Double Star Calculator - Orbit

Orbital Elements for LAF27

WDS:	LAF27	WDS ID/Discoverer
P:	26.540	Orbital period (years)
a:	0.5344	Semi-major axis (arcseconds)
i:	50.59	Inclination (degrees)
Ω:	319.68	Longitude of ascending node (degrees)
T:	2014.597	Epoch of periastron passage (year)
e:	0.3294	Eccentricity
ω:	82.35	Longitude of periastron (degrees)
Start-Year:	2011.73	Year
End-Year:	2038.27	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for LAF27
Position:	022232.55-234858.8	Epoch-2000 right ascension and declination
WDS-ID:	02225-2349	WDS designation
Discoverer Code:	LAF27	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	14802	HD catalog number
Hipparcos number:	11072	Hipparcos catalog number
V1:	5.2	Magnitude of the primary
V2:	10.2	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2012	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:	Fek2018	Reference

Double Star Orbit for LAF27

WDS 6th Orbit including measures of LAF27

-- 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 LAF27

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.477   203.12
--------------------------
2011.73    0.427   326.59
2011.83    0.421   327.88
2011.93    0.415   329.21
2012.03    0.408   330.58
2012.13    0.402   332.00
2012.23    0.395   333.46
2012.33    0.388   334.98
2012.43    0.381   336.55
2012.53    0.373   338.19
2012.63    0.365   339.89
2012.73    0.358   341.66
2012.83    0.350   343.52
2012.93    0.342   345.46
2013.03    0.333   347.50
2013.13    0.325   349.64
2013.23    0.317   351.90
2013.33    0.309   354.27
2013.43    0.300   356.78
2013.53    0.292   359.42
2013.63    0.284     2.21
2013.73    0.277     5.16
2013.83    0.269     8.28
2013.93    0.262    11.56
2014.03    0.256    15.03
2014.13    0.250    18.67
2014.23    0.244    22.48
2014.33    0.239    26.45
2014.43    0.235    30.57
2014.53    0.232    34.83
2014.63    0.230    39.18
2014.73    0.228    43.61
2014.83    0.228    48.07
2014.93    0.228    52.53
2015.03    0.230    56.96
2015.13    0.232    61.31
2015.23    0.236    65.55
2015.33    0.240    69.67
2015.43    0.245    73.63
2015.53    0.250    77.43
2015.63    0.256    81.05
2015.73    0.263    84.49
2015.83    0.270    87.76
2015.93    0.278    90.85
2016.03    0.286    93.77
2016.13    0.294    96.54
2016.23    0.302    99.15
2016.33    0.311   101.62
2016.43    0.319   103.96
2016.53    0.328   106.18
2016.63    0.337   108.28
2016.73    0.345   110.27
2016.83    0.354   112.17
2016.93    0.363   113.98
2017.03    0.371   115.71
2017.13    0.379   117.36
2017.23    0.387   118.94
2017.33    0.395   120.46
2017.43    0.403   121.91
2017.53    0.411   123.32
2017.63    0.418   124.67
2017.73    0.425   125.97
2017.83    0.432   127.24
2017.93    0.439   128.46
2018.03    0.446   129.64
2018.13    0.452   130.80
2018.23    0.458   131.92
2018.33    0.464   133.01
2018.43    0.470   134.07
2018.53    0.475   135.11
2018.63    0.481   136.13
2018.73    0.486   137.12
2018.83    0.491   138.09
2018.93    0.495   139.05
2019.03    0.500   139.99
2019.13    0.504   140.91
2019.23    0.508   141.82
2019.33    0.512   142.71
2019.43    0.515   143.59
2019.53    0.519   144.46
2019.63    0.522   145.32
2019.73    0.525   146.17
2019.83    0.528   147.00
2019.93    0.530   147.83
2020.03    0.533   148.66
2020.13    0.535   149.47
2020.23    0.537   150.28
2020.33    0.539   151.08
2020.43    0.541   151.88
2020.53    0.542   152.67
2020.63    0.544   153.46
2020.73    0.545   154.24
2020.83    0.546   155.02
2020.93    0.547   155.80
2021.03    0.548   156.57
2021.13    0.549   157.34
2021.23    0.549   158.11
2021.33    0.550   158.88
2021.43    0.550   159.65
2021.53    0.550   160.42
2021.63    0.550   161.18
2021.73    0.550   161.95
2021.83    0.550   162.72
2021.93    0.550   163.49
2022.03    0.549   164.25
2022.13    0.549   165.02
2022.23    0.548   165.80
2022.33    0.548   166.57
2022.43    0.547   167.34
2022.53    0.546   168.12
2022.63    0.545   168.90
2022.73    0.544   169.68
2022.83    0.543   170.47
2022.93    0.542   171.26
2023.03    0.541   172.05
2023.13    0.539   172.85
2023.23    0.538   173.65
2023.33    0.537   174.45
2023.43    0.535   175.26
2023.53    0.533   176.07
2023.63    0.532   176.89
2023.73    0.530   177.72
2023.83    0.529   178.55
2023.93    0.527   179.38
2024.03    0.525   180.22
2024.13    0.523   181.06
2024.23    0.521   181.92
2024.33    0.519   182.77
2024.43    0.518   183.64
2024.53    0.516   184.51
2024.63    0.514   185.38
2024.73    0.512   186.27
2024.83    0.510   187.16
2024.93    0.508   188.05
2025.03    0.506   188.96
2025.13    0.504   189.87
2025.23    0.502   190.79
2025.33    0.500   191.72
2025.43    0.498   192.65
2025.53    0.496   193.59
2025.63    0.494   194.54
2025.73    0.492   195.50
2025.83    0.490   196.46
2025.93    0.488   197.43
2026.03    0.486   198.41
2026.13    0.484   199.40
2026.23    0.482   200.40
2026.33    0.480   201.40
2026.43    0.478   202.41
2026.53    0.477   203.43
2026.63    0.475   204.46
2026.73    0.473   205.49
2026.83    0.471   206.53
2026.93    0.470   207.58
2027.03    0.468   208.64
2027.13    0.467   209.70
2027.23    0.465   210.77
2027.33    0.464   211.84
2027.43    0.462   212.93
2027.53    0.461   214.02
2027.63    0.460   215.11
2027.73    0.458   216.22
2027.83    0.457   217.32
2027.93    0.456   218.44
2028.03    0.455   219.55
2028.13    0.454   220.68
2028.23    0.453   221.80
2028.33    0.453   222.94
2028.43    0.452   224.07
2028.53    0.451   225.21
2028.63    0.450   226.36
2028.73    0.450   227.50
2028.83    0.449   228.65
2028.93    0.449   229.80
2029.03    0.449   230.95
2029.13    0.448   232.11
2029.23    0.448   233.26
2029.33    0.448   234.42
2029.43    0.448   235.57
2029.53    0.448   236.73
2029.63    0.448   237.89
2029.73    0.448   239.04
2029.83    0.449   240.20
2029.93    0.449   241.35
2030.03    0.449   242.50
2030.13    0.450   243.65
2030.23    0.450   244.79
2030.33    0.451   245.94
2030.43    0.452   247.08
2030.53    0.452   248.21
2030.63    0.453   249.35
2030.73    0.454   250.48
2030.83    0.455   251.60
2030.93    0.456   252.72
2031.03    0.457   253.84
2031.13    0.458   254.95
2031.23    0.459   256.05
2031.33    0.460   257.15
2031.43    0.461   258.25
2031.53    0.462   259.34
2031.63    0.464   260.42
2031.73    0.465   261.50
2031.83    0.466   262.57
2031.93    0.468   263.63
2032.03    0.469   264.69
2032.13    0.470   265.75
2032.23    0.472   266.79
2032.33    0.473   267.83
2032.43    0.475   268.87
2032.53    0.476   269.89
2032.63    0.477   270.92
2032.73    0.479   271.93
2032.83    0.480   272.94
2032.93    0.482   273.94
2033.03    0.483   274.94
2033.13    0.485   275.93
2033.23    0.486   276.92
2033.33    0.487   277.90
2033.43    0.489   278.87
2033.53    0.490   279.84
2033.63    0.491   280.81
2033.73    0.493   281.77
2033.83    0.494   282.72
2033.93    0.495   283.67
2034.03    0.496   284.62
2034.13    0.497   285.56
2034.23    0.498   286.50
2034.33    0.499   287.43
2034.43    0.500   288.37
2034.53    0.500   289.29
2034.63    0.501   290.22
2034.73    0.502   291.14
2034.83    0.502   292.07
2034.93    0.503   292.99
2035.03    0.503   293.90
2035.13    0.503   294.82
2035.23    0.503   295.74
2035.33    0.503   296.66
2035.43    0.503   297.57
2035.53    0.503   298.49
2035.63    0.502   299.41
2035.73    0.502   300.33
2035.83    0.501   301.25
2035.93    0.500   302.18
2036.03    0.499   303.11
2036.13    0.498   304.04
2036.23    0.497   304.98
2036.33    0.496   305.92
2036.43    0.494   306.87
2036.53    0.492   307.82
2036.63    0.490   308.79
2036.73    0.488   309.76
2036.83    0.486   310.74
2036.93    0.483   311.73
2037.03    0.480   312.73
2037.13    0.477   313.74
2037.23    0.474   314.77
2037.33    0.471   315.81
2037.43    0.467   316.87
2037.53    0.463   317.94
2037.63    0.459   319.03
2037.73    0.455   320.15
2037.83    0.450   321.28
2037.93    0.445   322.44
2038.03    0.440   323.63
2038.13    0.435   324.84
2038.23    0.429   326.08

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 14:59:42