Double Star Calculator - Orbit

Orbital Elements for CHR203

WDS:	CHR203	WDS ID/Discoverer
P:	13.560	Orbital period (years)
a:	0.0848	Semi-major axis (arcseconds)
i:	160.0	Inclination (degrees)
Ω:	135.9	Longitude of ascending node (degrees)
T:	1993.650	Epoch of periastron passage (year)
e:	0.947	Eccentricity
ω:	50.0	Longitude of periastron (degrees)
Start-Year:	2018.22	Year
End-Year:	2031.78	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for CHR203
Position:	053630.18+255624.4	Epoch-2000 right ascension and declination
WDS-ID:	05365+2556	WDS designation
Discoverer Code:	CHR203	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	36994	HD catalog number
Hipparcos number:	26322	Hipparcos catalog number
V1:	6.5	Magnitude of the primary
V2:	8.3	Magnitude of the secondary
Equinox:		Equinox
Date:		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:	Tok2020e	Reference

Double Star Orbit for CHR203

WDS 6th Orbit including measures of CHR203

-- 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 CHR203

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.157   270.06
--------------------------
2018.22    0.115   255.72
2018.32    0.113   255.27
2018.42    0.110   254.80
2018.52    0.108   254.32
2018.62    0.105   253.81
2018.72    0.102   253.27
2018.82    0.100   252.71
2018.92    0.097   252.11
2019.02    0.094   251.47
2019.12    0.091   250.79
2019.22    0.087   250.06
2019.32    0.084   249.28
2019.42    0.081   248.43
2019.52    0.077   247.50
2019.62    0.073   246.47
2019.72    0.069   245.33
2019.82    0.065   244.04
2019.92    0.060   242.57
2020.02    0.056   240.86
2020.12    0.051   238.82
2020.22    0.045   236.33
2020.32    0.040   233.13
2020.42    0.033   228.78
2020.52    0.026   222.26
2020.62    0.018   210.41
2020.72    0.009   174.74
2020.82    0.009   353.57
2020.92    0.019   320.22
2021.02    0.028   309.72
2021.12    0.035   303.93
2021.22    0.042   300.06
2021.32    0.048   297.20
2021.42    0.053   294.95
2021.52    0.058   293.11
2021.62    0.063   291.55
2021.72    0.068   290.21
2021.82    0.072   289.03
2021.92    0.076   287.97
2022.02    0.080   287.03
2022.12    0.084   286.16
2022.22    0.087   285.37
2022.32    0.090   284.64
2022.42    0.094   283.96
2022.52    0.097   283.33
2022.62    0.100   282.73
2022.72    0.103   282.17
2022.82    0.105   281.63
2022.92    0.108   281.13
2023.02    0.111   280.64
2023.12    0.113   280.18
2023.22    0.115   279.74
2023.32    0.118   279.32
2023.42    0.120   278.91
2023.52    0.122   278.52
2023.62    0.124   278.13
2023.72    0.126   277.77
2023.82    0.128   277.41
2023.92    0.130   277.06
2024.02    0.132   276.72
2024.12    0.133   276.40
2024.22    0.135   276.07
2024.32    0.136   275.76
2024.42    0.138   275.46
2024.52    0.139   275.16
2024.62    0.141   274.86
2024.72    0.142   274.57
2024.82    0.143   274.29
2024.92    0.145   274.01
2025.02    0.146   273.74
2025.12    0.147   273.47
2025.22    0.148   273.21
2025.32    0.149   272.95
2025.42    0.150   272.69
2025.52    0.151   272.43
2025.62    0.152   272.18
2025.72    0.153   271.93
2025.82    0.153   271.69
2025.92    0.154   271.44
2026.02    0.155   271.20
2026.12    0.155   270.96
2026.22    0.156   270.72
2026.32    0.156   270.49
2026.42    0.157   270.25
2026.52    0.157   270.02
2026.62    0.158   269.79
2026.72    0.158   269.56
2026.82    0.158   269.33
2026.92    0.159   269.10
2027.02    0.159   268.87
2027.12    0.159   268.64
2027.22    0.159   268.41
2027.32    0.159   268.19
2027.42    0.159   267.96
2027.52    0.159   267.73
2027.62    0.159   267.50
2027.72    0.159   267.28
2027.82    0.159   267.05
2027.92    0.159   266.82
2028.02    0.159   266.59
2028.12    0.158   266.36
2028.22    0.158   266.13
2028.32    0.158   265.90
2028.42    0.157   265.67
2028.52    0.157   265.44
2028.62    0.156   265.20
2028.72    0.156   264.97
2028.82    0.155   264.73
2028.92    0.155   264.49
2029.02    0.154   264.25
2029.12    0.153   264.00
2029.22    0.153   263.76
2029.32    0.152   263.51
2029.42    0.151   263.25
2029.52    0.150   263.00
2029.62    0.149   262.74
2029.72    0.148   262.48
2029.82    0.147   262.21
2029.92    0.146   261.95
2030.02    0.145   261.67
2030.12    0.143   261.39
2030.22    0.142   261.11
2030.32    0.141   260.82
2030.42    0.140   260.53
2030.52    0.138   260.23
2030.62    0.137   259.93
2030.72    0.135   259.61
2030.82    0.133   259.29
2030.92    0.132   258.97
2031.02    0.130   258.63
2031.12    0.128   258.29
2031.22    0.126   257.93
2031.32    0.125   257.56
2031.42    0.123   257.19
2031.52    0.121   256.80
2031.62    0.118   256.39
2031.72    0.116   255.97

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 15:39:10