Double Star Calculator - Orbit

Orbital Elements for HDS17
WDS: HDS17 WDS ID/Discoverer
P: 12.770 Orbital period (years)
a: 0.089 Semi-major axis (arcseconds)
i: 150.1 Inclination (degrees)
Ω: 252.0 Longitude of ascending node (degrees)
T: 2006.410 Epoch of periastron passage (year)
e: 0.527 Eccentricity
ω: 11.0 Longitude of periastron (degrees)
Start-Year: 2018.615 Year
End-Year: 2031.385 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for HDS17
Position: 000828.39+345604.3 Epoch-2000 right ascension and declination
WDS-ID: 00085+3456 WDS designation
Discoverer Code: HDS17 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 375 HD catalog number
Hipparcos number: 689 Hipparcos catalog number
V1: 8.11 Magnitude of the primary
V2: 8.36 Magnitude of the secondary
Equinox: Equinox
Date: 2020 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: Mit2021 Reference

Double Star Orbit for HDS17



WDS 6th Orbit including measures of HDS17

-- 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 HDS17
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.132    53.85
--------------------------
2018.62    0.046   291.26
2018.71    0.045   283.36
2018.81    0.044   275.10
2018.91    0.043   266.51
2019.01    0.043   257.62
2019.11    0.042   248.49
2019.21    0.042   239.15
2019.31    0.042   229.67
2019.41    0.042   220.14
2019.51    0.042   210.69
2019.61    0.043   201.43
2019.71    0.043   192.52
2019.81    0.045   184.06
2019.91    0.046   176.15
2020.01    0.048   168.82
2020.11    0.051   162.10
2020.21    0.053   155.96
2020.31    0.056   150.37
2020.41    0.058   145.28
2020.51    0.061   140.65
2020.61    0.064   136.42
2020.71    0.067   132.55
2020.81    0.069   128.99
2020.91    0.072   125.71
2021.01    0.075   122.68
2021.11    0.078   119.86
2021.21    0.081   117.24
2021.31    0.083   114.78
2021.41    0.086   112.48
2021.51    0.088   110.31
2021.61    0.091   108.26
2021.71    0.093   106.32
2021.81    0.096   104.47
2021.91    0.098   102.71
2022.01    0.100   101.04
2022.11    0.102    99.43
2022.21    0.104    97.89
2022.31    0.106    96.40
2022.41    0.108    94.97
2022.51    0.110    93.59
2022.61    0.112    92.26
2022.71    0.114    90.96
2022.81    0.115    89.71
2022.91    0.117    88.49
2023.01    0.118    87.30
2023.11    0.120    86.14
2023.21    0.121    85.00
2023.31    0.123    83.90
2023.41    0.124    82.81
2023.51    0.125    81.75
2023.61    0.126    80.70
2023.71    0.127    79.68
2023.81    0.128    78.67
2023.91    0.129    77.67
2024.01    0.130    76.69
2024.11    0.131    75.72
2024.21    0.131    74.76
2024.31    0.132    73.81
2024.41    0.133    72.87
2024.51    0.133    71.94
2024.61    0.134    71.02
2024.71    0.134    70.10
2024.81    0.134    69.19
2024.91    0.135    68.28
2025.01    0.135    67.38
2025.11    0.135    66.48
2025.21    0.135    65.58
2025.31    0.135    64.68
2025.41    0.135    63.78
2025.51    0.135    62.88
2025.61    0.135    61.99
2025.71    0.135    61.08
2025.81    0.135    60.18
2025.91    0.135    59.27
2026.01    0.134    58.36
2026.11    0.134    57.45
2026.21    0.133    56.52
2026.31    0.133    55.59
2026.41    0.132    54.66
2026.51    0.132    53.71
2026.61    0.131    52.76
2026.71    0.130    51.79
2026.81    0.129    50.81
2026.91    0.128    49.82
2027.01    0.128    48.82
2027.11    0.127    47.80
2027.21    0.125    46.76
2027.31    0.124    45.71
2027.41    0.123    44.64
2027.51    0.122    43.54
2027.61    0.121    42.43
2027.71    0.119    41.29
2027.81    0.118    40.12
2027.91    0.117    38.92
2028.01    0.115    37.70
2028.11    0.114    36.44
2028.21    0.112    35.14
2028.31    0.110    33.81
2028.41    0.109    32.44
2028.51    0.107    31.02
2028.61    0.105    29.55
2028.71    0.103    28.03
2028.81    0.101    26.45
2028.91    0.099    24.81
2029.01    0.097    23.09
2029.11    0.095    21.31
2029.21    0.093    19.44
2029.31    0.091    17.49
2029.41    0.088    15.43
2029.51    0.086    13.27
2029.61    0.084    10.99
2029.71    0.081     8.58
2029.81    0.079     6.02
2029.91    0.077     3.31
2030.01    0.074     0.42
2030.11    0.072   357.34
2030.21    0.069   354.04
2030.31    0.067   350.50
2030.41    0.065   346.71
2030.51    0.062   342.62
2030.61    0.060   338.22
2030.71    0.058   333.47
2030.81    0.056   328.35
2030.91    0.054   322.84
2031.01    0.052   316.92
2031.11    0.050   310.56
2031.21    0.048   303.78
2031.31    0.047   296.56



 

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 14:35:24


www.stella-vega.de