Double Star Calculator - Orbit

Orbital Elements for A2013

WDS:	A2013	WDS ID/Discoverer
P:	34.660	Orbital period (years)
a:	0.346	Semi-major axis (arcseconds)
i:	112.3	Inclination (degrees)
Ω:	91.8	Longitude of ascending node (degrees)
T:	2005.690	Epoch of periastron passage (year)
e:	0.593	Eccentricity
ω:	137.6	Longitude of periastron (degrees)
Start-Year:	2007.67	Year
End-Year:	2042.33	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A2013
Position:	021553.38+063734.9	Epoch-2000 right ascension and declination
WDS-ID:	02159+0638	WDS designation
Discoverer Code:	A2013	Discover designation and components
ADS number:	1729	Aitken Double Star catalog
HD number:	13959	HD catalog number
Hipparcos number:	10552	Hipparcos catalog number
V1:	9.84	Magnitude of the primary
V2:	9.79	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2004	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:	Doc2006i	Reference

Double Star Orbit for A2013

WDS 6th Orbit including measures of A2013

-- 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 A2013

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.472   104.50
--------------------------
2007.67    0.168   256.77
2007.77    0.168   255.43
2007.87    0.167   254.07
2007.97    0.166   252.71
2008.07    0.165   251.33
2008.17    0.164   249.93
2008.27    0.163   248.52
2008.37    0.162   247.08
2008.47    0.161   245.62
2008.57    0.159   244.13
2008.67    0.158   242.62
2008.77    0.156   241.08
2008.87    0.155   239.51
2008.97    0.153   237.91
2009.07    0.152   236.27
2009.17    0.150   234.61
2009.27    0.149   232.91
2009.37    0.147   231.17
2009.47    0.146   229.41
2009.57    0.145   227.61
2009.67    0.143   225.77
2009.77    0.142   223.91
2009.87    0.141   222.01
2009.97    0.140   220.08
2010.07    0.139   218.13
2010.17    0.138   216.15
2010.27    0.137   214.14
2010.37    0.137   212.12
2010.47    0.136   210.07
2010.57    0.136   208.02
2010.67    0.135   205.95
2010.77    0.135   203.87
2010.87    0.135   201.79
2010.97    0.135   199.72
2011.07    0.135   197.64
2011.17    0.136   195.58
2011.27    0.136   193.53
2011.37    0.137   191.49
2011.47    0.138   189.47
2011.57    0.139   187.48
2011.67    0.140   185.52
2011.77    0.141   183.58
2011.87    0.142   181.68
2011.97    0.143   179.81
2012.07    0.145   177.98
2012.17    0.146   176.18
2012.27    0.148   174.43
2012.37    0.150   172.72
2012.47    0.152   171.05
2012.57    0.154   169.42
2012.67    0.156   167.83
2012.77    0.158   166.28
2012.87    0.160   164.78
2012.97    0.162   163.32
2013.07    0.165   161.90
2013.17    0.167   160.52
2013.27    0.170   159.18
2013.37    0.172   157.88
2013.47    0.175   156.62
2013.57    0.178   155.40
2013.67    0.180   154.21
2013.77    0.183   153.06
2013.87    0.186   151.94
2013.97    0.189   150.86
2014.07    0.192   149.81
2014.17    0.194   148.79
2014.27    0.197   147.80
2014.37    0.200   146.84
2014.47    0.203   145.90
2014.57    0.206   145.00
2014.67    0.209   144.12
2014.77    0.212   143.26
2014.87    0.215   142.43
2014.97    0.218   141.62
2015.07    0.222   140.84
2015.17    0.225   140.08
2015.27    0.228   139.33
2015.37    0.231   138.61
2015.47    0.234   137.91
2015.57    0.237   137.22
2015.67    0.240   136.56
2015.77    0.243   135.91
2015.87    0.246   135.27
2015.97    0.250   134.65
2016.07    0.253   134.05
2016.17    0.256   133.46
2016.27    0.259   132.89
2016.37    0.262   132.33
2016.47    0.265   131.78
2016.57    0.268   131.25
2016.67    0.271   130.73
2016.77    0.274   130.22
2016.87    0.277   129.72
2016.97    0.281   129.23
2017.07    0.284   128.75
2017.17    0.287   128.29
2017.27    0.290   127.83
2017.37    0.293   127.38
2017.47    0.296   126.94
2017.57    0.299   126.51
2017.67    0.302   126.09
2017.77    0.305   125.68
2017.87    0.308   125.27
2017.97    0.311   124.87
2018.07    0.313   124.48
2018.17    0.316   124.10
2018.27    0.319   123.72
2018.37    0.322   123.35
2018.47    0.325   122.99
2018.57    0.328   122.63
2018.67    0.331   122.28
2018.77    0.333   121.94
2018.87    0.336   121.60
2018.97    0.339   121.27
2019.07    0.342   120.94
2019.17    0.344   120.62
2019.27    0.347   120.30
2019.37    0.350   119.98
2019.47    0.352   119.68
2019.57    0.355   119.37
2019.67    0.358   119.07
2019.77    0.360   118.78
2019.87    0.363   118.49
2019.97    0.365   118.20
2020.07    0.368   117.92
2020.17    0.370   117.64
2020.27    0.373   117.36
2020.37    0.375   117.09
2020.47    0.378   116.82
2020.57    0.380   116.56
2020.67    0.382   116.30
2020.77    0.385   116.04
2020.87    0.387   115.78
2020.97    0.389   115.53
2021.07    0.392   115.28
2021.17    0.394   115.04
2021.27    0.396   114.79
2021.37    0.398   114.55
2021.47    0.401   114.31
2021.57    0.403   114.08
2021.67    0.405   113.85
2021.77    0.407   113.62
2021.87    0.409   113.39
2021.97    0.411   113.16
2022.07    0.413   112.94
2022.17    0.415   112.72
2022.27    0.417   112.50
2022.37    0.419   112.28
2022.47    0.421   112.06
2022.57    0.423   111.85
2022.67    0.425   111.64
2022.77    0.426   111.43
2022.87    0.428   111.22
2022.97    0.430   111.01
2023.07    0.432   110.81
2023.17    0.433   110.61
2023.27    0.435   110.40
2023.37    0.437   110.20
2023.47    0.438   110.01
2023.57    0.440   109.81
2023.67    0.441   109.61
2023.77    0.443   109.42
2023.87    0.444   109.23
2023.97    0.446   109.03
2024.07    0.447   108.84
2024.17    0.449   108.65
2024.27    0.450   108.47
2024.37    0.451   108.28
2024.47    0.453   108.09
2024.57    0.454   107.91
2024.67    0.455   107.72
2024.77    0.456   107.54
2024.87    0.457   107.36
2024.97    0.459   107.18
2025.07    0.460   107.00
2025.17    0.461   106.82
2025.27    0.462   106.64
2025.37    0.463   106.46
2025.47    0.464   106.28
2025.57    0.465   106.11
2025.67    0.466   105.93
2025.77    0.466   105.76
2025.87    0.467   105.58
2025.97    0.468   105.41
2026.07    0.469   105.24
2026.17    0.469   105.06
2026.27    0.470   104.89
2026.37    0.471   104.72
2026.47    0.471   104.55
2026.57    0.472   104.38
2026.67    0.472   104.21
2026.77    0.473   104.04
2026.87    0.473   103.87
2026.97    0.474   103.70
2027.07    0.474   103.53
2027.17    0.474   103.36
2027.27    0.475   103.19
2027.37    0.475   103.02
2027.47    0.475   102.85
2027.57    0.475   102.69
2027.67    0.476   102.52
2027.77    0.476   102.35
2027.87    0.476   102.18
2027.97    0.476   102.01
2028.07    0.476   101.85
2028.17    0.476   101.68
2028.27    0.475   101.51
2028.37    0.475   101.34
2028.47    0.475   101.17
2028.57    0.475   101.01
2028.67    0.474   100.84
2028.77    0.474   100.67
2028.87    0.474   100.50
2028.97    0.473   100.33
2029.07    0.473   100.16
2029.17    0.472    99.99
2029.27    0.472    99.82
2029.37    0.471    99.65
2029.47    0.470    99.48
2029.57    0.470    99.30
2029.67    0.469    99.13
2029.77    0.468    98.96
2029.87    0.467    98.78
2029.97    0.466    98.61
2030.07    0.465    98.44
2030.17    0.464    98.26
2030.27    0.463    98.08
2030.37    0.462    97.91
2030.47    0.461    97.73
2030.57    0.460    97.55
2030.67    0.458    97.37
2030.77    0.457    97.19
2030.87    0.455    97.00
2030.97    0.454    96.82
2031.07    0.453    96.63
2031.17    0.451    96.45
2031.27    0.449    96.26
2031.37    0.448    96.07
2031.47    0.446    95.88
2031.57    0.444    95.69
2031.67    0.442    95.50
2031.77    0.440    95.30
2031.87    0.438    95.10
2031.97    0.436    94.90
2032.07    0.434    94.70
2032.17    0.432    94.50
2032.27    0.430    94.30
2032.37    0.427    94.09
2032.47    0.425    93.88
2032.57    0.422    93.67
2032.67    0.420    93.45
2032.77    0.417    93.24
2032.87    0.415    93.02
2032.97    0.412    92.80
2033.07    0.409    92.57
2033.17    0.406    92.34
2033.27    0.403    92.11
2033.37    0.400    91.87
2033.47    0.397    91.63
2033.57    0.394    91.39
2033.67    0.390    91.14
2033.77    0.387    90.89
2033.87    0.384    90.64
2033.97    0.380    90.38
2034.07    0.376    90.11
2034.17    0.373    89.84
2034.27    0.369    89.56
2034.37    0.365    89.28
2034.47    0.361    88.99
2034.57    0.357    88.70
2034.67    0.353    88.40
2034.77    0.349    88.09
2034.87    0.344    87.77
2034.97    0.340    87.45
2035.07    0.335    87.11
2035.17    0.330    86.77
2035.27    0.326    86.42
2035.37    0.321    86.05
2035.47    0.316    85.68
2035.57    0.311    85.29
2035.67    0.306    84.89
2035.77    0.300    84.48
2035.87    0.295    84.05
2035.97    0.289    83.60
2036.07    0.284    83.14
2036.17    0.278    82.66
2036.27    0.272    82.15
2036.37    0.266    81.63
2036.47    0.260    81.08
2036.57    0.253    80.50
2036.67    0.247    79.89
2036.77    0.240    79.25
2036.87    0.234    78.58
2036.97    0.227    77.86
2037.07    0.220    77.10
2037.17    0.213    76.29
2037.27    0.206    75.42
2037.37    0.198    74.49
2037.47    0.191    73.49
2037.57    0.183    72.40
2037.67    0.176    71.22
2037.77    0.168    69.93
2037.87    0.160    68.52
2037.97    0.152    66.95
2038.07    0.144    65.21
2038.17    0.136    63.27
2038.27    0.127    61.07
2038.37    0.119    58.57
2038.47    0.111    55.71
2038.57    0.103    52.40
2038.67    0.095    48.54
2038.77    0.088    44.01
2038.87    0.081    38.67
2038.97    0.075    32.35
2039.07    0.069    24.95
2039.17    0.065    16.40
2039.27    0.062     6.82
2039.37    0.060   356.57
2039.47    0.061   346.18
2039.57    0.063   336.24
2039.67    0.067   327.20
2039.77    0.072   319.24
2039.87    0.078   312.40
2039.97    0.084   306.55
2040.07    0.091   301.56
2040.17    0.098   297.27
2040.27    0.105   293.55
2040.37    0.111   290.29
2040.47    0.118   287.40
2040.57    0.124   284.81
2040.67    0.130   282.47
2040.77    0.136   280.32
2040.87    0.141   278.33
2040.97    0.145   276.48
2041.07    0.150   274.74
2041.17    0.153   273.08
2041.27    0.157   271.50
2041.37    0.159   269.98
2041.47    0.162   268.51
2041.57    0.164   267.07
2041.67    0.165   265.67
2041.77    0.167   264.29
2041.87    0.168   262.93
2041.97    0.168   261.59
2042.07    0.169   260.25
2042.17    0.169   258.91
2042.27    0.169   257.58

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 14:58:33