Double Star Calculator - Orbit

Orbital Elements for HDS2016AB

WDS:	HDS2016AB	WDS ID/Discoverer
P:	18.891	Orbital period (years)
a:	0.348	Semi-major axis (arcseconds)
i:	107.9	Inclination (degrees)
Ω:	285.6	Longitude of ascending node (degrees)
T:	2003.708	Epoch of periastron passage (year)
e:	0.3	Eccentricity
ω:	72.1	Longitude of periastron (degrees)
Start-Year:	2015.5545	Year
End-Year:	2034.4455	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS2016AB
Position:	141858.28-063613.2	Epoch-2000 right ascension and declination
WDS-ID:	14190-0636	WDS designation
Discoverer Code:	HDS2016AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	125354	HD catalog number
Hipparcos number:	69962	Hipparcos catalog number
V1:	9.56	Magnitude of the primary
V2:	10.60	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2022	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:	Tok2023a	Reference

Double Star Orbit for HDS2016AB

WDS 6th Orbit including measures of HDS2016AB

-- 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 HDS2016AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.351   105.29
--------------------------
2015.55    0.147   349.12
2015.65    0.150   346.05
2015.75    0.154   343.11
2015.85    0.157   340.31
2015.95    0.161   337.64
2016.05    0.166   335.11
2016.15    0.170   332.71
2016.25    0.175   330.43
2016.35    0.180   328.28
2016.45    0.185   326.24
2016.55    0.190   324.30
2016.65    0.195   322.47
2016.75    0.200   320.73
2016.85    0.205   319.08
2016.95    0.210   317.51
2017.05    0.216   316.02
2017.15    0.221   314.60
2017.25    0.226   313.25
2017.35    0.231   311.95
2017.45    0.236   310.71
2017.55    0.241   309.52
2017.65    0.246   308.39
2017.75    0.251   307.29
2017.85    0.256   306.23
2017.95    0.260   305.22
2018.05    0.265   304.23
2018.15    0.269   303.28
2018.25    0.273   302.36
2018.35    0.277   301.46
2018.45    0.280   300.59
2018.55    0.284   299.74
2018.65    0.287   298.91
2018.75    0.290   298.09
2018.85    0.293   297.30
2018.95    0.295   296.51
2019.05    0.297   295.74
2019.15    0.299   294.98
2019.25    0.300   294.22
2019.35    0.302   293.48
2019.45    0.302   292.73
2019.55    0.303   291.99
2019.65    0.303   291.26
2019.75    0.303   290.52
2019.85    0.302   289.78
2019.95    0.301   289.03
2020.05    0.299   288.28
2020.15    0.297   287.52
2020.25    0.294   286.74
2020.35    0.291   285.95
2020.45    0.288   285.15
2020.55    0.284   284.32
2020.65    0.279   283.47
2020.75    0.274   282.59
2020.85    0.269   281.67
2020.95    0.263   280.71
2021.05    0.256   279.71
2021.15    0.249   278.65
2021.25    0.241   277.52
2021.35    0.233   276.32
2021.45    0.224   275.02
2021.55    0.215   273.62
2021.65    0.206   272.09
2021.75    0.195   270.41
2021.85    0.185   268.54
2021.95    0.174   266.44
2022.05    0.163   264.06
2022.15    0.152   261.33
2022.25    0.141   258.17
2022.35    0.129   254.45
2022.45    0.118   250.03
2022.55    0.108   244.72
2022.65    0.098   238.31
2022.75    0.089   230.58
2022.85    0.083   221.37
2022.95    0.078   210.77
2023.05    0.076   199.21
2023.15    0.077   187.49
2023.25    0.080   176.45
2023.35    0.087   166.69
2023.45    0.095   158.41
2023.55    0.104   151.53
2023.65    0.114   145.84
2023.75    0.126   141.13
2023.85    0.137   137.19
2023.95    0.148   133.86
2024.05    0.160   131.01
2024.15    0.172   128.55
2024.25    0.183   126.40
2024.35    0.194   124.50
2024.45    0.205   122.80
2024.55    0.216   121.28
2024.65    0.226   119.89
2024.75    0.236   118.63
2024.85    0.246   117.47
2024.95    0.256   116.39
2025.05    0.265   115.39
2025.15    0.273   114.46
2025.25    0.281   113.57
2025.35    0.289   112.74
2025.45    0.296   111.95
2025.55    0.303   111.20
2025.65    0.310   110.48
2025.75    0.316   109.79
2025.85    0.322   109.13
2025.95    0.328   108.49
2026.05    0.333   107.87
2026.15    0.337   107.26
2026.25    0.342   106.68
2026.35    0.346   106.10
2026.45    0.349   105.54
2026.55    0.352   104.99
2026.65    0.355   104.45
2026.75    0.358   103.92
2026.85    0.360   103.40
2026.95    0.362   102.88
2027.05    0.364   102.36
2027.15    0.365   101.85
2027.25    0.366   101.35
2027.35    0.367   100.84
2027.45    0.367   100.34
2027.55    0.367    99.84
2027.65    0.367    99.34
2027.75    0.367    98.84
2027.85    0.366    98.33
2027.95    0.365    97.83
2028.05    0.364    97.32
2028.15    0.363    96.80
2028.25    0.361    96.29
2028.35    0.359    95.77
2028.45    0.357    95.24
2028.55    0.355    94.70
2028.65    0.352    94.16
2028.75    0.350    93.61
2028.85    0.347    93.06
2028.95    0.344    92.49
2029.05    0.340    91.91
2029.15    0.337    91.32
2029.25    0.333    90.72
2029.35    0.330    90.10
2029.45    0.326    89.47
2029.55    0.322    88.82
2029.65    0.317    88.16
2029.75    0.313    87.48
2029.85    0.309    86.78
2029.95    0.304    86.06
2030.05    0.299    85.31
2030.15    0.294    84.55
2030.25    0.289    83.75
2030.35    0.284    82.93
2030.45    0.279    82.08
2030.55    0.274    81.19
2030.65    0.269    80.27
2030.75    0.263    79.31
2030.85    0.258    78.32
2030.95    0.252    77.28
2031.05    0.247    76.19
2031.15    0.241    75.05
2031.25    0.236    73.86
2031.35    0.230    72.61
2031.45    0.224    71.30
2031.55    0.219    69.93
2031.65    0.213    68.47
2031.75    0.208    66.95
2031.85    0.202    65.33
2031.95    0.197    63.63
2032.05    0.191    61.84
2032.15    0.186    59.94
2032.25    0.181    57.93
2032.35    0.176    55.81
2032.45    0.171    53.56
2032.55    0.167    51.19
2032.65    0.162    48.69
2032.75    0.158    46.05
2032.85    0.154    43.28
2032.95    0.151    40.37
2033.05    0.147    37.32
2033.15    0.145    34.14
2033.25    0.142    30.84
2033.35    0.140    27.44
2033.45    0.138    23.94
2033.55    0.137    20.37
2033.65    0.136    16.74
2033.75    0.136    13.10
2033.85    0.136     9.45
2033.95    0.137     5.82
2034.05    0.138     2.25
2034.15    0.140   358.74
2034.25    0.142   355.33
2034.35    0.144   352.02

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 17:04:48