Double Star Calculator - Orbit

Orbital Elements for HDS1196AB
WDS: HDS1196AB WDS ID/Discoverer
P: 20.990 Orbital period (years)
a: 0.078 Semi-major axis (arcseconds)
i: 115.5 Inclination (degrees)
Ω: 10.8 Longitude of ascending node (degrees)
T: 2023.603 Epoch of periastron passage (year)
e: 0.292 Eccentricity
ω: 167.4 Longitude of periastron (degrees)
Start-Year: 2014.505 Year
End-Year: 2035.495 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HDS1196AB
Position: 082259.85-710209.5 Epoch-2000 right ascension and declination
WDS-ID: 08230-7102 WDS designation
Discoverer Code: HDS1196AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 71591 HD catalog number
Hipparcos number: 41093 Hipparcos catalog number
V1: 9.36 Magnitude of the primary
V2: 10.13 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2023 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: Tok2023a Reference

Double Star Orbit for HDS1196AB



WDS 6th Orbit including measures of HDS1196AB

-- 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 HDS1196AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.037   143.05
--------------------------
2014.51    0.100    10.27
2014.61    0.099     9.83
2014.70    0.099     9.40
2014.80    0.099     8.96
2014.90    0.098     8.52
2015.00    0.098     8.07
2015.10    0.098     7.62
2015.20    0.097     7.17
2015.30    0.097     6.71
2015.40    0.096     6.25
2015.50    0.096     5.79
2015.60    0.095     5.31
2015.70    0.094     4.84
2015.80    0.094     4.35
2015.90    0.093     3.86
2016.00    0.092     3.36
2016.10    0.092     2.85
2016.20    0.091     2.33
2016.30    0.090     1.81
2016.40    0.089     1.27
2016.50    0.088     0.72
2016.60    0.087     0.16
2016.70    0.086   359.59
2016.80    0.085   359.00
2016.90    0.084   358.40
2017.00    0.083   357.78
2017.10    0.082   357.14
2017.20    0.080   356.49
2017.30    0.079   355.81
2017.40    0.078   355.12
2017.50    0.077   354.40
2017.60    0.075   353.66
2017.70    0.074   352.89
2017.80    0.073   352.09
2017.90    0.071   351.26
2018.00    0.070   350.39
2018.10    0.068   349.49
2018.20    0.067   348.54
2018.30    0.065   347.56
2018.40    0.064   346.52
2018.50    0.062   345.43
2018.60    0.060   344.29
2018.70    0.059   343.08
2018.80    0.057   341.80
2018.90    0.055   340.44
2019.00    0.054   339.00
2019.10    0.052   337.47
2019.20    0.050   335.84
2019.30    0.049   334.09
2019.40    0.047   332.22
2019.50    0.045   330.21
2019.60    0.044   328.05
2019.70    0.042   325.72
2019.80    0.041   323.20
2019.90    0.039   320.48
2020.00    0.037   317.54
2020.10    0.036   314.36
2020.20    0.035   310.93
2020.30    0.033   307.23
2020.40    0.032   303.25
2020.50    0.031   298.99
2020.60    0.030   294.48
2020.70    0.030   289.72
2020.80    0.029   284.75
2020.90    0.029   279.64
2021.00    0.029   274.43
2021.10    0.029   269.20
2021.20    0.029   264.01
2021.30    0.029   258.95
2021.40    0.030   254.05
2021.50    0.031   249.37
2021.60    0.032   244.94
2021.70    0.033   240.77
2021.80    0.034   236.86
2021.90    0.035   233.21
2022.00    0.036   229.82
2022.10    0.038   226.65
2022.20    0.039   223.71
2022.30    0.040   220.96
2022.40    0.042   218.40
2022.50    0.043   215.99
2022.60    0.044   213.73
2022.70    0.046   211.60
2022.80    0.047   209.59
2022.90    0.048   207.68
2023.00    0.049   205.86
2023.10    0.050   204.11
2023.20    0.051   202.44
2023.30    0.052   200.83
2023.40    0.053   199.27
2023.50    0.054   197.75
2023.60    0.054   196.27
2023.70    0.055   194.82
2023.80    0.055   193.39
2023.90    0.055   191.98
2024.00    0.056   190.58
2024.10    0.056   189.19
2024.20    0.056   187.81
2024.30    0.055   186.41
2024.40    0.055   185.01
2024.50    0.055   183.60
2024.60    0.055   182.17
2024.70    0.054   180.71
2024.80    0.053   179.23
2024.90    0.053   177.70
2025.00    0.052   176.14
2025.10    0.051   174.53
2025.20    0.050   172.87
2025.30    0.049   171.15
2025.40    0.049   169.36
2025.50    0.047   167.49
2025.60    0.046   165.54
2025.70    0.045   163.50
2025.80    0.044   161.37
2025.90    0.043   159.12
2026.00    0.042   156.76
2026.10    0.041   154.27
2026.20    0.040   151.64
2026.30    0.039   148.87
2026.40    0.038   145.96
2026.50    0.037   142.89
2026.60    0.036   139.67
2026.70    0.035   136.29
2026.80    0.035   132.76
2026.90    0.034   129.09
2027.00    0.033   125.29
2027.10    0.033   121.38
2027.20    0.033   117.39
2027.30    0.033   113.34
2027.40    0.032   109.27
2027.50    0.033   105.20
2027.60    0.033   101.17
2027.70    0.033    97.21
2027.80    0.034    93.35
2027.90    0.034    89.61
2028.00    0.035    86.01
2028.10    0.036    82.56
2028.20    0.037    79.27
2028.30    0.038    76.14
2028.40    0.039    73.18
2028.50    0.040    70.39
2028.60    0.041    67.75
2028.70    0.042    65.26
2028.80    0.043    62.92
2028.90    0.045    60.71
2029.00    0.046    58.63
2029.10    0.048    56.67
2029.20    0.049    54.82
2029.30    0.050    53.07
2029.40    0.052    51.42
2029.50    0.053    49.86
2029.60    0.055    48.37
2029.70    0.056    46.97
2029.80    0.057    45.64
2029.90    0.059    44.37
2030.00    0.060    43.16
2030.10    0.062    42.00
2030.20    0.063    40.90
2030.30    0.065    39.84
2030.40    0.066    38.83
2030.50    0.067    37.86
2030.60    0.069    36.93
2030.70    0.070    36.04
2030.80    0.071    35.17
2030.90    0.073    34.34
2031.00    0.074    33.54
2031.10    0.075    32.76
2031.20    0.076    32.01
2031.30    0.077    31.28
2031.40    0.079    30.58
2031.50    0.080    29.89
2031.60    0.081    29.23
2031.70    0.082    28.58
2031.80    0.083    27.95
2031.90    0.084    27.33
2032.00    0.085    26.73
2032.10    0.086    26.14
2032.20    0.087    25.57
2032.30    0.088    25.00
2032.40    0.089    24.45
2032.50    0.090    23.91
2032.60    0.090    23.38
2032.70    0.091    22.86
2032.80    0.092    22.35
2032.90    0.093    21.85
2033.00    0.093    21.35
2033.10    0.094    20.86
2033.20    0.095    20.38
2033.30    0.095    19.90
2033.40    0.096    19.43
2033.50    0.096    18.97
2033.60    0.097    18.51
2033.70    0.097    18.05
2033.80    0.098    17.60
2033.90    0.098    17.15
2034.00    0.099    16.71
2034.10    0.099    16.27
2034.20    0.099    15.83
2034.30    0.099    15.39
2034.40    0.100    14.96
2034.50    0.100    14.52
2034.60    0.100    14.09
2034.70    0.100    13.66
2034.80    0.100    13.23
2034.90    0.100    12.80
2035.00    0.100    12.38
2035.10    0.100    11.95
2035.20    0.100    11.52
2035.30    0.100    11.09
2035.40    0.100    10.66






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 16:06:46



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