Double Star Calculator - Orbit

Orbital Elements for HDS602

WDS:	HDS602	WDS ID/Discoverer
P:	28.017	Orbital period (years)
a:	0.31	Semi-major axis (arcseconds)
i:	118.1	Inclination (degrees)
Ω:	174.8	Longitude of ascending node (degrees)
T:	2021.799	Epoch of periastron passage (year)
e:	0.698	Eccentricity
ω:	81.8	Longitude of periastron (degrees)
Start-Year:	2010.9915	Year
End-Year:	2039.0085	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS602
Position:	044001.28-310432.6	Epoch-2000 right ascension and declination
WDS-ID:	04400-3105	WDS designation
Discoverer Code:	HDS602	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	21733	Hipparcos catalog number
V1:	11.60	Magnitude of the primary
V2:	12.45	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2022	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:	Tok2023a	Reference

Double Star Orbit for HDS602

WDS 6th Orbit including measures of HDS602

-- 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 HDS602

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.278   331.30
--------------------------
2010.99    0.239   259.98
2011.09    0.239   259.25
2011.19    0.239   258.52
2011.29    0.238   257.79
2011.39    0.238   257.05
2011.49    0.238   256.32
2011.59    0.237   255.58
2011.69    0.237   254.84
2011.79    0.237   254.09
2011.89    0.236   253.35
2011.99    0.236   252.60
2012.09    0.236   251.85
2012.19    0.236   251.11
2012.29    0.235   250.35
2012.39    0.235   249.60
2012.49    0.235   248.85
2012.59    0.235   248.09
2012.69    0.234   247.33
2012.79    0.234   246.58
2012.89    0.234   245.82
2012.99    0.234   245.06
2013.09    0.234   244.29
2013.19    0.234   243.53
2013.29    0.233   242.77
2013.39    0.233   242.00
2013.49    0.233   241.23
2013.59    0.233   240.47
2013.69    0.233   239.70
2013.79    0.233   238.93
2013.89    0.233   238.16
2013.99    0.232   237.39
2014.09    0.232   236.62
2014.19    0.232   235.85
2014.29    0.232   235.07
2014.39    0.232   234.30
2014.49    0.232   233.53
2014.59    0.232   232.75
2014.69    0.232   231.98
2014.79    0.232   231.20
2014.89    0.232   230.42
2014.99    0.231   229.65
2015.09    0.231   228.87
2015.19    0.231   228.09
2015.29    0.231   227.31
2015.39    0.231   226.53
2015.49    0.231   225.75
2015.59    0.231   224.97
2015.69    0.231   224.18
2015.79    0.230   223.40
2015.89    0.230   222.61
2015.99    0.230   221.83
2016.09    0.230   221.04
2016.19    0.230   220.25
2016.29    0.229   219.46
2016.39    0.229   218.67
2016.49    0.229   217.87
2016.59    0.229   217.08
2016.69    0.228   216.28
2016.79    0.228   215.48
2016.89    0.228   214.68
2016.99    0.227   213.87
2017.09    0.227   213.06
2017.19    0.226   212.25
2017.29    0.226   211.43
2017.39    0.225   210.61
2017.49    0.225   209.79
2017.59    0.224   208.96
2017.69    0.223   208.13
2017.79    0.222   207.29
2017.89    0.222   206.45
2017.99    0.221   205.59
2018.09    0.220   204.74
2018.19    0.219   203.87
2018.29    0.218   203.00
2018.39    0.217   202.11
2018.49    0.215   201.22
2018.59    0.214   200.32
2018.69    0.213   199.40
2018.79    0.211   198.47
2018.89    0.209   197.53
2018.99    0.208   196.57
2019.09    0.206   195.60
2019.19    0.204   194.60
2019.29    0.201   193.58
2019.39    0.199   192.54
2019.49    0.196   191.48
2019.59    0.194   190.38
2019.69    0.191   189.25
2019.79    0.187   188.09
2019.89    0.184   186.88
2019.99    0.180   185.62
2020.09    0.176   184.31
2020.19    0.172   182.93
2020.29    0.167   181.48
2020.39    0.162   179.94
2020.49    0.156   178.30
2020.59    0.150   176.53
2020.69    0.144   174.60
2020.79    0.137   172.49
2020.89    0.129   170.14
2020.99    0.121   167.48
2021.09    0.112   164.41
2021.19    0.103   160.79
2021.29    0.092   156.41
2021.39    0.082   150.91
2021.49    0.071   143.78
2021.59    0.061   134.17
2021.69    0.052   120.96
2021.79    0.046   103.30
2021.89    0.044    82.47
2021.99    0.048    62.52
2022.09    0.055    46.64
2022.19    0.065    35.04
2022.29    0.076    26.60
2022.39    0.087    20.30
2022.49    0.098    15.42
2022.59    0.109    11.52
2022.69    0.119     8.30
2022.79    0.129     5.58
2022.89    0.138     3.23
2022.99    0.147     1.17
2023.09    0.155   359.33
2023.19    0.162   357.67
2023.29    0.170   356.16
2023.39    0.177   354.78
2023.49    0.183   353.49
2023.59    0.189   352.29
2023.69    0.195   351.16
2023.79    0.201   350.10
2023.89    0.206   349.09
2023.99    0.211   348.13
2024.09    0.215   347.21
2024.19    0.220   346.33
2024.29    0.224   345.49
2024.39    0.228   344.68
2024.49    0.232   343.89
2024.59    0.235   343.13
2024.69    0.239   342.38
2024.79    0.242   341.66
2024.89    0.245   340.96
2024.99    0.248   340.28
2025.09    0.251   339.61
2025.19    0.254   338.96
2025.29    0.256   338.31
2025.39    0.258   337.69
2025.49    0.261   337.07
2025.59    0.263   336.46
2025.69    0.265   335.86
2025.79    0.267   335.27
2025.89    0.269   334.69
2025.99    0.270   334.12
2026.09    0.272   333.55
2026.19    0.274   332.99
2026.29    0.275   332.44
2026.39    0.277   331.89
2026.49    0.278   331.35
2026.59    0.279   330.81
2026.69    0.280   330.28
2026.79    0.281   329.75
2026.89    0.282   329.23
2026.99    0.283   328.71
2027.09    0.284   328.19
2027.19    0.285   327.68
2027.29    0.286   327.17
2027.39    0.287   326.66
2027.49    0.287   326.15
2027.59    0.288   325.65
2027.69    0.288   325.15
2027.79    0.289   324.65
2027.89    0.289   324.15
2027.99    0.290   323.65
2028.09    0.290   323.16
2028.19    0.291   322.66
2028.29    0.291   322.17
2028.39    0.291   321.68
2028.49    0.291   321.19
2028.59    0.292   320.70
2028.69    0.292   320.21
2028.79    0.292   319.72
2028.89    0.292   319.23
2028.99    0.292   318.74
2029.09    0.292   318.25
2029.19    0.292   317.76
2029.29    0.292   317.28
2029.39    0.292   316.79
2029.49    0.292   316.30
2029.59    0.292   315.81
2029.69    0.291   315.32
2029.79    0.291   314.83
2029.89    0.291   314.33
2029.99    0.291   313.84
2030.09    0.290   313.35
2030.19    0.290   312.86
2030.29    0.290   312.36
2030.39    0.290   311.86
2030.49    0.289   311.37
2030.59    0.289   310.87
2030.69    0.288   310.37
2030.79    0.288   309.87
2030.89    0.288   309.37
2030.99    0.287   308.86
2031.09    0.287   308.36
2031.19    0.286   307.85
2031.29    0.286   307.34
2031.39    0.285   306.83
2031.49    0.285   306.32
2031.59    0.284   305.80
2031.69    0.284   305.29
2031.79    0.283   304.77
2031.89    0.283   304.25
2031.99    0.282   303.73
2032.09    0.282   303.20
2032.19    0.281   302.67
2032.29    0.280   302.15
2032.39    0.280   301.61
2032.49    0.279   301.08
2032.59    0.278   300.55
2032.69    0.278   300.01
2032.79    0.277   299.47
2032.89    0.277   298.92
2032.99    0.276   298.38
2033.09    0.275   297.83
2033.19    0.275   297.28
2033.29    0.274   296.72
2033.39    0.273   296.17
2033.49    0.273   295.61
2033.59    0.272   295.05
2033.69    0.271   294.48
2033.79    0.270   293.91
2033.89    0.270   293.34
2033.99    0.269   292.77
2034.09    0.268   292.19
2034.19    0.268   291.61
2034.29    0.267   291.03
2034.39    0.266   290.44
2034.49    0.266   289.85
2034.59    0.265   289.26
2034.69    0.264   288.67
2034.79    0.264   288.07
2034.89    0.263   287.47
2034.99    0.262   286.86
2035.09    0.261   286.26
2035.19    0.261   285.65
2035.29    0.260   285.03
2035.39    0.259   284.41
2035.49    0.259   283.79
2035.59    0.258   283.17
2035.69    0.257   282.54
2035.79    0.257   281.91
2035.89    0.256   281.28
2035.99    0.255   280.64
2036.09    0.255   280.00
2036.19    0.254   279.36
2036.29    0.253   278.71
2036.39    0.253   278.06
2036.49    0.252   277.41
2036.59    0.252   276.75
2036.69    0.251   276.09
2036.79    0.250   275.43
2036.89    0.250   274.77
2036.99    0.249   274.10
2037.09    0.249   273.42
2037.19    0.248   272.75
2037.29    0.248   272.07
2037.39    0.247   271.39
2037.49    0.246   270.70
2037.59    0.246   270.02
2037.69    0.245   269.33
2037.79    0.245   268.63
2037.89    0.244   267.94
2037.99    0.244   267.24
2038.09    0.243   266.54
2038.19    0.243   265.83
2038.29    0.242   265.12
2038.39    0.242   264.41
2038.49    0.242   263.70
2038.59    0.241   262.99
2038.69    0.241   262.27
2038.79    0.240   261.55
2038.89    0.240   260.83
2038.99    0.239   260.10

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 15:28:46