Double Star Calculator - Orbit

Orbital Elements for HDS1590

WDS:	HDS1590	WDS ID/Discoverer
P:	20.610	Orbital period (years)
a:	0.1613	Semi-major axis (arcseconds)
i:	120.7	Inclination (degrees)
Ω:	254.7	Longitude of ascending node (degrees)
T:	1995.616	Epoch of periastron passage (year)
e:	0.783	Eccentricity
ω:	74.6	Longitude of periastron (degrees)
Start-Year:	2014.695	Year
End-Year:	2035.305	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS1590
Position:	111011.93-112135.9	Epoch-2000 right ascension and declination
WDS-ID:	11102-1122	WDS designation
Discoverer Code:	HDS1590	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	97038	HD catalog number
Hipparcos number:	54580	Hipparcos catalog number
V1:	8.43	Magnitude of the primary
V2:	8.78	Magnitude of the secondary
Equinox:	2000	Equinox
Date:		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:	Tok2016e	Reference

Double Star Orbit for HDS1590

WDS 6th Orbit including measures of HDS1590

-- 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 HDS1590

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.161    13.22
--------------------------
2014.69    0.085   287.04
2014.79    0.084   285.02
2014.89    0.082   282.92
2014.99    0.080   280.71
2015.09    0.078   278.38
2015.19    0.075   275.91
2015.29    0.072   273.27
2015.39    0.069   270.40
2015.49    0.066   267.25
2015.59    0.062   263.72
2015.69    0.057   259.66
2015.79    0.052   254.81
2015.89    0.045   248.68
2015.99    0.038   240.27
2016.09    0.029   227.23
2016.19    0.021   203.80
2016.29    0.018   164.03
2016.39    0.023   127.39
2016.49    0.032   107.30
2016.59    0.041    96.18
2016.69    0.050    89.13
2016.79    0.058    84.16
2016.89    0.065    80.37
2016.99    0.072    77.32
2017.09    0.079    74.79
2017.19    0.084    72.61
2017.29    0.090    70.70
2017.39    0.095    69.00
2017.49    0.099    67.46
2017.59    0.103    66.05
2017.69    0.107    64.75
2017.79    0.111    63.54
2017.89    0.115    62.41
2017.99    0.118    61.34
2018.09    0.121    60.33
2018.19    0.124    59.37
2018.29    0.127    58.45
2018.39    0.129    57.58
2018.49    0.132    56.73
2018.59    0.134    55.92
2018.69    0.137    55.13
2018.79    0.139    54.37
2018.89    0.141    53.63
2018.99    0.143    52.91
2019.09    0.145    52.21
2019.19    0.146    51.53
2019.29    0.148    50.86
2019.39    0.150    50.21
2019.49    0.151    49.57
2019.59    0.152    48.94
2019.69    0.154    48.33
2019.79    0.155    47.72
2019.89    0.156    47.13
2019.99    0.157    46.54
2020.09    0.159    45.96
2020.19    0.160    45.39
2020.29    0.161    44.83
2020.39    0.162    44.27
2020.49    0.162    43.72
2020.59    0.163    43.18
2020.69    0.164    42.64
2020.79    0.165    42.11
2020.89    0.166    41.58
2020.99    0.166    41.06
2021.09    0.167    40.54
2021.19    0.167    40.02
2021.29    0.168    39.51
2021.39    0.168    39.00
2021.49    0.169    38.49
2021.59    0.169    37.98
2021.69    0.170    37.48
2021.79    0.170    36.98
2021.89    0.170    36.49
2021.99    0.171    35.99
2022.09    0.171    35.50
2022.19    0.171    35.00
2022.29    0.172    34.51
2022.39    0.172    34.02
2022.49    0.172    33.53
2022.59    0.172    33.04
2022.69    0.172    32.56
2022.79    0.172    32.07
2022.89    0.172    31.58
2022.99    0.172    31.10
2023.09    0.172    30.61
2023.19    0.172    30.12
2023.29    0.172    29.64
2023.39    0.172    29.15
2023.49    0.172    28.66
2023.59    0.172    28.17
2023.69    0.172    27.68
2023.79    0.172    27.19
2023.89    0.171    26.70
2023.99    0.171    26.21
2024.09    0.171    25.72
2024.19    0.171    25.22
2024.29    0.171    24.73
2024.39    0.170    24.23
2024.49    0.170    23.73
2024.59    0.170    23.23
2024.69    0.169    22.73
2024.79    0.169    22.23
2024.89    0.169    21.72
2024.99    0.168    21.21
2025.09    0.168    20.70
2025.19    0.168    20.19
2025.29    0.167    19.67
2025.39    0.167    19.15
2025.49    0.166    18.63
2025.59    0.166    18.11
2025.69    0.165    17.58
2025.79    0.165    17.05
2025.89    0.164    16.52
2025.99    0.164    15.98
2026.09    0.163    15.44
2026.19    0.163    14.90
2026.29    0.162    14.35
2026.39    0.162    13.80
2026.49    0.161    13.25
2026.59    0.160    12.69
2026.69    0.160    12.13
2026.79    0.159    11.56
2026.89    0.159    10.99
2026.99    0.158    10.41
2027.09    0.157     9.83
2027.19    0.157     9.25
2027.29    0.156     8.66
2027.39    0.155     8.06
2027.49    0.155     7.46
2027.59    0.154     6.86
2027.69    0.153     6.25
2027.79    0.153     5.63
2027.89    0.152     5.01
2027.99    0.151     4.38
2028.09    0.151     3.75
2028.19    0.150     3.11
2028.29    0.149     2.46
2028.39    0.148     1.81
2028.49    0.148     1.15
2028.59    0.147     0.49
2028.69    0.146   359.81
2028.79    0.145   359.13
2028.89    0.145   358.45
2028.99    0.144   357.75
2029.09    0.143   357.05
2029.19    0.142   356.34
2029.29    0.141   355.62
2029.39    0.141   354.90
2029.49    0.140   354.16
2029.59    0.139   353.42
2029.69    0.138   352.67
2029.79    0.137   351.91
2029.89    0.137   351.14
2029.99    0.136   350.36
2030.09    0.135   349.57
2030.19    0.134   348.78
2030.29    0.133   347.97
2030.39    0.132   347.15
2030.49    0.132   346.32
2030.59    0.131   345.48
2030.69    0.130   344.64
2030.79    0.129   343.77
2030.89    0.128   342.90
2030.99    0.127   342.02
2031.09    0.127   341.12
2031.19    0.126   340.22
2031.29    0.125   339.30
2031.39    0.124   338.37
2031.49    0.123   337.42
2031.59    0.122   336.46
2031.69    0.121   335.49
2031.79    0.121   334.51
2031.89    0.120   333.51
2031.99    0.119   332.49
2032.09    0.118   331.47
2032.19    0.117   330.42
2032.29    0.116   329.36
2032.39    0.115   328.29
2032.49    0.115   327.20
2032.59    0.114   326.09
2032.69    0.113   324.97
2032.79    0.112   323.83
2032.89    0.111   322.67
2032.99    0.110   321.49
2033.09    0.109   320.30
2033.19    0.109   319.08
2033.29    0.108   317.85
2033.39    0.107   316.59
2033.49    0.106   315.31
2033.59    0.105   314.02
2033.69    0.104   312.69
2033.79    0.103   311.35
2033.89    0.102   309.98
2033.99    0.101   308.58
2034.09    0.100   307.16
2034.19    0.099   305.71
2034.29    0.098   304.23
2034.39    0.097   302.72
2034.49    0.096   301.17
2034.59    0.095   299.59
2034.69    0.094   297.97
2034.79    0.093   296.31
2034.89    0.091   294.60
2034.99    0.090   292.85
2035.09    0.089   291.04
2035.19    0.087   289.17
2035.29    0.086   287.24

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 16:34:03