Double Star Calculator - Orbit

Orbital Elements for KOH49CA,CB

WDS:	KOH49CA,CB	WDS ID/Discoverer
P:	19.020	Orbital period (years)
a:	0.118	Semi-major axis (arcseconds)
i:	136.3	Inclination (degrees)
Ω:	99.0	Longitude of ascending node (degrees)
T:	2038.690	Epoch of periastron passage (year)
e:	0.322	Eccentricity
ω:	212.5	Longitude of periastron (degrees)
Start-Year:	2015.49	Year
End-Year:	2034.51	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for KOH49CA,CB
Position:	154610.73-280423.2	Epoch-2000 right ascension and declination
WDS-ID:	15462-2804	WDS designation
Discoverer Code:	KOH49CA,CB	Discover designation and components
ADS number:	9775	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	8.0	Magnitude of the primary
V2:	8.7	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 KOH49CA,CB

WDS 6th Orbit including measures of KOH49CA,CB

-- 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 KOH49CA,CB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.147    96.13
--------------------------
2015.49    0.089   359.58
2015.59    0.089   357.31
2015.69    0.088   355.01
2015.79    0.088   352.69
2015.89    0.087   350.34
2015.99    0.087   347.97
2016.09    0.087   345.59
2016.19    0.087   343.19
2016.29    0.086   340.77
2016.39    0.086   338.35
2016.49    0.086   335.92
2016.59    0.086   333.48
2016.69    0.086   331.04
2016.79    0.086   328.60
2016.89    0.086   326.15
2016.99    0.086   323.72
2017.09    0.086   321.28
2017.19    0.086   318.85
2017.29    0.086   316.42
2017.39    0.086   313.99
2017.49    0.086   311.57
2017.59    0.086   309.16
2017.69    0.086   306.74
2017.79    0.086   304.33
2017.89    0.086   301.91
2017.99    0.086   299.50
2018.09    0.086   297.07
2018.19    0.086   294.64
2018.29    0.086   292.19
2018.39    0.085   289.73
2018.49    0.085   287.25
2018.59    0.085   284.74
2018.69    0.084   282.20
2018.79    0.083   279.63
2018.89    0.083   277.01
2018.99    0.082   274.34
2019.09    0.081   271.61
2019.19    0.080   268.82
2019.29    0.079   265.96
2019.39    0.078   263.01
2019.49    0.077   259.98
2019.59    0.075   256.85
2019.69    0.074   253.61
2019.79    0.073   250.27
2019.89    0.071   246.80
2019.99    0.070   243.20
2020.09    0.069   239.48
2020.19    0.068   235.63
2020.29    0.067   231.66
2020.39    0.066   227.56
2020.49    0.065   223.36
2020.59    0.064   219.06
2020.69    0.064   214.68
2020.79    0.064   210.25
2020.89    0.064   205.80
2020.99    0.064   201.34
2021.09    0.064   196.92
2021.19    0.065   192.56
2021.29    0.065   188.28
2021.39    0.066   184.11
2021.49    0.067   180.07
2021.59    0.069   176.17
2021.69    0.070   172.42
2021.79    0.072   168.84
2021.89    0.073   165.41
2021.99    0.075   162.15
2022.09    0.077   159.05
2022.19    0.079   156.09
2022.29    0.081   153.29
2022.39    0.083   150.63
2022.49    0.086   148.10
2022.59    0.088   145.69
2022.69    0.090   143.41
2022.79    0.092   141.23
2022.89    0.094   139.15
2022.99    0.097   137.17
2023.09    0.099   135.28
2023.19    0.101   133.47
2023.29    0.103   131.73
2023.39    0.105   130.07
2023.49    0.107   128.47
2023.59    0.109   126.93
2023.69    0.111   125.44
2023.79    0.113   124.01
2023.89    0.115   122.63
2023.99    0.117   121.29
2024.09    0.119   120.00
2024.19    0.121   118.74
2024.29    0.122   117.52
2024.39    0.124   116.34
2024.49    0.126   115.18
2024.59    0.127   114.06
2024.69    0.129   112.96
2024.79    0.130   111.89
2024.89    0.132   110.84
2024.99    0.133   109.81
2025.09    0.135   108.80
2025.19    0.136   107.81
2025.29    0.137   106.85
2025.39    0.138   105.89
2025.49    0.139   104.95
2025.59    0.140   104.03
2025.69    0.141   103.12
2025.79    0.142   102.22
2025.89    0.143   101.34
2025.99    0.144   100.46
2026.09    0.145    99.59
2026.19    0.145    98.74
2026.29    0.146    97.89
2026.39    0.147    97.05
2026.49    0.147    96.21
2026.59    0.148    95.38
2026.69    0.148    94.56
2026.79    0.149    93.74
2026.89    0.149    92.93
2026.99    0.149    92.12
2027.09    0.150    91.31
2027.19    0.150    90.50
2027.29    0.150    89.70
2027.39    0.150    88.90
2027.49    0.150    88.10
2027.59    0.150    87.30
2027.69    0.150    86.50
2027.79    0.150    85.70
2027.89    0.150    84.90
2027.99    0.150    84.10
2028.09    0.150    83.29
2028.19    0.149    82.49
2028.29    0.149    81.68
2028.39    0.149    80.86
2028.49    0.148    80.05
2028.59    0.148    79.23
2028.69    0.148    78.40
2028.79    0.147    77.57
2028.89    0.147    76.73
2028.99    0.146    75.89
2029.09    0.145    75.04
2029.19    0.145    74.18
2029.29    0.144    73.32
2029.39    0.143    72.45
2029.49    0.143    71.57
2029.59    0.142    70.67
2029.69    0.141    69.77
2029.79    0.140    68.86
2029.89    0.139    67.94
2029.99    0.138    67.00
2030.09    0.138    66.06
2030.19    0.137    65.10
2030.29    0.136    64.12
2030.39    0.135    63.13
2030.49    0.134    62.13
2030.59    0.133    61.11
2030.69    0.131    60.08
2030.79    0.130    59.02
2030.89    0.129    57.95
2030.99    0.128    56.86
2031.09    0.127    55.75
2031.19    0.126    54.62
2031.29    0.125    53.47
2031.39    0.123    52.29
2031.49    0.122    51.10
2031.59    0.121    49.87
2031.69    0.120    48.63
2031.79    0.118    47.35
2031.89    0.117    46.05
2031.99    0.116    44.72
2032.09    0.115    43.36
2032.19    0.113    41.97
2032.29    0.112    40.55
2032.39    0.111    39.10
2032.49    0.110    37.62
2032.59    0.108    36.10
2032.69    0.107    34.54
2032.79    0.106    32.95
2032.89    0.105    31.33
2032.99    0.104    29.66
2033.09    0.102    27.96
2033.19    0.101    26.22
2033.29    0.100    24.44
2033.39    0.099    22.62
2033.49    0.098    20.76
2033.59    0.097    18.86
2033.69    0.096    16.92
2033.79    0.095    14.94
2033.89    0.094    12.92
2033.99    0.093    10.86
2034.09    0.092     8.76
2034.19    0.092     6.63
2034.29    0.091     4.46
2034.39    0.090     2.26
2034.49    0.090     0.03

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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 17:19:28