Double Star Calculator - Orbit

Orbital Elements for DOC1

WDS:	DOC1	WDS ID/Discoverer
P:	25.440	Orbital period (years)
a:	0.0852	Semi-major axis (arcseconds)
i:	61.0	Inclination (degrees)
Ω:	95.0	Longitude of ascending node (degrees)
T:	2014.810	Epoch of periastron passage (year)
e:	0.424	Eccentricity
ω:	18.6	Longitude of periastron (degrees)
Start-Year:	2012.28	Year
End-Year:	2037.72	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for DOC1
Position:	131318.76+162147.7	Epoch-2000 right ascension and declination
WDS-ID:	13133+1621	WDS designation
Discoverer Code:	DOC1	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	114882	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	8.13	Magnitude of the primary
V2:	8.93	Magnitude of the secondary
Equinox:		Equinox
Date:		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:	Tok2024c	Reference

Double Star Orbit for DOC1

WDS 6th Orbit including measures of DOC1

-- 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 DOC1

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.119   280.92
--------------------------
2012.28    0.042    53.71
2012.38    0.042    56.25
2012.48    0.043    58.72
2012.58    0.044    61.11
2012.68    0.044    63.43
2012.78    0.045    65.67
2012.88    0.046    67.86
2012.98    0.046    69.97
2013.08    0.047    72.04
2013.18    0.048    74.04
2013.28    0.048    76.00
2013.38    0.049    77.92
2013.48    0.049    79.80
2013.58    0.050    81.65
2013.68    0.050    83.48
2013.78    0.050    85.28
2013.88    0.050    87.07
2013.98    0.050    88.85
2014.08    0.050    90.63
2014.18    0.050    92.42
2014.28    0.050    94.21
2014.38    0.050    96.03
2014.48    0.049    97.88
2014.58    0.049    99.76
2014.68    0.048   101.68
2014.78    0.047   103.66
2014.88    0.047   105.71
2014.98    0.046   107.83
2015.08    0.045   110.04
2015.18    0.044   112.35
2015.28    0.043   114.79
2015.38    0.041   117.35
2015.48    0.040   120.07
2015.58    0.039   122.96
2015.68    0.038   126.03
2015.78    0.036   129.31
2015.88    0.035   132.81
2015.98    0.034   136.55
2016.08    0.033   140.54
2016.18    0.032   144.79
2016.28    0.031   149.28
2016.38    0.031   154.00
2016.48    0.030   158.93
2016.58    0.030   164.02
2016.68    0.029   169.23
2016.78    0.029   174.48
2016.88    0.029   179.70
2016.98    0.030   184.84
2017.08    0.030   189.82
2017.18    0.031   194.60
2017.28    0.032   199.15
2017.38    0.033   203.43
2017.48    0.034   207.45
2017.58    0.035   211.19
2017.68    0.037   214.66
2017.78    0.038   217.88
2017.88    0.040   220.86
2017.98    0.041   223.62
2018.08    0.043   226.18
2018.18    0.044   228.54
2018.28    0.046   230.74
2018.38    0.048   232.79
2018.48    0.050   234.69
2018.58    0.051   236.47
2018.68    0.053   238.13
2018.78    0.055   239.69
2018.88    0.056   241.15
2018.98    0.058   242.53
2019.08    0.060   243.83
2019.18    0.061   245.05
2019.28    0.063   246.21
2019.38    0.065   247.32
2019.48    0.066   248.37
2019.58    0.068   249.36
2019.68    0.070   250.31
2019.78    0.071   251.22
2019.88    0.073   252.09
2019.98    0.074   252.93
2020.08    0.076   253.73
2020.18    0.077   254.50
2020.28    0.079   255.24
2020.38    0.080   255.95
2020.48    0.082   256.64
2020.58    0.083   257.31
2020.68    0.084   257.95
2020.78    0.086   258.58
2020.88    0.087   259.18
2020.98    0.088   259.77
2021.08    0.089   260.34
2021.18    0.091   260.90
2021.28    0.092   261.44
2021.38    0.093   261.97
2021.48    0.094   262.48
2021.58    0.095   262.98
2021.68    0.096   263.48
2021.78    0.097   263.96
2021.88    0.098   264.43
2021.98    0.099   264.89
2022.08    0.100   265.34
2022.18    0.101   265.78
2022.28    0.102   266.21
2022.38    0.103   266.64
2022.48    0.104   267.06
2022.58    0.105   267.47
2022.68    0.106   267.88
2022.78    0.107   268.28
2022.88    0.107   268.67
2022.98    0.108   269.06
2023.08    0.109   269.44
2023.18    0.110   269.82
2023.28    0.110   270.20
2023.38    0.111   270.57
2023.48    0.111   270.93
2023.58    0.112   271.29
2023.68    0.113   271.65
2023.78    0.113   272.00
2023.88    0.114   272.36
2023.98    0.114   272.70
2024.08    0.115   273.05
2024.18    0.115   273.39
2024.28    0.115   273.73
2024.38    0.116   274.07
2024.48    0.116   274.40
2024.58    0.117   274.73
2024.68    0.117   275.07
2024.78    0.117   275.39
2024.88    0.117   275.72
2024.98    0.118   276.05
2025.08    0.118   276.37
2025.18    0.118   276.70
2025.28    0.118   277.02
2025.38    0.118   277.34
2025.48    0.119   277.66
2025.58    0.119   277.98
2025.68    0.119   278.30
2025.78    0.119   278.62
2025.88    0.119   278.94
2025.98    0.119   279.26
2026.08    0.119   279.58
2026.18    0.119   279.90
2026.28    0.119   280.22
2026.38    0.119   280.53
2026.48    0.119   280.85
2026.58    0.119   281.17
2026.68    0.118   281.50
2026.78    0.118   281.82
2026.88    0.118   282.14
2026.98    0.118   282.46
2027.08    0.118   282.79
2027.18    0.118   283.11
2027.28    0.117   283.44
2027.38    0.117   283.77
2027.48    0.117   284.10
2027.58    0.116   284.43
2027.68    0.116   284.77
2027.78    0.116   285.10
2027.88    0.115   285.44
2027.98    0.115   285.78
2028.08    0.114   286.13
2028.18    0.114   286.47
2028.28    0.114   286.82
2028.38    0.113   287.17
2028.48    0.113   287.53
2028.58    0.112   287.88
2028.68    0.111   288.25
2028.78    0.111   288.61
2028.88    0.110   288.98
2028.98    0.110   289.35
2029.08    0.109   289.73
2029.18    0.108   290.11
2029.28    0.108   290.50
2029.38    0.107   290.89
2029.48    0.106   291.28
2029.58    0.106   291.68
2029.68    0.105   292.09
2029.78    0.104   292.50
2029.88    0.103   292.92
2029.98    0.103   293.34
2030.08    0.102   293.78
2030.18    0.101   294.21
2030.28    0.100   294.66
2030.38    0.099   295.11
2030.48    0.098   295.57
2030.58    0.098   296.04
2030.68    0.097   296.52
2030.78    0.096   297.01
2030.88    0.095   297.51
2030.98    0.094   298.01
2031.08    0.093   298.53
2031.18    0.092   299.06
2031.28    0.091   299.60
2031.38    0.090   300.15
2031.48    0.089   300.72
2031.58    0.088   301.30
2031.68    0.087   301.89
2031.78    0.086   302.50
2031.88    0.085   303.12
2031.98    0.083   303.76
2032.08    0.082   304.42
2032.18    0.081   305.09
2032.28    0.080   305.78
2032.38    0.079   306.50
2032.48    0.078   307.23
2032.58    0.077   307.99
2032.68    0.075   308.77
2032.78    0.074   309.58
2032.88    0.073   310.41
2032.98    0.072   311.27
2033.08    0.071   312.17
2033.18    0.069   313.09
2033.28    0.068   314.04
2033.38    0.067   315.03
2033.48    0.066   316.06
2033.58    0.064   317.12
2033.68    0.063   318.23
2033.78    0.062   319.38
2033.88    0.061   320.58
2033.98    0.060   321.83
2034.08    0.058   323.13
2034.18    0.057   324.49
2034.28    0.056   325.90
2034.38    0.055   327.38
2034.48    0.054   328.92
2034.58    0.052   330.53
2034.68    0.051   332.21
2034.78    0.050   333.97
2034.88    0.049   335.80
2034.98    0.048   337.72
2035.08    0.047   339.73
2035.18    0.046   341.82
2035.28    0.045   344.01
2035.38    0.044   346.29
2035.48    0.043   348.66
2035.58    0.042   351.12
2035.68    0.042   353.68
2035.78    0.041   356.33
2035.88    0.040   359.07
2035.98    0.040     1.90
2036.08    0.039     4.79
2036.18    0.039     7.76
2036.28    0.038    10.78
2036.38    0.038    13.86
2036.48    0.038    16.97
2036.58    0.038    20.10
2036.68    0.038    23.24
2036.78    0.038    26.38
2036.88    0.038    29.50
2036.98    0.038    32.60
2037.08    0.039    35.65
2037.18    0.039    38.65
2037.28    0.039    41.60
2037.38    0.040    44.47
2037.48    0.040    47.28
2037.58    0.041    50.01
2037.68    0.042    52.67

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 16:53:36