Double Star Calculator - Orbit

Orbital Elements for HU1181

WDS:	HU1181	WDS ID/Discoverer
P:	23.300	Orbital period (years)
a:	0.16	Semi-major axis (arcseconds)
i:	70.0	Inclination (degrees)
Ω:	157.0	Longitude of ascending node (degrees)
T:	1992.000	Epoch of periastron passage (year)
e:	0.26	Eccentricity
ω:	205.0	Longitude of periastron (degrees)
Start-Year:	2013.35	Year
End-Year:	2036.65	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HU1181
Position:	173234.08+344447.6	Epoch-2000 right ascension and declination
WDS-ID:	17326+3445	WDS designation
Discoverer Code:	HU1181	Discover designation and components
ADS number:	10624	Aitken Double Star catalog
HD number:	159304	HD catalog number
Hipparcos number:	85846	Hipparcos catalog number
V1:	8.62	Magnitude of the primary
V2:	9.11	Magnitude of the secondary
Equinox:	2000	Equinox
Date:		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:	Sod1999	Reference

Double Star Orbit for HU1181

WDS 6th Orbit including measures of HU1181

-- 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 HU1181

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.190   164.39
--------------------------
2013.35    0.117   327.79
2013.45    0.118   328.73
2013.55    0.119   329.66
2013.65    0.120   330.58
2013.75    0.121   331.48
2013.85    0.121   332.38
2013.95    0.121   333.27
2014.05    0.121   334.15
2014.15    0.121   335.04
2014.25    0.121   335.93
2014.35    0.121   336.82
2014.45    0.120   337.72
2014.55    0.120   338.62
2014.65    0.119   339.55
2014.75    0.118   340.48
2014.85    0.116   341.44
2014.95    0.115   342.41
2015.05    0.113   343.41
2015.15    0.112   344.45
2015.25    0.110   345.51
2015.35    0.108   346.62
2015.45    0.105   347.77
2015.55    0.103   348.97
2015.65    0.101   350.24
2015.75    0.098   351.56
2015.85    0.095   352.97
2015.95    0.092   354.46
2016.05    0.089   356.04
2016.15    0.086   357.74
2016.25    0.083   359.56
2016.35    0.080     1.52
2016.45    0.077     3.64
2016.55    0.074     5.95
2016.65    0.070     8.47
2016.75    0.067    11.22
2016.85    0.064    14.24
2016.95    0.061    17.56
2017.05    0.058    21.22
2017.15    0.056    25.23
2017.25    0.053    29.64
2017.35    0.051    34.44
2017.45    0.049    39.64
2017.55    0.048    45.21
2017.65    0.047    51.08
2017.75    0.046    57.18
2017.85    0.046    63.39
2017.95    0.046    69.57
2018.05    0.047    75.61
2018.15    0.048    81.39
2018.25    0.050    86.83
2018.35    0.052    91.90
2018.45    0.054    96.55
2018.55    0.057   100.80
2018.65    0.060   104.67
2018.75    0.063   108.17
2018.85    0.066   111.35
2018.95    0.069   114.23
2019.05    0.072   116.85
2019.15    0.076   119.23
2019.25    0.079   121.40
2019.35    0.083   123.39
2019.45    0.086   125.22
2019.55    0.090   126.90
2019.65    0.093   128.46
2019.75    0.097   129.90
2019.85    0.100   131.24
2019.95    0.104   132.49
2020.05    0.107   133.66
2020.15    0.111   134.76
2020.25    0.114   135.79
2020.35    0.118   136.76
2020.45    0.121   137.68
2020.55    0.124   138.56
2020.65    0.127   139.39
2020.75    0.130   140.17
2020.85    0.133   140.93
2020.95    0.136   141.64
2021.05    0.139   142.33
2021.15    0.142   142.99
2021.25    0.145   143.63
2021.35    0.148   144.24
2021.45    0.150   144.83
2021.55    0.153   145.40
2021.65    0.155   145.95
2021.75    0.158   146.48
2021.85    0.160   147.00
2021.95    0.162   147.50
2022.05    0.165   147.99
2022.15    0.167   148.46
2022.25    0.169   148.93
2022.35    0.171   149.38
2022.45    0.173   149.82
2022.55    0.175   150.26
2022.65    0.176   150.68
2022.75    0.178   151.10
2022.85    0.180   151.51
2022.95    0.181   151.91
2023.05    0.183   152.30
2023.15    0.184   152.69
2023.25    0.185   153.07
2023.35    0.187   153.45
2023.45    0.188   153.82
2023.55    0.189   154.19
2023.65    0.190   154.55
2023.75    0.191   154.91
2023.85    0.192   155.27
2023.95    0.193   155.62
2024.05    0.193   155.97
2024.15    0.194   156.32
2024.25    0.195   156.67
2024.35    0.195   157.01
2024.45    0.196   157.35
2024.55    0.196   157.69
2024.65    0.196   158.03
2024.75    0.197   158.37
2024.85    0.197   158.71
2024.95    0.197   159.05
2025.05    0.197   159.38
2025.15    0.197   159.72
2025.25    0.197   160.06
2025.35    0.197   160.40
2025.45    0.196   160.73
2025.55    0.196   161.07
2025.65    0.196   161.41
2025.75    0.195   161.76
2025.85    0.195   162.10
2025.95    0.194   162.44
2026.05    0.194   162.79
2026.15    0.193   163.14
2026.25    0.192   163.50
2026.35    0.191   163.85
2026.45    0.190   164.21
2026.55    0.189   164.57
2026.65    0.188   164.94
2026.75    0.187   165.31
2026.85    0.186   165.68
2026.95    0.185   166.06
2027.05    0.184   166.45
2027.15    0.182   166.84
2027.25    0.181   167.23
2027.35    0.180   167.63
2027.45    0.178   168.04
2027.55    0.177   168.45
2027.65    0.175   168.88
2027.75    0.173   169.31
2027.85    0.172   169.75
2027.95    0.170   170.19
2028.05    0.168   170.65
2028.15    0.166   171.12
2028.25    0.164   171.59
2028.35    0.162   172.08
2028.45    0.160   172.58
2028.55    0.158   173.10
2028.65    0.156   173.63
2028.75    0.154   174.17
2028.85    0.152   174.72
2028.95    0.150   175.30
2029.05    0.148   175.89
2029.15    0.145   176.50
2029.25    0.143   177.13
2029.35    0.140   177.78
2029.45    0.138   178.45
2029.55    0.136   179.15
2029.65    0.133   179.88
2029.75    0.131   180.63
2029.85    0.128   181.41
2029.95    0.125   182.22
2030.05    0.123   183.07
2030.15    0.120   183.96
2030.25    0.117   184.88
2030.35    0.115   185.85
2030.45    0.112   186.87
2030.55    0.109   187.93
2030.65    0.107   189.05
2030.75    0.104   190.23
2030.85    0.101   191.47
2030.95    0.099   192.77
2031.05    0.096   194.15
2031.15    0.093   195.62
2031.25    0.091   197.16
2031.35    0.088   198.80
2031.45    0.085   200.55
2031.55    0.083   202.40
2031.65    0.080   204.36
2031.75    0.078   206.46
2031.85    0.075   208.68
2031.95    0.073   211.05
2032.05    0.071   213.57
2032.15    0.069   216.25
2032.25    0.067   219.09
2032.35    0.065   222.10
2032.45    0.063   225.27
2032.55    0.062   228.61
2032.65    0.060   232.10
2032.75    0.059   235.74
2032.85    0.058   239.51
2032.95    0.058   243.38
2033.05    0.057   247.33
2033.15    0.057   251.33
2033.25    0.057   255.34
2033.35    0.057   259.33
2033.45    0.058   263.27
2033.55    0.059   267.13
2033.65    0.060   270.87
2033.75    0.061   274.49
2033.85    0.062   277.96
2033.95    0.064   281.28
2034.05    0.065   284.43
2034.15    0.067   287.42
2034.25    0.069   290.25
2034.35    0.071   292.93
2034.45    0.073   295.45
2034.55    0.075   297.82
2034.65    0.077   300.06
2034.75    0.080   302.18
2034.85    0.082   304.17
2034.95    0.084   306.06
2035.05    0.087   307.85
2035.15    0.089   309.54
2035.25    0.091   311.14
2035.35    0.094   312.67
2035.45    0.096   314.12
2035.55    0.098   315.51
2035.65    0.100   316.84
2035.75    0.102   318.11
2035.85    0.104   319.33
2035.95    0.106   320.51
2036.05    0.108   321.64
2036.15    0.110   322.74
2036.25    0.112   323.81
2036.35    0.113   324.84
2036.45    0.115   325.85
2036.55    0.116   326.83
2036.65    0.117   327.79

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 17:39:54