.58    0.184   335.83
2078.58    0.180   337.16
2079.58    0.175   338.56
2080.58    0.170   340.04
2081.58    0.165   341.60

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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 16:04:10