Double Star Calculator - Orbit

Orbital Elements for LSC37AA,AB

WDS:	LSC37AA,AB	WDS ID/Discoverer
P:	120.000	Orbital period (years)
a:	0.739	Semi-major axis (arcseconds)
i:	60.8	Inclination (degrees)
Ω:	59.8	Longitude of ascending node (degrees)
T:	2016.600	Epoch of periastron passage (year)
e:	0.612	Eccentricity
ω:	50.0	Longitude of periastron (degrees)
Start-Year:	1965.0	Year
End-Year:	2085.0	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for LSC37AA,AB
Position:	052745.85-284758.7	Epoch-2000 right ascension and declination
WDS-ID:	05278-2848	WDS designation
Discoverer Code:	LSC37AA,AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	25559	Hipparcos catalog number
V1:	10.3	Magnitude of the primary
V2:	13.3	Magnitude of the secondary
Equinox:		Equinox
Date:	2020	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:	Tok2021f	Reference

Double Star Orbit for LSC37AA,AB

WDS 6th Orbit including measures of LSC37AA,AB

-- 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 LSC37AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.460   223.70
--------------------------
1965.00    0.792   277.50
1966.00    0.780   278.53
1967.00    0.767   279.59
1968.00    0.753   280.68
1969.00    0.740   281.81
1970.00    0.726   282.99
1971.00    0.712   284.21
1972.00    0.698   285.48
1973.00    0.684   286.81
1974.00    0.669   288.19
1975.00    0.655   289.63
1976.00    0.640   291.14
1977.00    0.625   292.72
1978.00    0.611   294.37
1979.00    0.596   296.11
1980.00    0.581   297.94
1981.00    0.567   299.86
1982.00    0.552   301.88
1983.00    0.538   304.01
1984.00    0.523   306.25
1985.00    0.510   308.62
1986.00    0.496   311.12
1987.00    0.483   313.76
1988.00    0.470   316.55
1989.00    0.458   319.48
1990.00    0.447   322.57
1991.00    0.436   325.81
1992.00    0.426   329.22
1993.00    0.417   332.78
1994.00    0.409   336.49
1995.00    0.402   340.34
1996.00    0.396   344.32
1997.00    0.391   348.41
1998.00    0.387   352.60
1999.00    0.384   356.86
2000.00    0.382     1.17
2001.00    0.381     5.52
2002.00    0.381     9.88
2003.00    0.381    14.23
2004.00    0.382    18.56
2005.00    0.383    22.87
2006.00    0.384    27.16
2007.00    0.385    31.44
2008.00    0.384    35.72
2009.00    0.381    40.05
2010.00    0.375    44.46
2011.00    0.366    49.05
2012.00    0.353    53.93
2013.00    0.334    59.28
2014.00    0.308    65.40
2015.00    0.275    72.83
2016.00    0.237    82.48
2017.00    0.198    95.98
2018.00    0.165   115.61
2019.00    0.152   141.53
2020.00    0.166   167.23
2021.00    0.202   186.32
2022.00    0.247   199.03
2023.00    0.296   207.65
2024.00    0.345   213.82
2025.00    0.393   218.47
2026.00    0.438   222.14
2027.00    0.481   225.13
2028.00    0.522   227.65
2029.00    0.559   229.81
2030.00    0.595   231.71
2031.00    0.628   233.40
2032.00    0.659   234.93
2033.00    0.688   236.32
2034.00    0.715   237.60
2035.00    0.741   238.80
2036.00    0.764   239.91
2037.00    0.786   240.96
2038.00    0.807   241.96
2039.00    0.826   242.91
2040.00    0.843   243.82
2041.00    0.860   244.69
2042.00    0.875   245.53
2043.00    0.888   246.34
2044.00    0.901   247.13
2045.00    0.913   247.90
2046.00    0.923   248.65
2047.00    0.933   249.38
2048.00    0.941   250.10
2049.00    0.949   250.81
2050.00    0.956   251.51
2051.00    0.961   252.20
2052.00    0.967   252.88
2053.00    0.971   253.55
2054.00    0.974   254.22
2055.00    0.977   254.88
2056.00    0.979   255.54
2057.00    0.980   256.20
2058.00    0.981   256.86
2059.00    0.980   257.52
2060.00    0.980   258.18
2061.00    0.978   258.84
2062.00    0.976   259.50
2063.00    0.973   260.16
2064.00    0.970   260.83
2065.00    0.966   261.51
2066.00    0.962   262.19
2067.00    0.957   262.87
2068.00    0.952   263.57
2069.00    0.946   264.27
2070.00    0.940   264.98
2071.00    0.933   265.70
2072.00    0.925   266.43
2073.00    0.918   267.18
2074.00    0.909   267.93
2075.00    0.901   268.71
2076.00    0.891   269.49
2077.00    0.882   270.30
2078.00    0.872   271.12
2079.00    0.862   271.96
2080.00    0.851   272.82
2081.00    0.840   273.71
2082.00    0.828   274.62
2083.00    0.817   275.55
2084.00    0.805   276.51

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 15:37:29