Double Star Calculator - Orbit

Orbital Elements for SEE258AB

WDS:	SEE258AB	WDS ID/Discoverer
P:	26.840	Orbital period (years)
a:	0.328	Semi-major axis (arcseconds)
i:	168.7	Inclination (degrees)
Ω:	42.0	Longitude of ascending node (degrees)
T:	1990.870	Epoch of periastron passage (year)
e:	0.515	Eccentricity
ω:	320.0	Longitude of periastron (degrees)
Start-Year:	2011.58	Year
End-Year:	2038.42	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for SEE258AB
Position:	160332.22-574629.5	Epoch-2000 right ascension and declination
WDS-ID:	16035-5747	WDS designation
Discoverer Code:	SEE258AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	143474	HD catalog number
Hipparcos number:	78662	Hipparcos catalog number
V1:	5.20	Magnitude of the primary
V2:	5.76	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2014	Date of last observation
Orbit grade:	1	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Tok2015c	Reference

Double Star Orbit for SEE258AB

WDS 6th Orbit including measures of SEE258AB

-- 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 SEE258AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.446   286.23
--------------------------
2011.58    0.386   218.81
2011.68    0.382   217.98
2011.78    0.379   217.15
2011.88    0.376   216.30
2011.98    0.373   215.43
2012.08    0.369   214.55
2012.18    0.366   213.65
2012.28    0.362   212.73
2012.38    0.359   211.80
2012.48    0.355   210.85
2012.58    0.351   209.87
2012.68    0.348   208.88
2012.78    0.344   207.86
2012.88    0.340   206.83
2012.98    0.336   205.76
2013.08    0.332   204.68
2013.18    0.328   203.57
2013.28    0.324   202.42
2013.38    0.320   201.26
2013.48    0.316   200.06
2013.58    0.312   198.82
2013.68    0.307   197.56
2013.78    0.303   196.26
2013.88    0.299   194.92
2013.98    0.294   193.54
2014.08    0.290   192.12
2014.18    0.286   190.65
2014.28    0.281   189.14
2014.38    0.276   187.58
2014.48    0.272   185.97
2014.58    0.267   184.30
2014.68    0.263   182.57
2014.78    0.258   180.78
2014.88    0.253   178.92
2014.98    0.249   176.99
2015.08    0.244   174.99
2015.18    0.239   172.91
2015.28    0.234   170.75
2015.38    0.230   168.49
2015.48    0.225   166.14
2015.58    0.220   163.69
2015.68    0.216   161.14
2015.78    0.211   158.47
2015.88    0.206   155.69
2015.98    0.202   152.78
2016.08    0.198   149.74
2016.18    0.193   146.57
2016.28    0.189   143.26
2016.38    0.185   139.80
2016.48    0.182   136.19
2016.58    0.178   132.44
2016.68    0.175   128.53
2016.78    0.171   124.48
2016.88    0.169   120.28
2016.98    0.166   115.95
2017.08    0.164   111.48
2017.18    0.162   106.90
2017.28    0.160   102.23
2017.38    0.159    97.47
2017.48    0.158    92.64
2017.58    0.158    87.78
2017.68    0.158    82.91
2017.78    0.158    78.04
2017.88    0.159    73.21
2017.98    0.160    68.43
2018.08    0.161    63.73
2018.18    0.163    59.11
2018.28    0.165    54.61
2018.38    0.167    50.22
2018.48    0.170    45.96
2018.58    0.173    41.83
2018.68    0.176    37.85
2018.78    0.179    34.01
2018.88    0.183    30.30
2018.98    0.186    26.74
2019.08    0.190    23.32
2019.18    0.194    20.03
2019.28    0.198    16.87
2019.38    0.202    13.84
2019.48    0.206    10.93
2019.58    0.210     8.13
2019.68    0.215     5.44
2019.78    0.219     2.86
2019.88    0.223     0.38
2019.98    0.228   357.99
2020.08    0.232   355.70
2020.18    0.236   353.48
2020.28    0.241   351.35
2020.38    0.245   349.30
2020.48    0.250   347.31
2020.58    0.254   345.40
2020.68    0.258   343.55
2020.78    0.263   341.76
2020.88    0.267   340.03
2020.98    0.271   338.36
2021.08    0.276   336.73
2021.18    0.280   335.16
2021.28    0.284   333.63
2021.38    0.288   332.15
2021.48    0.292   330.71
2021.58    0.296   329.31
2021.68    0.300   327.95
2021.78    0.305   326.62
2021.88    0.309   325.33
2021.98    0.312   324.07
2022.08    0.316   322.85
2022.18    0.320   321.65
2022.28    0.324   320.48
2022.38    0.328   319.34
2022.48    0.332   318.22
2022.58    0.335   317.13
2022.68    0.339   316.07
2022.78    0.343   315.02
2022.88    0.346   314.00
2022.98    0.350   313.00
2023.08    0.353   312.02
2023.18    0.357   311.05
2023.28    0.360   310.11
2023.38    0.363   309.18
2023.48    0.367   308.27
2023.58    0.370   307.38
2023.68    0.373   306.50
2023.78    0.376   305.64
2023.88    0.380   304.79
2023.98    0.383   303.95
2024.08    0.386   303.13
2024.18    0.389   302.32
2024.28    0.392   301.52
2024.38    0.395   300.74
2024.48    0.397   299.96
2024.58    0.400   299.20
2024.68    0.403   298.45
2024.78    0.406   297.71
2024.88    0.408   296.98
2024.98    0.411   296.25
2025.08    0.414   295.54
2025.18    0.416   294.84
2025.28    0.419   294.14
2025.38    0.421   293.45
2025.48    0.424   292.77
2025.58    0.426   292.10
2025.68    0.428   291.43
2025.78    0.431   290.78
2025.88    0.433   290.13
2025.98    0.435   289.48
2026.08    0.437   288.84
2026.18    0.439   288.21
2026.28    0.441   287.59
2026.38    0.443   286.97
2026.48    0.445   286.35
2026.58    0.447   285.75
2026.68    0.449   285.14
2026.78    0.451   284.54
2026.88    0.453   283.95
2026.98    0.455   283.36
2027.08    0.457   282.78
2027.18    0.458   282.20
2027.28    0.460   281.62
2027.38    0.462   281.05
2027.48    0.463   280.48
2027.58    0.465   279.92
2027.68    0.466   279.36
2027.78    0.468   278.80
2027.88    0.469   278.25
2027.98    0.470   277.70
2028.08    0.472   277.15
2028.18    0.473   276.61
2028.28    0.474   276.07
2028.38    0.475   275.53
2028.48    0.477   275.00
2028.58    0.478   274.46
2028.68    0.479   273.93
2028.78    0.480   273.41
2028.88    0.481   272.88
2028.98    0.482   272.36
2029.08    0.483   271.84
2029.18    0.484   271.32
2029.28    0.485   270.80
2029.38    0.485   270.28
2029.48    0.486   269.77
2029.58    0.487   269.26
2029.68    0.488   268.75
2029.78    0.488   268.24
2029.88    0.489   267.73
2029.98    0.489   267.22
2030.08    0.490   266.71
2030.18    0.490   266.21
2030.28    0.491   265.71
2030.38    0.491   265.20
2030.48    0.492   264.70
2030.58    0.492   264.20
2030.68    0.492   263.70
2030.78    0.492   263.20
2030.88    0.493   262.70
2030.98    0.493   262.20
2031.08    0.493   261.70
2031.18    0.493   261.20
2031.28    0.493   260.70
2031.38    0.493   260.20
2031.48    0.493   259.70
2031.58    0.493   259.20
2031.68    0.493   258.70
2031.78    0.493   258.20
2031.88    0.492   257.70
2031.98    0.492   257.20
2032.08    0.492   256.70
2032.18    0.492   256.20
2032.28    0.491   255.70
2032.38    0.491   255.20
2032.48    0.490   254.69
2032.58    0.490   254.19
2032.68    0.489   253.68
2032.78    0.489   253.17
2032.88    0.488   252.67
2032.98    0.488   252.16
2033.08    0.487   251.65
2033.18    0.486   251.13
2033.28    0.485   250.62
2033.38    0.485   250.10
2033.48    0.484   249.59
2033.58    0.483   249.07
2033.68    0.482   248.54
2033.78    0.481   248.02
2033.88    0.480   247.50
2033.98    0.479   246.97
2034.08    0.478   246.44
2034.18    0.476   245.90
2034.28    0.475   245.37
2034.38    0.474   244.83
2034.48    0.473   244.29
2034.58    0.471   243.74
2034.68    0.470   243.20
2034.78    0.469   242.65
2034.88    0.467   242.09
2034.98    0.466   241.53
2035.08    0.464   240.97
2035.18    0.463   240.41
2035.28    0.461   239.84
2035.38    0.459   239.27
2035.48    0.457   238.69
2035.58    0.456   238.11
2035.68    0.454   237.52
2035.78    0.452   236.93
2035.88    0.450   236.33
2035.98    0.448   235.73
2036.08    0.446   235.13
2036.18    0.444   234.51
2036.28    0.442   233.90
2036.38    0.440   233.27
2036.48    0.438   232.64
2036.58    0.435   232.01
2036.68    0.433   231.36
2036.78    0.431   230.71
2036.88    0.428   230.06
2036.98    0.426   229.39
2037.08    0.424   228.72
2037.18    0.421   228.04
2037.28    0.418   227.35
2037.38    0.416   226.65
2037.48    0.413   225.95
2037.58    0.410   225.23
2037.68    0.408   224.51
2037.78    0.405   223.77
2037.88    0.402   223.03
2037.98    0.399   222.27
2038.08    0.396   221.51
2038.18    0.393   220.73
2038.28    0.390   219.94
2038.38    0.387   219.13

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 17:21:50