Double Star Calculator - Orbit

Orbital Elements for CHR94AA,AB
WDS: CHR94AA,AB WDS ID/Discoverer
P: 25.330 Orbital period (years)
a: 0.111 Semi-major axis (arcseconds)
i: 71.5 Inclination (degrees)
Ω: 97.5 Longitude of ascending node (degrees)
T: 2009.560 Epoch of periastron passage (year)
e: 0.4 Eccentricity
ω: 293.8 Longitude of periastron (degrees)
Start-Year: 2012.335 Year
End-Year: 2037.665 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for CHR94AA,AB
Position: 201546.16+274851.2 Epoch-2000 right ascension and declination
WDS-ID: 20158+2749 WDS designation
Discoverer Code: CHR94AA,AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 192806 HD catalog number
Hipparcos number: 99874 Hipparcos catalog number
V1: 4.80 Magnitude of the primary
V2: 6.5 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2006 Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Cve2009b Reference

Double Star Orbit for CHR94AA,AB



WDS 6th Orbit including measures of CHR94AA,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 CHR94AA,AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.118   264.47
--------------------------
2012.34    0.085   102.56
2012.43    0.086   103.26
2012.53    0.086   103.95
2012.63    0.086   104.64
2012.73    0.086   105.33
2012.83    0.086   106.01
2012.93    0.086   106.70
2013.03    0.086   107.39
2013.13    0.086   108.08
2013.23    0.085   108.77
2013.33    0.085   109.47
2013.43    0.085   110.18
2013.53    0.084   110.89
2013.63    0.084   111.61
2013.73    0.083   112.34
2013.83    0.083   113.08
2013.93    0.082   113.83
2014.03    0.081   114.60
2014.13    0.081   115.37
2014.23    0.080   116.16
2014.33    0.079   116.97
2014.43    0.078   117.79
2014.53    0.077   118.63
2014.63    0.077   119.49
2014.73    0.076   120.37
2014.83    0.075   121.28
2014.93    0.074   122.20
2015.03    0.073   123.15
2015.13    0.072   124.13
2015.23    0.071   125.13
2015.33    0.070   126.16
2015.43    0.069   127.22
2015.53    0.068   128.31
2015.63    0.067   129.44
2015.73    0.066   130.60
2015.83    0.065   131.80
2015.93    0.064   133.04
2016.03    0.063   134.32
2016.13    0.062   135.64
2016.23    0.061   137.00
2016.33    0.060   138.41
2016.43    0.059   139.87
2016.53    0.058   141.38
2016.63    0.057   142.94
2016.73    0.056   144.54
2016.83    0.055   146.21
2016.93    0.054   147.92
2017.03    0.053   149.69
2017.13    0.052   151.52
2017.23    0.052   153.40
2017.33    0.051   155.33
2017.43    0.050   157.32
2017.53    0.050   159.36
2017.63    0.049   161.45
2017.73    0.049   163.59
2017.83    0.048   165.77
2017.93    0.048   167.99
2018.03    0.047   170.25
2018.13    0.047   172.54
2018.23    0.047   174.86
2018.33    0.047   177.19
2018.43    0.047   179.54
2018.53    0.046   181.90
2018.63    0.047   184.25
2018.73    0.047   186.60
2018.83    0.047   188.94
2018.93    0.047   191.26
2019.03    0.047   193.55
2019.13    0.048   195.81
2019.23    0.048   198.03
2019.33    0.049   200.22
2019.43    0.049   202.36
2019.53    0.050   204.45
2019.63    0.050   206.49
2019.73    0.051   208.48
2019.83    0.052   210.41
2019.93    0.052   212.29
2020.03    0.053   214.11
2020.13    0.054   215.88
2020.23    0.055   217.58
2020.33    0.056   219.24
2020.43    0.057   220.83
2020.53    0.058   222.38
2020.63    0.059   223.87
2020.73    0.060   225.31
2020.83    0.061   226.70
2020.93    0.062   228.04
2021.03    0.063   229.34
2021.13    0.064   230.59
2021.23    0.066   231.79
2021.33    0.067   232.96
2021.43    0.068   234.09
2021.53    0.069   235.17
2021.63    0.070   236.23
2021.73    0.071   237.24
2021.83    0.073   238.22
2021.93    0.074   239.18
2022.03    0.075   240.10
2022.13    0.076   240.99
2022.23    0.077   241.85
2022.33    0.079   242.69
2022.43    0.080   243.50
2022.53    0.081   244.29
2022.63    0.082   245.06
2022.73    0.083   245.80
2022.83    0.085   246.52
2022.93    0.086   247.22
2023.03    0.087   247.91
2023.13    0.088   248.57
2023.23    0.089   249.22
2023.33    0.090   249.85
2023.43    0.092   250.47
2023.53    0.093   251.07
2023.63    0.094   251.65
2023.73    0.095   252.23
2023.83    0.096   252.79
2023.93    0.097   253.33
2024.03    0.098   253.87
2024.13    0.099   254.39
2024.23    0.100   254.90
2024.33    0.101   255.41
2024.43    0.102   255.90
2024.53    0.103   256.38
2024.63    0.104   256.85
2024.73    0.105   257.32
2024.83    0.106   257.78
2024.93    0.107   258.22
2025.03    0.108   258.67
2025.13    0.109   259.10
2025.23    0.110   259.53
2025.33    0.110   259.95
2025.43    0.111   260.36
2025.53    0.112   260.77
2025.63    0.113   261.18
2025.73    0.113   261.57
2025.83    0.114   261.97
2025.93    0.115   262.35
2026.03    0.116   262.74
2026.13    0.116   263.12
2026.23    0.117   263.49
2026.33    0.117   263.86
2026.43    0.118   264.23
2026.53    0.118   264.60
2026.63    0.119   264.96
2026.73    0.119   265.32
2026.83    0.120   265.67
2026.93    0.120   266.03
2027.03    0.121   266.38
2027.13    0.121   266.73
2027.23    0.121   267.08
2027.33    0.121   267.42
2027.43    0.122   267.77
2027.53    0.122   268.11
2027.63    0.122   268.45
2027.73    0.122   268.79
2027.83    0.122   269.13
2027.93    0.122   269.48
2028.03    0.122   269.82
2028.13    0.122   270.16
2028.23    0.122   270.50
2028.33    0.122   270.84
2028.43    0.122   271.18
2028.53    0.122   271.53
2028.63    0.121   271.87
2028.73    0.121   272.22
2028.83    0.121   272.57
2028.93    0.120   272.92
2029.03    0.120   273.27
2029.13    0.119   273.63
2029.23    0.119   273.99
2029.33    0.118   274.35
2029.43    0.118   274.71
2029.53    0.117   275.09
2029.63    0.116   275.46
2029.73    0.115   275.84
2029.83    0.114   276.23
2029.93    0.113   276.62
2030.03    0.112   277.02
2030.13    0.111   277.43
2030.23    0.110   277.84
2030.33    0.109   278.26
2030.43    0.108   278.70
2030.53    0.107   279.14
2030.63    0.105   279.59
2030.73    0.104   280.06
2030.83    0.102   280.54
2030.93    0.101   281.04
2031.03    0.099   281.55
2031.13    0.097   282.08
2031.23    0.095   282.63
2031.33    0.094   283.20
2031.43    0.092   283.79
2031.53    0.090   284.41
2031.63    0.087   285.06
2031.73    0.085   285.75
2031.83    0.083   286.47
2031.93    0.081   287.23
2032.03    0.078   288.04
2032.13    0.076   288.89
2032.23    0.073   289.81
2032.33    0.071   290.80
2032.43    0.068   291.86
2032.53    0.065   293.02
2032.63    0.062   294.28
2032.73    0.059   295.66
2032.83    0.056   297.18
2032.93    0.053   298.88
2033.03    0.050   300.78
2033.13    0.047   302.92
2033.23    0.044   305.37
2033.33    0.041   308.19
2033.43    0.038   311.46
2033.53    0.035   315.30
2033.63    0.032   319.84
2033.73    0.029   325.25
2033.83    0.027   331.69
2033.93    0.025   339.34
2034.03    0.023   348.24
2034.13    0.022   358.27
2034.23    0.022     8.99
2034.33    0.022    19.77
2034.43    0.023    29.94
2034.53    0.025    39.03
2034.63    0.027    46.88
2034.73    0.029    53.51
2034.83    0.032    59.09
2034.93    0.034    63.78
2035.03    0.037    67.75
2035.13    0.040    71.15
2035.23    0.043    74.08
2035.33    0.046    76.64
2035.43    0.049    78.89
2035.53    0.052    80.90
2035.63    0.055    82.70
2035.73    0.057    84.33
2035.83    0.060    85.82
2035.93    0.062    87.19
2036.03    0.065    88.46
2036.13    0.067    89.64
2036.23    0.069    90.75
2036.33    0.071    91.80
2036.43    0.073    92.79
2036.53    0.074    93.73
2036.63    0.076    94.64
2036.73    0.077    95.51
2036.83    0.079    96.35
2036.93    0.080    97.16
2037.03    0.081    97.95
2037.13    0.082    98.72
2037.23    0.083    99.47
2037.33    0.083   100.21
2037.43    0.084   100.93
2037.53    0.085   101.64
2037.63    0.085   102.35






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 18:13:14



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