Double Star Calculator - Orbit

Orbital Elements for HU580AB

WDS:	HU580AB	WDS ID/Discoverer
P:	21.944	Orbital period (years)
a:	0.21033	Semi-major axis (arcseconds)
i:	83.608	Inclination (degrees)
Ω:	69.684	Longitude of ascending node (degrees)
T:	2007.217	Epoch of periastron passage (year)
e:	0.0941	Eccentricity
ω:	80.5	Longitude of periastron (degrees)
Start-Year:	2014.0278286206383	Year
End-Year:	2035.9721713793617	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HU580AB
Position:	154133.09+194013.8	Epoch-2000 right ascension and declination
WDS-ID:	15416+1940	WDS designation
Discoverer Code:	HU580AB	Discover designation and components
ADS number:	9744	Aitken Double Star catalog
HD number:	140159	HD catalog number
Hipparcos number:	76852	Hipparcos catalog number
V1:	5.35	Magnitude of the primary
V2:	5.22	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2008	Date of last observation
Orbit grade:	1	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Mut2010b	Reference

Double Star Orbit for HU580AB

WDS 6th Orbit including measures of HU580AB

-- 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 HU580AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.173    73.18
--------------------------
2014.03    0.204   252.23
2014.13    0.202   252.43
2014.23    0.200   252.63
2014.33    0.198   252.83
2014.43    0.196   253.04
2014.53    0.194   253.25
2014.63    0.191   253.47
2014.73    0.189   253.69
2014.83    0.186   253.92
2014.93    0.183   254.15
2015.03    0.180   254.40
2015.13    0.177   254.65
2015.23    0.174   254.91
2015.33    0.171   255.18
2015.43    0.167   255.46
2015.53    0.164   255.75
2015.63    0.160   256.06
2015.73    0.157   256.38
2015.83    0.153   256.72
2015.93    0.149   257.07
2016.03    0.145   257.44
2016.13    0.141   257.83
2016.23    0.137   258.25
2016.33    0.133   258.70
2016.43    0.128   259.17
2016.53    0.124   259.68
2016.63    0.119   260.22
2016.73    0.115   260.81
2016.83    0.110   261.44
2016.93    0.106   262.13
2017.03    0.101   262.89
2017.13    0.096   263.71
2017.23    0.091   264.63
2017.33    0.087   265.64
2017.43    0.082   266.78
2017.53    0.077   268.06
2017.63    0.072   269.51
2017.73    0.067   271.16
2017.83    0.062   273.08
2017.93    0.058   275.31
2018.03    0.053   277.94
2018.13    0.048   281.08
2018.23    0.044   284.87
2018.33    0.040   289.49
2018.43    0.036   295.18
2018.53    0.032   302.21
2018.63    0.029   310.81
2018.73    0.027   321.07
2018.83    0.026   332.71
2018.93    0.026   344.95
2019.03    0.027   356.75
2019.13    0.029     7.27
2019.23    0.032    16.13
2019.33    0.035    23.39
2019.43    0.039    29.28
2019.53    0.043    34.05
2019.63    0.048    37.96
2019.73    0.052    41.19
2019.83    0.057    43.89
2019.93    0.062    46.19
2020.03    0.067    48.15
2020.13    0.071    49.84
2020.23    0.076    51.32
2020.33    0.081    52.63
2020.43    0.086    53.78
2020.53    0.091    54.82
2020.63    0.095    55.75
2020.73    0.100    56.59
2020.83    0.105    57.36
2020.93    0.109    58.06
2021.03    0.114    58.70
2021.13    0.118    59.30
2021.23    0.123    59.85
2021.33    0.127    60.36
2021.43    0.132    60.84
2021.53    0.136    61.30
2021.63    0.140    61.72
2021.73    0.144    62.12
2021.83    0.148    62.50
2021.93    0.152    62.86
2022.03    0.155    63.20
2022.13    0.159    63.52
2022.23    0.163    63.83
2022.33    0.166    64.13
2022.43    0.169    64.42
2022.53    0.172    64.69
2022.63    0.175    64.96
2022.73    0.178    65.22
2022.83    0.181    65.46
2022.93    0.184    65.71
2023.03    0.186    65.94
2023.13    0.189    66.17
2023.23    0.191    66.39
2023.33    0.193    66.61
2023.43    0.195    66.82
2023.53    0.197    67.03
2023.63    0.199    67.24
2023.73    0.200    67.44
2023.83    0.201    67.64
2023.93    0.203    67.84
2024.03    0.204    68.03
2024.13    0.204    68.23
2024.23    0.205    68.42
2024.33    0.206    68.61
2024.43    0.206    68.80
2024.53    0.206    68.99
2024.63    0.206    69.18
2024.73    0.206    69.37
2024.83    0.206    69.56
2024.93    0.205    69.75
2025.03    0.204    69.94
2025.13    0.203    70.13
2025.23    0.202    70.33
2025.33    0.201    70.53
2025.43    0.200    70.73
2025.53    0.198    70.93
2025.63    0.196    71.14
2025.73    0.194    71.35
2025.83    0.192    71.56
2025.93    0.190    71.78
2026.03    0.187    72.01
2026.13    0.185    72.24
2026.23    0.182    72.48
2026.33    0.179    72.73
2026.43    0.175    72.99
2026.53    0.172    73.25
2026.63    0.169    73.53
2026.73    0.165    73.82
2026.83    0.161    74.12
2026.93    0.157    74.44
2027.03    0.153    74.78
2027.13    0.148    75.13
2027.23    0.144    75.51
2027.33    0.139    75.91
2027.43    0.134    76.34
2027.53    0.129    76.80
2027.63    0.124    77.30
2027.73    0.119    77.84
2027.83    0.114    78.43
2027.93    0.109    79.08
2028.03    0.103    79.80
2028.13    0.098    80.60
2028.23    0.092    81.50
2028.33    0.086    82.51
2028.43    0.080    83.68
2028.53    0.074    85.02
2028.63    0.069    86.60
2028.73    0.063    88.47
2028.83    0.057    90.73
2028.93    0.051    93.51
2029.03    0.045    97.01
2029.13    0.040   101.51
2029.23    0.034   107.45
2029.33    0.029   115.44
2029.43    0.025   126.28
2029.53    0.022   140.56
2029.63    0.021   157.67
2029.73    0.022   175.12
2029.83    0.025   190.12
2029.93    0.028   201.68
2030.03    0.033   210.21
2030.13    0.038   216.53
2030.23    0.044   221.30
2030.33    0.050   224.98
2030.43    0.056   227.90
2030.53    0.061   230.26
2030.63    0.067   232.21
2030.73    0.073   233.84
2030.83    0.079   235.23
2030.93    0.085   236.42
2031.03    0.091   237.47
2031.13    0.096   238.39
2031.23    0.102   239.21
2031.33    0.108   239.94
2031.43    0.113   240.60
2031.53    0.118   241.20
2031.63    0.124   241.75
2031.73    0.129   242.26
2031.83    0.134   242.72
2031.93    0.139   243.16
2032.03    0.143   243.56
2032.13    0.148   243.94
2032.23    0.152   244.30
2032.33    0.157   244.63
2032.43    0.161   244.95
2032.53    0.165   245.26
2032.63    0.169   245.54
2032.73    0.173   245.82
2032.83    0.176   246.08
2032.93    0.180   246.34
2033.03    0.183   246.58
2033.13    0.186   246.82
2033.23    0.189   247.05
2033.33    0.192   247.27
2033.43    0.194   247.49
2033.53    0.197   247.70
2033.63    0.199   247.90
2033.73    0.201   248.10
2033.83    0.203   248.30
2033.93    0.205   248.50
2034.03    0.206   248.69
2034.13    0.208   248.87
2034.23    0.209   249.06
2034.33    0.210   249.24
2034.43    0.211   249.42
2034.53    0.211   249.61
2034.63    0.212   249.78
2034.73    0.212   249.96
2034.83    0.213   250.14
2034.93    0.213   250.32
2035.03    0.213   250.50
2035.13    0.212   250.68
2035.23    0.212   250.85
2035.33    0.211   251.03
2035.43    0.211   251.21
2035.53    0.210   251.40
2035.63    0.209   251.58
2035.73    0.207   251.77
2035.83    0.206   251.96
2035.93    0.204   252.15

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 17:18:34