Double Star Calculator - Orbit

Orbital Elements for KOH83AA,AB
WDS: KOH83AA,AB WDS ID/Discoverer
P: 20.100 Orbital period (years)
a: 0.1405 Semi-major axis (arcseconds)
i: 63.0 Inclination (degrees)
Ω: 21.6 Longitude of ascending node (degrees)
T: 2019.103 Epoch of periastron passage (year)
e: 0.7818 Eccentricity
ω: 276.3 Longitude of periastron (degrees)
Start-Year: 2014.95 Year
End-Year: 2035.05 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for KOH83AA,AB
Position: 091924.66-773836.4 Epoch-2000 right ascension and declination
WDS-ID: 09194-7739 WDS designation
Discoverer Code: KOH83AA,AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 81485 HD catalog number
Hipparcos number: 45734 Hipparcos catalog number
V1: 7.4 k Magnitude of the primary
V2: 7.8 k Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2019 Date of last observation
Orbit grade: 3 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Tok2020c Reference

Double Star Orbit for KOH83AA,AB



WDS 6th Orbit including measures of KOH83AA,AB

-- 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 KOH83AA,AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.109   104.27
--------------------------
2014.95    0.121   165.01
2015.05    0.121   165.69
2015.15    0.121   166.37
2015.25    0.120   167.06
2015.35    0.120   167.76
2015.45    0.119   168.47
2015.55    0.118   169.18
2015.65    0.118   169.89
2015.75    0.117   170.62
2015.85    0.116   171.36
2015.95    0.115   172.10
2016.05    0.115   172.86
2016.15    0.114   173.63
2016.25    0.113   174.41
2016.35    0.112   175.20
2016.45    0.111   176.02
2016.55    0.109   176.84
2016.65    0.108   177.69
2016.75    0.107   178.56
2016.85    0.105   179.45
2016.95    0.104   180.37
2017.05    0.102   181.32
2017.15    0.100   182.30
2017.25    0.098   183.31
2017.35    0.096   184.37
2017.45    0.094   185.48
2017.55    0.092   186.64
2017.65    0.089   187.86
2017.75    0.086   189.17
2017.85    0.083   190.56
2017.95    0.080   192.06
2018.05    0.076   193.70
2018.15    0.072   195.51
2018.25    0.068   197.54
2018.35    0.063   199.87
2018.45    0.058   202.60
2018.55    0.052   205.94
2018.65    0.045   210.22
2018.75    0.037   216.15
2018.85    0.029   225.38
2018.95    0.020   242.41
2019.05    0.014   278.47
2019.15    0.016   326.00
2019.25    0.024   352.43
2019.35    0.032     5.46
2019.45    0.040    13.24
2019.55    0.046    18.65
2019.65    0.052    22.80
2019.75    0.057    26.18
2019.85    0.061    29.06
2019.95    0.065    31.59
2020.05    0.068    33.86
2020.15    0.071    35.94
2020.25    0.073    37.86
2020.35    0.076    39.66
2020.45    0.078    41.36
2020.55    0.080    42.97
2020.65    0.081    44.51
2020.75    0.083    46.00
2020.85    0.084    47.43
2020.95    0.086    48.81
2021.05    0.087    50.15
2021.15    0.088    51.46
2021.25    0.089    52.73
2021.35    0.090    53.98
2021.45    0.091    55.20
2021.55    0.092    56.40
2021.65    0.093    57.58
2021.75    0.093    58.74
2021.85    0.094    59.88
2021.95    0.095    61.00
2022.05    0.095    62.12
2022.15    0.096    63.21
2022.25    0.096    64.30
2022.35    0.097    65.37
2022.45    0.097    66.43
2022.55    0.098    67.48
2022.65    0.098    68.53
2022.75    0.099    69.56
2022.85    0.099    70.58
2022.95    0.099    71.60
2023.05    0.100    72.61
2023.15    0.100    73.61
2023.25    0.100    74.61
2023.35    0.101    75.60
2023.45    0.101    76.58
2023.55    0.101    77.56
2023.65    0.102    78.53
2023.75    0.102    79.49
2023.85    0.102    80.45
2023.95    0.103    81.41
2024.05    0.103    82.36
2024.15    0.103    83.30
2024.25    0.103    84.24
2024.35    0.104    85.18
2024.45    0.104    86.11
2024.55    0.104    87.04
2024.65    0.104    87.96
2024.75    0.105    88.88
2024.85    0.105    89.79
2024.95    0.105    90.70
2025.05    0.105    91.60
2025.15    0.106    92.50
2025.25    0.106    93.40
2025.35    0.106    94.29
2025.45    0.106    95.18
2025.55    0.107    96.07
2025.65    0.107    96.95
2025.75    0.107    97.82
2025.85    0.107    98.69
2025.95    0.107    99.56
2026.05    0.108   100.43
2026.15    0.108   101.29
2026.25    0.108   102.14
2026.35    0.108   103.00
2026.45    0.109   103.84
2026.55    0.109   104.69
2026.65    0.109   105.53
2026.75    0.110   106.36
2026.85    0.110   107.20
2026.95    0.110   108.02
2027.05    0.110   108.85
2027.15    0.111   109.67
2027.25    0.111   110.49
2027.35    0.111   111.30
2027.45    0.111   112.11
2027.55    0.112   112.91
2027.65    0.112   113.71
2027.75    0.112   114.51
2027.85    0.113   115.30
2027.95    0.113   116.09
2028.05    0.113   116.87
2028.15    0.113   117.65
2028.25    0.114   118.43
2028.35    0.114   119.20
2028.45    0.114   119.97
2028.55    0.115   120.74
2028.65    0.115   121.50
2028.75    0.115   122.25
2028.85    0.115   123.01
2028.95    0.116   123.76
2029.05    0.116   124.50
2029.15    0.116   125.25
2029.25    0.117   125.98
2029.35    0.117   126.72
2029.45    0.117   127.45
2029.55    0.117   128.18
2029.65    0.118   128.90
2029.75    0.118   129.62
2029.85    0.118   130.34
2029.95    0.119   131.06
2030.05    0.119   131.77
2030.15    0.119   132.48
2030.25    0.119   133.18
2030.35    0.120   133.88
2030.45    0.120   134.58
2030.55    0.120   135.28
2030.65    0.120   135.97
2030.75    0.121   136.66
2030.85    0.121   137.34
2030.95    0.121   138.03
2031.05    0.121   138.71
2031.15    0.122   139.39
2031.25    0.122   140.06
2031.35    0.122   140.74
2031.45    0.122   141.41
2031.55    0.122   142.08
2031.65    0.123   142.75
2031.75    0.123   143.41
2031.85    0.123   144.07
2031.95    0.123   144.73
2032.05    0.123   145.39
2032.15    0.123   146.05
2032.25    0.124   146.71
2032.35    0.124   147.36
2032.45    0.124   148.01
2032.55    0.124   148.66
2032.65    0.124   149.32
2032.75    0.124   149.96
2032.85    0.124   150.61
2032.95    0.124   151.26
2033.05    0.124   151.91
2033.15    0.124   152.56
2033.25    0.124   153.20
2033.35    0.124   153.85
2033.45    0.124   154.49
2033.55    0.124   155.14
2033.65    0.124   155.79
2033.75    0.124   156.44
2033.85    0.124   157.08
2033.95    0.124   157.73
2034.05    0.124   158.38
2034.15    0.124   159.03
2034.25    0.124   159.69
2034.35    0.123   160.34
2034.45    0.123   161.00
2034.55    0.123   161.66
2034.65    0.123   162.32
2034.75    0.122   162.99
2034.85    0.122   163.66
2034.95    0.122   164.33






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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 16:17:16



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