Double Star Calculator - Orbit

Orbital Elements for L35CD

WDS:	L35CD	WDS ID/Discoverer
P:	117.920	Orbital period (years)
a:	0.426	Semi-major axis (arcseconds)
i:	166.0	Inclination (degrees)
Ω:	294.9	Longitude of ascending node (degrees)
T:	1974.320	Epoch of periastron passage (year)
e:	0.198	Eccentricity
ω:	6.6	Longitude of periastron (degrees)
Start-Year:	1966.04	Year
End-Year:	2083.96	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for L35CD
Position:	203253.06+135809.1	Epoch-2000 right ascension and declination
WDS-ID:	20329+1357	WDS designation
Discoverer Code:	L35CD	Discover designation and components
ADS number:	13987	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	101390	Hipparcos catalog number
V1:	10.60	Magnitude of the primary
V2:	10.92	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2009	Date of last observation
Orbit grade:	2	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Hrt2014b	Reference

Double Star Orbit for L35CD

WDS 6th Orbit including measures of L35CD

-- 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 L35CD

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.506   122.28
--------------------------
1966.04    0.351   325.16
1967.04    0.349   320.86
1968.04    0.347   316.52
1969.04    0.346   312.13
1970.04    0.344   307.70
1971.04    0.343   303.25
1972.04    0.343   298.77
1973.04    0.342   294.27
1974.04    0.342   289.76
1975.04    0.341   285.24
1976.04    0.342   280.72
1977.04    0.342   276.21
1978.04    0.343   271.71
1979.04    0.343   267.23
1980.04    0.345   262.78
1981.04    0.346   258.36
1982.04    0.348   253.98
1983.04    0.350   249.64
1984.04    0.352   245.36
1985.04    0.354   241.13
1986.04    0.357   236.96
1987.04    0.360   232.86
1988.04    0.363   228.83
1989.04    0.367   224.88
1990.04    0.370   221.00
1991.04    0.374   217.19
1992.04    0.378   213.47
1993.04    0.382   209.82
1994.04    0.387   206.26
1995.04    0.391   202.77
1996.04    0.396   199.36
1997.04    0.400   196.03
1998.04    0.405   192.78
1999.04    0.410   189.61
2000.04    0.414   186.50
2001.04    0.419   183.47
2002.04    0.424   180.50
2003.04    0.429   177.60
2004.04    0.433   174.76
2005.04    0.438   171.99
2006.04    0.443   169.27
2007.04    0.447   166.61
2008.04    0.451   164.00
2009.04    0.456   161.44
2010.04    0.460   158.92
2011.04    0.464   156.45
2012.04    0.468   154.03
2013.04    0.472   151.64
2014.04    0.475   149.29
2015.04    0.479   146.98
2016.04    0.482   144.70
2017.04    0.485   142.45
2018.04    0.488   140.23
2019.04    0.491   138.03
2020.04    0.494   135.86
2021.04    0.496   133.71
2022.04    0.499   131.58
2023.04    0.501   129.47
2024.04    0.503   127.38
2025.04    0.504   125.30
2026.04    0.506   123.23
2027.04    0.507   121.18
2028.04    0.508   119.13
2029.04    0.509   117.09
2030.04    0.509   115.06
2031.04    0.510   113.03
2032.04    0.510   111.00
2033.04    0.510   108.98
2034.04    0.510   106.96
2035.04    0.510   104.93
2036.04    0.509   102.90
2037.04    0.508   100.86
2038.04    0.507    98.82
2039.04    0.506    96.76
2040.04    0.505    94.70
2041.04    0.503    92.63
2042.04    0.501    90.54
2043.04    0.499    88.43
2044.04    0.497    86.31
2045.04    0.495    84.17
2046.04    0.492    82.01
2047.04    0.490    79.82
2048.04    0.487    77.61
2049.04    0.484    75.38
2050.04    0.481    73.11
2051.04    0.477    70.81
2052.04    0.474    68.49
2053.04    0.470    66.12
2054.04    0.467    63.72
2055.04    0.463    61.28
2056.04    0.459    58.80
2057.04    0.455    56.28
2058.04    0.451    53.70
2059.04    0.446    51.08
2060.04    0.442    48.41
2061.04    0.438    45.69
2062.04    0.433    42.91
2063.04    0.429    40.08
2064.04    0.424    37.18
2065.04    0.420    34.23
2066.04    0.415    31.20
2067.04    0.411    28.12
2068.04    0.406    24.96
2069.04    0.402    21.74
2070.04    0.398    18.44
2071.04    0.393    15.08
2072.04    0.389    11.64
2073.04    0.385     8.12
2074.04    0.381     4.54
2075.04    0.377     0.88
2076.04    0.374   357.14
2077.04    0.370   353.33
2078.04    0.367   349.46
2079.04    0.364   345.51
2080.04    0.361   341.49
2081.04    0.358   337.41
2082.04    0.355   333.27
2083.04    0.353   329.07

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 18:16:27