Double Star Calculator - Orbit

Orbital Elements for CHR232AA,AB

WDS:	CHR232AA,AB	WDS ID/Discoverer
P:	16.468	Orbital period (years)
a:	0.0933	Semi-major axis (arcseconds)
i:	123.9	Inclination (degrees)
Ω:	10.4	Longitude of ascending node (degrees)
T:	2011.536	Epoch of periastron passage (year)
e:	0.419	Eccentricity
ω:	321.6	Longitude of periastron (degrees)
Start-Year:	2016.766	Year
End-Year:	2033.234	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for CHR232AA,AB
Position:	153309.52-242925.6	Epoch-2000 right ascension and declination
WDS-ID:	15332-2429	WDS designation
Discoverer Code:	CHR232AA,AB	Discover designation and components
ADS number:	9689	Aitken Double Star catalog
HD number:	138488	HD catalog number
Hipparcos number:	76143	Hipparcos catalog number
V1:	7.2	Magnitude of the primary
V2:	8.8	Magnitude of the secondary
Equinox:	2000	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:	Tok2016e	Reference

Double Star Orbit for CHR232AA,AB

WDS 6th Orbit including measures of CHR232AA,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 CHR232AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.044   137.26
--------------------------
2016.77    0.075   247.43
2016.87    0.076   245.73
2016.97    0.078   244.10
2017.07    0.079   242.53
2017.17    0.081   241.02
2017.27    0.082   239.56
2017.37    0.083   238.15
2017.47    0.085   236.79
2017.57    0.086   235.48
2017.67    0.088   234.21
2017.77    0.089   232.98
2017.87    0.091   231.79
2017.97    0.092   230.64
2018.07    0.094   229.52
2018.17    0.095   228.43
2018.27    0.096   227.38
2018.37    0.098   226.35
2018.47    0.099   225.35
2018.57    0.100   224.38
2018.67    0.101   223.43
2018.77    0.103   222.51
2018.87    0.104   221.61
2018.97    0.105   220.72
2019.07    0.106   219.86
2019.17    0.107   219.02
2019.27    0.108   218.19
2019.37    0.110   217.38
2019.47    0.111   216.58
2019.57    0.112   215.80
2019.67    0.112   215.03
2019.77    0.113   214.28
2019.87    0.114   213.53
2019.97    0.115   212.80
2020.07    0.116   212.08
2020.17    0.117   211.37
2020.27    0.117   210.66
2020.37    0.118   209.97
2020.47    0.119   209.28
2020.57    0.119   208.60
2020.67    0.120   207.92
2020.77    0.120   207.26
2020.87    0.121   206.59
2020.97    0.121   205.93
2021.07    0.121   205.28
2021.17    0.122   204.63
2021.27    0.122   203.98
2021.37    0.122   203.33
2021.47    0.122   202.69
2021.57    0.122   202.04
2021.67    0.122   201.40
2021.77    0.122   200.76
2021.87    0.122   200.11
2021.97    0.122   199.47
2022.07    0.122   198.82
2022.17    0.122   198.17
2022.27    0.121   197.52
2022.37    0.121   196.87
2022.47    0.121   196.21
2022.57    0.120   195.55
2022.67    0.120   194.87
2022.77    0.119   194.20
2022.87    0.118   193.51
2022.97    0.118   192.82
2023.07    0.117   192.12
2023.17    0.116   191.41
2023.27    0.115   190.68
2023.37    0.114   189.95
2023.47    0.113   189.20
2023.57    0.112   188.43
2023.67    0.110   187.65
2023.77    0.109   186.85
2023.87    0.108   186.03
2023.97    0.106   185.18
2024.07    0.105   184.32
2024.17    0.103   183.42
2024.27    0.101   182.50
2024.37    0.099   181.54
2024.47    0.098   180.55
2024.57    0.096   179.52
2024.67    0.094   178.44
2024.77    0.091   177.31
2024.87    0.089   176.13
2024.97    0.087   174.89
2025.07    0.085   173.58
2025.17    0.082   172.20
2025.27    0.080   170.72
2025.37    0.077   169.15
2025.47    0.074   167.46
2025.57    0.072   165.65
2025.67    0.069   163.69
2025.77    0.066   161.56
2025.87    0.063   159.23
2025.97    0.060   156.68
2026.07    0.057   153.86
2026.17    0.054   150.72
2026.27    0.051   147.23
2026.37    0.048   143.30
2026.47    0.045   138.89
2026.57    0.043   133.91
2026.67    0.040   128.30
2026.77    0.038   122.00
2026.87    0.036   115.01
2026.97    0.035   107.36
2027.07    0.034    99.19
2027.17    0.034    90.72
2027.27    0.034    82.19
2027.37    0.034    73.90
2027.47    0.036    66.06
2027.57    0.037    58.81
2027.67    0.039    52.20
2027.77    0.041    46.23
2027.87    0.043    40.84
2027.97    0.046    35.98
2028.07    0.048    31.56
2028.17    0.050    27.51
2028.27    0.052    23.78
2028.37    0.054    20.31
2028.47    0.055    17.05
2028.57    0.057    13.96
2028.67    0.058    11.01
2028.77    0.059     8.16
2028.87    0.059     5.39
2028.97    0.060     2.69
2029.07    0.060     0.03
2029.17    0.061   357.40
2029.27    0.061   354.78
2029.37    0.061   352.16
2029.47    0.060   349.53
2029.57    0.060   346.88
2029.67    0.060   344.21
2029.77    0.059   341.50
2029.87    0.059   338.75
2029.97    0.059   335.96
2030.07    0.058   333.13
2030.17    0.058   330.24
2030.27    0.057   327.31
2030.37    0.057   324.33
2030.47    0.056   321.31
2030.57    0.056   318.24
2030.67    0.056   315.14
2030.77    0.055   312.01
2030.87    0.055   308.86
2030.97    0.055   305.70
2031.07    0.055   302.53
2031.17    0.055   299.36
2031.27    0.055   296.22
2031.37    0.056   293.10
2031.47    0.056   290.02
2031.57    0.057   286.99
2031.67    0.057   284.01
2031.77    0.058   281.09
2031.87    0.059   278.25
2031.97    0.059   275.47
2032.07    0.060   272.78
2032.17    0.061   270.17
2032.27    0.062   267.64
2032.37    0.063   265.20
2032.47    0.065   262.85
2032.57    0.066   260.57
2032.67    0.067   258.39
2032.77    0.068   256.28
2032.87    0.070   254.25
2032.97    0.071   252.30
2033.07    0.072   250.42
2033.17    0.074   248.62

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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 17:16:42