Double Star Calculator - Orbit

Orbital Elements for B2530

WDS:	B2530	WDS ID/Discoverer
P:	34.800	Orbital period (years)
a:	0.428	Semi-major axis (arcseconds)
i:	85.4	Inclination (degrees)
Ω:	330.8	Longitude of ascending node (degrees)
T:	2010.110	Epoch of periastron passage (year)
e:	0.27	Eccentricity
ω:	341.9	Longitude of periastron (degrees)
Start-Year:	2007.6	Year
End-Year:	2042.4	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for B2530
Position:	092746.78-060416.4	Epoch-2000 right ascension and declination
WDS-ID:	09278-0604	WDS designation
Discoverer Code:	B2530	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	81809	HD catalog number
Hipparcos number:	46404	Hipparcos catalog number
V1:	5.63	Magnitude of the primary
V2:	7.52	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2014	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:	Tok2015c	Reference

Double Star Orbit for B2530

WDS 6th Orbit including measures of B2530

-- 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 B2530

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.494   148.72
--------------------------
2007.60    0.153   321.85
2007.70    0.161   322.45
2007.80    0.168   322.99
2007.90    0.176   323.48
2008.00    0.183   323.94
2008.10    0.190   324.36
2008.20    0.197   324.75
2008.30    0.204   325.12
2008.40    0.211   325.46
2008.50    0.217   325.78
2008.60    0.224   326.08
2008.70    0.230   326.36
2008.80    0.236   326.63
2008.90    0.242   326.89
2009.00    0.248   327.13
2009.10    0.253   327.36
2009.20    0.259   327.59
2009.30    0.264   327.80
2009.40    0.269   328.01
2009.50    0.273   328.21
2009.60    0.278   328.40
2009.70    0.282   328.58
2009.80    0.286   328.77
2009.90    0.290   328.94
2010.00    0.293   329.11
2010.10    0.297   329.28
2010.20    0.300   329.45
2010.30    0.303   329.61
2010.40    0.305   329.77
2010.50    0.307   329.92
2010.60    0.309   330.08
2010.70    0.311   330.23
2010.80    0.313   330.38
2010.90    0.314   330.53
2011.00    0.315   330.67
2011.10    0.316   330.82
2011.20    0.316   330.97
2011.30    0.317   331.11
2011.40    0.317   331.26
2011.50    0.316   331.41
2011.60    0.316   331.55
2011.70    0.315   331.70
2011.80    0.314   331.85
2011.90    0.313   332.00
2012.00    0.312   332.15
2012.10    0.310   332.30
2012.20    0.308   332.45
2012.30    0.306   332.61
2012.40    0.303   332.76
2012.50    0.301   332.92
2012.60    0.298   333.09
2012.70    0.295   333.25
2012.80    0.292   333.42
2012.90    0.289   333.60
2013.00    0.285   333.78
2013.10    0.281   333.96
2013.20    0.277   334.15
2013.30    0.273   334.34
2013.40    0.269   334.54
2013.50    0.265   334.74
2013.60    0.260   334.96
2013.70    0.255   335.18
2013.80    0.250   335.40
2013.90    0.245   335.64
2014.00    0.240   335.89
2014.10    0.235   336.15
2014.20    0.230   336.42
2014.30    0.224   336.71
2014.40    0.218   337.00
2014.50    0.213   337.32
2014.60    0.207   337.65
2014.70    0.201   338.00
2014.80    0.195   338.38
2014.90    0.189   338.78
2015.00    0.183   339.20
2015.10    0.176   339.66
2015.20    0.170   340.14
2015.30    0.163   340.67
2015.40    0.157   341.24
2015.50    0.150   341.86
2015.60    0.144   342.54
2015.70    0.137   343.28
2015.80    0.131   344.09
2015.90    0.124   345.00
2016.00    0.117   346.00
2016.10    0.111   347.13
2016.20    0.104   348.40
2016.30    0.097   349.85
2016.40    0.091   351.51
2016.50    0.084   353.43
2016.60    0.078   355.68
2016.70    0.071   358.33
2016.80    0.065     1.49
2016.90    0.059     5.32
2017.00    0.053     9.99
2017.10    0.048    15.73
2017.20    0.043    22.81
2017.30    0.039    31.46
2017.40    0.036    41.73
2017.50    0.035    53.30
2017.60    0.035    65.38
2017.70    0.036    76.98
2017.80    0.039    87.29
2017.90    0.043    95.98
2018.00    0.048   103.10
2018.10    0.053   108.87
2018.20    0.059   113.57
2018.30    0.065   117.41
2018.40    0.071   120.59
2018.50    0.077   123.25
2018.60    0.084   125.50
2018.70    0.091   127.43
2018.80    0.097   129.09
2018.90    0.104   130.53
2019.00    0.111   131.81
2019.10    0.117   132.93
2019.20    0.124   133.93
2019.30    0.131   134.83
2019.40    0.138   135.64
2019.50    0.145   136.38
2019.60    0.151   137.04
2019.70    0.158   137.66
2019.80    0.165   138.22
2019.90    0.171   138.74
2020.00    0.178   139.22
2020.10    0.185   139.66
2020.20    0.191   140.07
2020.30    0.198   140.46
2020.40    0.204   140.82
2020.50    0.211   141.16
2020.60    0.217   141.48
2020.70    0.224   141.78
2020.80    0.230   142.06
2020.90    0.237   142.33
2021.00    0.243   142.59
2021.10    0.249   142.83
2021.20    0.255   143.06
2021.30    0.261   143.28
2021.40    0.267   143.49
2021.50    0.273   143.69
2021.60    0.279   143.88
2021.70    0.285   144.06
2021.80    0.291   144.24
2021.90    0.297   144.41
2022.00    0.303   144.57
2022.10    0.309   144.73
2022.20    0.314   144.88
2022.30    0.320   145.02
2022.40    0.325   145.17
2022.50    0.331   145.30
2022.60    0.336   145.43
2022.70    0.342   145.56
2022.80    0.347   145.68
2022.90    0.352   145.80
2023.00    0.357   145.92
2023.10    0.362   146.03
2023.20    0.367   146.14
2023.30    0.372   146.25
2023.40    0.377   146.35
2023.50    0.382   146.46
2023.60    0.387   146.55
2023.70    0.392   146.65
2023.80    0.396   146.75
2023.90    0.401   146.84
2024.00    0.405   146.93
2024.10    0.410   147.02
2024.20    0.414   147.10
2024.30    0.418   147.19
2024.40    0.423   147.27
2024.50    0.427   147.35
2024.60    0.431   147.43
2024.70    0.435   147.51
2024.80    0.439   147.58
2024.90    0.443   147.66
2025.00    0.447   147.73
2025.10    0.450   147.81
2025.20    0.454   147.88
2025.30    0.457   147.95
2025.40    0.461   148.02
2025.50    0.464   148.09
2025.60    0.468   148.15
2025.70    0.471   148.22
2025.80    0.474   148.29
2025.90    0.477   148.35
2026.00    0.480   148.41
2026.10    0.483   148.48
2026.20    0.486   148.54
2026.30    0.489   148.60
2026.40    0.492   148.66
2026.50    0.494   148.72
2026.60    0.497   148.78
2026.70    0.500   148.84
2026.80    0.502   148.90
2026.90    0.504   148.96
2027.00    0.507   149.01
2027.10    0.509   149.07
2027.20    0.511   149.13
2027.30    0.513   149.18
2027.40    0.515   149.24
2027.50    0.517   149.29
2027.60    0.518   149.35
2027.70    0.520   149.40
2027.80    0.522   149.46
2027.90    0.523   149.51
2028.00    0.525   149.56
2028.10    0.526   149.62
2028.20    0.527   149.67
2028.30    0.529   149.72
2028.40    0.530   149.77
2028.50    0.531   149.83
2028.60    0.532   149.88
2028.70    0.532   149.93
2028.80    0.533   149.98
2028.90    0.534   150.03
2029.00    0.535   150.08
2029.10    0.535   150.13
2029.20    0.535   150.19
2029.30    0.536   150.24
2029.40    0.536   150.29
2029.50    0.536   150.34
2029.60    0.536   150.39
2029.70    0.536   150.44
2029.80    0.536   150.49
2029.90    0.536   150.54
2030.00    0.536   150.59
2030.10    0.535   150.64
2030.20    0.535   150.69
2030.30    0.534   150.75
2030.40    0.534   150.80
2030.50    0.533   150.85
2030.60    0.532   150.90
2030.70    0.531   150.95
2030.80    0.530   151.00
2030.90    0.529   151.06
2031.00    0.528   151.11
2031.10    0.527   151.16
2031.20    0.526   151.21
2031.30    0.524   151.27
2031.40    0.523   151.32
2031.50    0.521   151.37
2031.60    0.519   151.43
2031.70    0.518   151.48
2031.80    0.516   151.54
2031.90    0.514   151.59
2032.00    0.512   151.65
2032.10    0.509   151.70
2032.20    0.507   151.76
2032.30    0.505   151.82
2032.40    0.502   151.88
2032.50    0.500   151.93
2032.60    0.497   151.99
2032.70    0.494   152.05
2032.80    0.492   152.11
2032.90    0.489   152.17
2033.00    0.486   152.24
2033.10    0.483   152.30
2033.20    0.479   152.36
2033.30    0.476   152.43
2033.40    0.473   152.49
2033.50    0.469   152.56
2033.60    0.466   152.62
2033.70    0.462   152.69
2033.80    0.458   152.76
2033.90    0.454   152.83
2034.00    0.450   152.90
2034.10    0.446   152.97
2034.20    0.442   153.05
2034.30    0.438   153.12
2034.40    0.434   153.20
2034.50    0.429   153.28
2034.60    0.425   153.36
2034.70    0.420   153.44
2034.80    0.415   153.53
2034.90    0.411   153.61
2035.00    0.406   153.70
2035.10    0.401   153.79
2035.20    0.396   153.88
2035.30    0.391   153.98
2035.40    0.385   154.07
2035.50    0.380   154.17
2035.60    0.375   154.28
2035.70    0.369   154.38
2035.80    0.363   154.49
2035.90    0.358   154.60
2036.00    0.352   154.72
2036.10    0.346   154.84
2036.20    0.340   154.96
2036.30    0.334   155.09
2036.40    0.328   155.23
2036.50    0.321   155.37
2036.60    0.315   155.51
2036.70    0.309   155.66
2036.80    0.302   155.82
2036.90    0.296   155.98
2037.00    0.289   156.15
2037.10    0.282   156.33
2037.20    0.275   156.52
2037.30    0.268   156.72
2037.40    0.261   156.93
2037.50    0.254   157.15
2037.60    0.247   157.38
2037.70    0.240   157.63
2037.80    0.233   157.89
2037.90    0.225   158.17
2038.00    0.218   158.47
2038.10    0.210   158.79
2038.20    0.203   159.13
2038.30    0.195   159.50
2038.40    0.187   159.90
2038.50    0.180   160.33
2038.60    0.172   160.81
2038.70    0.164   161.33
2038.80    0.156   161.90
2038.90    0.148   162.53
2039.00    0.140   163.24
2039.10    0.132   164.03
2039.20    0.124   164.92
2039.30    0.116   165.94
2039.40    0.108   167.11
2039.50    0.100   168.47
2039.60    0.092   170.06
2039.70    0.084   171.97
2039.80    0.076   174.27
2039.90    0.068   177.10
2040.00    0.060   180.67
2040.10    0.053   185.23
2040.20    0.046   191.23
2040.30    0.040   199.22
2040.40    0.035   209.91
2040.50    0.031   223.75
2040.60    0.029   240.10
2040.70    0.030   256.74
2040.80    0.034   271.22
2040.90    0.039   282.56
2041.00    0.045   291.07
2041.10    0.052   297.43
2041.20    0.059   302.26
2041.30    0.066   306.01
2041.40    0.074   308.99
2041.50    0.082   311.39
2041.60    0.090   313.38
2041.70    0.098   315.04
2041.80    0.106   316.45
2041.90    0.114   317.66
2042.00    0.122   318.72
2042.10    0.130   319.64
2042.20    0.138   320.46
2042.30    0.145   321.20
2042.40    0.153   321.85

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 16:18:28