Double Star Calculator - Orbit

Orbital Elements for RST4739

WDS:	RST4739	WDS ID/Discoverer
P:	38.230	Orbital period (years)
a:	0.226	Semi-major axis (arcseconds)
i:	155.6	Inclination (degrees)
Ω:	50.1	Longitude of ascending node (degrees)
T:	2027.970	Epoch of periastron passage (year)
e:	0.551	Eccentricity
ω:	275.8	Longitude of periastron (degrees)
Start-Year:	2005.885	Year
End-Year:	2044.115	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for RST4739
Position:	001205.19-583129.3	Epoch-2000 right ascension and declination
WDS-ID:	00121-5832	WDS designation
Discoverer Code:	RST4739	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	791	HD catalog number
Hipparcos number:	975	Hipparcos catalog number
V1:	8.44	Magnitude of the primary
V2:	8.61	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2018	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:	Cve2020	Reference

Double Star Orbit for RST4739

WDS 6th Orbit including measures of RST4739

-- 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 RST4739

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.112   188.77
--------------------------
2005.88    0.314   324.51
2005.98    0.314   324.14
2006.08    0.314   323.77
2006.18    0.315   323.40
2006.28    0.315   323.03
2006.38    0.315   322.66
2006.48    0.316   322.30
2006.58    0.316   321.93
2006.68    0.316   321.56
2006.78    0.316   321.20
2006.88    0.317   320.83
2006.98    0.317   320.47
2007.08    0.317   320.11
2007.18    0.317   319.74
2007.28    0.318   319.38
2007.38    0.318   319.02
2007.48    0.318   318.66
2007.58    0.318   318.30
2007.68    0.318   317.94
2007.78    0.319   317.58
2007.88    0.319   317.22
2007.98    0.319   316.86
2008.08    0.319   316.50
2008.18    0.319   316.14
2008.28    0.319   315.78
2008.38    0.319   315.42
2008.48    0.319   315.06
2008.58    0.319   314.70
2008.68    0.319   314.34
2008.78    0.320   313.99
2008.88    0.320   313.63
2008.98    0.320   313.27
2009.08    0.320   312.91
2009.18    0.320   312.55
2009.28    0.320   312.20
2009.38    0.320   311.84
2009.48    0.320   311.48
2009.58    0.320   311.12
2009.68    0.319   310.77
2009.78    0.319   310.41
2009.88    0.319   310.05
2009.98    0.319   309.69
2010.08    0.319   309.33
2010.18    0.319   308.97
2010.28    0.319   308.61
2010.38    0.319   308.25
2010.48    0.319   307.89
2010.58    0.319   307.53
2010.68    0.318   307.17
2010.78    0.318   306.81
2010.88    0.318   306.45
2010.98    0.318   306.09
2011.08    0.318   305.73
2011.18    0.318   305.37
2011.28    0.317   305.00
2011.38    0.317   304.64
2011.48    0.317   304.28
2011.58    0.317   303.91
2011.68    0.316   303.55
2011.78    0.316   303.18
2011.88    0.316   302.82
2011.98    0.315   302.45
2012.08    0.315   302.08
2012.18    0.315   301.71
2012.28    0.314   301.34
2012.38    0.314   300.97
2012.48    0.314   300.60
2012.58    0.313   300.23
2012.68    0.313   299.86
2012.78    0.313   299.49
2012.88    0.312   299.11
2012.98    0.312   298.74
2013.08    0.311   298.36
2013.18    0.311   297.98
2013.28    0.311   297.60
2013.38    0.310   297.22
2013.48    0.310   296.84
2013.58    0.309   296.46
2013.68    0.309   296.08
2013.78    0.308   295.69
2013.88    0.308   295.31
2013.98    0.307   294.92
2014.08    0.307   294.53
2014.18    0.306   294.14
2014.28    0.305   293.75
2014.38    0.305   293.36
2014.48    0.304   292.96
2014.58    0.304   292.57
2014.68    0.303   292.17
2014.78    0.302   291.77
2014.88    0.302   291.37
2014.98    0.301   290.97
2015.08    0.300   290.57
2015.18    0.300   290.16
2015.28    0.299   289.75
2015.38    0.298   289.34
2015.48    0.298   288.93
2015.58    0.297   288.52
2015.68    0.296   288.10
2015.78    0.295   287.68
2015.88    0.295   287.26
2015.98    0.294   286.84
2016.08    0.293   286.42
2016.18    0.292   285.99
2016.28    0.291   285.56
2016.38    0.291   285.13
2016.48    0.290   284.69
2016.58    0.289   284.26
2016.68    0.288   283.82
2016.78    0.287   283.38
2016.88    0.286   282.93
2016.98    0.285   282.48
2017.08    0.284   282.03
2017.18    0.283   281.58
2017.28    0.282   281.12
2017.38    0.281   280.66
2017.48    0.280   280.20
2017.58    0.279   279.73
2017.68    0.278   279.26
2017.78    0.277   278.79
2017.88    0.276   278.31
2017.98    0.275   277.83
2018.08    0.274   277.35
2018.18    0.273   276.86
2018.28    0.272   276.36
2018.38    0.271   275.87
2018.48    0.270   275.37
2018.58    0.268   274.86
2018.68    0.267   274.35
2018.78    0.266   273.84
2018.88    0.265   273.32
2018.98    0.264   272.79
2019.08    0.262   272.27
2019.18    0.261   271.73
2019.28    0.260   271.19
2019.38    0.258   270.65
2019.48    0.257   270.10
2019.58    0.256   269.54
2019.68    0.254   268.98
2019.78    0.253   268.41
2019.88    0.252   267.84
2019.98    0.250   267.26
2020.08    0.249   266.67
2020.18    0.247   266.08
2020.28    0.246   265.48
2020.38    0.244   264.87
2020.48    0.243   264.25
2020.58    0.241   263.63
2020.68    0.240   263.00
2020.78    0.238   262.36
2020.88    0.237   261.71
2020.98    0.235   261.06
2021.08    0.233   260.39
2021.18    0.232   259.71
2021.28    0.230   259.03
2021.38    0.228   258.33
2021.48    0.227   257.63
2021.58    0.225   256.91
2021.68    0.223   256.18
2021.78    0.221   255.44
2021.88    0.220   254.69
2021.98    0.218   253.93
2022.08    0.216   253.15
2022.18    0.214   252.36
2022.28    0.212   251.56
2022.38    0.210   250.74
2022.48    0.208   249.90
2022.58    0.206   249.05
2022.68    0.204   248.19
2022.78    0.202   247.30
2022.88    0.200   246.40
2022.98    0.198   245.48
2023.08    0.196   244.54
2023.18    0.194   243.58
2023.28    0.192   242.60
2023.38    0.190   241.60
2023.48    0.188   240.57
2023.58    0.185   239.52
2023.68    0.183   238.44
2023.78    0.181   237.33
2023.88    0.178   236.20
2023.98    0.176   235.04
2024.08    0.174   233.84
2024.18    0.171   232.62
2024.28    0.169   231.36
2024.38    0.167   230.06
2024.48    0.164   228.72
2024.58    0.162   227.34
2024.68    0.159   225.92
2024.78    0.157   224.46
2024.88    0.154   222.94
2024.98    0.152   221.38
2025.08    0.149   219.76
2025.18    0.146   218.08
2025.28    0.144   216.34
2025.38    0.141   214.54
2025.48    0.139   212.67
2025.58    0.136   210.73
2025.68    0.133   208.71
2025.78    0.131   206.61
2025.88    0.128   204.42
2025.98    0.125   202.15
2026.08    0.123   199.77
2026.18    0.120   197.30
2026.28    0.118   194.71
2026.38    0.115   192.02
2026.48    0.113   189.21
2026.58    0.110   186.27
2026.68    0.108   183.21
2026.78    0.106   180.02
2026.88    0.104   176.71
2026.98    0.102   173.26
2027.08    0.100   169.68
2027.18    0.099   165.98
2027.28    0.097   162.15
2027.38    0.096   158.22
2027.48    0.095   154.18
2027.58    0.094   150.06
2027.68    0.093   145.87
2027.78    0.093   141.63
2027.88    0.092   137.37
2027.98    0.093   133.10
2028.08    0.093   128.84
2028.18    0.093   124.62
2028.28    0.094   120.45
2028.38    0.095   116.36
2028.48    0.096   112.36
2028.58    0.098   108.46
2028.68    0.099   104.68
2028.78    0.101   101.01
2028.88    0.103    97.47
2028.98    0.104    94.06
2029.08    0.107    90.78
2029.18    0.109    87.62
2029.28    0.111    84.59
2029.38    0.113    81.67
2029.48    0.116    78.88
2029.58    0.118    76.20
2029.68    0.120    73.62
2029.78    0.123    71.15
2029.88    0.125    68.77
2029.98    0.128    66.49
2030.08    0.130    64.30
2030.18    0.133    62.19
2030.28    0.135    60.15
2030.38    0.138    58.19
2030.48    0.140    56.30
2030.58    0.143    54.48
2030.68    0.145    52.72
2030.78    0.148    51.01
2030.88    0.150    49.37
2030.98    0.153    47.77
2031.08    0.155    46.23
2031.18    0.157    44.73
2031.28    0.160    43.27
2031.38    0.162    41.86
2031.48    0.164    40.49
2031.58    0.167    39.16
2031.68    0.169    37.86
2031.78    0.171    36.60
2031.88    0.173    35.37
2031.98    0.176    34.17
2032.08    0.178    33.00
2032.18    0.180    31.85
2032.28    0.182    30.74
2032.38    0.184    29.65
2032.48    0.186    28.58
2032.58    0.188    27.54
2032.68    0.190    26.52
2032.78    0.192    25.53
2032.88    0.194    24.55
2032.98    0.196    23.59
2033.08    0.198    22.65
2033.18    0.200    21.73
2033.28    0.202    20.83
2033.38    0.204    19.94
2033.48    0.206    19.07
2033.58    0.208    18.22
2033.68    0.210    17.38
2033.78    0.211    16.55
2033.88    0.213    15.74
2033.98    0.215    14.94
2034.08    0.217    14.16
2034.18    0.218    13.39
2034.28    0.220    12.62
2034.38    0.222    11.88
2034.48    0.223    11.14
2034.58    0.225    10.41
2034.68    0.227     9.69
2034.78    0.228     8.99
2034.88    0.230     8.29
2034.98    0.231     7.60
2035.08    0.233     6.92
2035.18    0.234     6.25
2035.28    0.236     5.59
2035.38    0.237     4.94
2035.48    0.239     4.30
2035.58    0.240     3.66
2035.68    0.242     3.03
2035.78    0.243     2.41
2035.88    0.245     1.79
2035.98    0.246     1.19
2036.08    0.247     0.59
2036.18    0.249   359.99
2036.28    0.250   359.40
2036.38    0.251   358.82
2036.48    0.253   358.25
2036.58    0.254   357.68
2036.68    0.255   357.12
2036.78    0.257   356.56
2036.88    0.258   356.00
2036.98    0.259   355.46
2037.08    0.260   354.92
2037.18    0.261   354.38
2037.28    0.263   353.85
2037.38    0.264   353.32
2037.48    0.265   352.80
2037.58    0.266   352.28
2037.68    0.267   351.76
2037.78    0.268   351.25
2037.88    0.270   350.75
2037.98    0.271   350.25
2038.08    0.272   349.75
2038.18    0.273   349.26
2038.28    0.274   348.77
2038.38    0.275   348.28
2038.48    0.276   347.80
2038.58    0.277   347.32
2038.68    0.278   346.85
2038.78    0.279   346.37
2038.88    0.280   345.91
2038.98    0.281   345.44
2039.08    0.282   344.98
2039.18    0.283   344.52
2039.28    0.284   344.06
2039.38    0.284   343.61
2039.48    0.285   343.16
2039.58    0.286   342.71
2039.68    0.287   342.27
2039.78    0.288   341.82
2039.88    0.289   341.39
2039.98    0.290   340.95
2040.08    0.290   340.51
2040.18    0.291   340.08
2040.28    0.292   339.65
2040.38    0.293   339.22
2040.48    0.294   338.80
2040.58    0.294   338.38
2040.68    0.295   337.96
2040.78    0.296   337.54
2040.88    0.297   337.12
2040.98    0.297   336.71
2041.08    0.298   336.29
2041.18    0.299   335.88
2041.28    0.299   335.47
2041.38    0.300   335.07
2041.48    0.301   334.66
2041.58    0.301   334.26
2041.68    0.302   333.85
2041.78    0.303   333.45
2041.88    0.303   333.06
2041.98    0.304   332.66
2042.08    0.304   332.26
2042.18    0.305   331.87
2042.28    0.305   331.48
2042.38    0.306   331.09
2042.48    0.307   330.70
2042.58    0.307   330.31
2042.68    0.308   329.92
2042.78    0.308   329.53
2042.88    0.309   329.15
2042.98    0.309   328.77
2043.08    0.310   328.39
2043.18    0.310   328.00
2043.28    0.310   327.62
2043.38    0.311   327.25
2043.48    0.311   326.87
2043.58    0.312   326.49
2043.68    0.312   326.12
2043.78    0.313   325.74
2043.88    0.313   325.37
2043.98    0.313   324.99
2044.08    0.314   324.62

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 14:36:32