Double Star Calculator - Orbit

Orbital Elements for COU384
WDS: COU384 WDS ID/Discoverer
P: 40.430 Orbital period (years)
a: 0.1475 Semi-major axis (arcseconds)
i: 96.83 Inclination (degrees)
Ω: 60.96 Longitude of ascending node (degrees)
T: 1999.330 Epoch of periastron passage (year)
e: 0.379 Eccentricity
ω: 31.3 Longitude of periastron (degrees)
Start-Year: 2004.785 Year
End-Year: 2045.215 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for COU384
Position: 091816.92+184651.7 Epoch-2000 right ascension and declination
WDS-ID: 09183+1847 WDS designation
Discoverer Code: COU384 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 80082 HD catalog number
Hipparcos number: 45648 Hipparcos catalog number
V1: 8.2 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: Flags
Ephemerides: Ephemerides
Code: BAE2021 Reference

Double Star Orbit for COU384



WDS 6th Orbit including measures of COU384

-- 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 COU384
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.086   227.67
--------------------------
2004.79    0.070   251.54
2004.88    0.072   251.12
2004.98    0.075   250.72
2005.08    0.077   250.35
2005.18    0.079   250.00
2005.28    0.082   249.67
2005.38    0.084   249.36
2005.48    0.087   249.07
2005.58    0.089   248.80
2005.68    0.091   248.53
2005.78    0.094   248.28
2005.88    0.096   248.05
2005.98    0.098   247.82
2006.08    0.100   247.60
2006.18    0.102   247.39
2006.28    0.105   247.19
2006.38    0.107   247.00
2006.48    0.109   246.82
2006.58    0.111   246.64
2006.68    0.113   246.47
2006.78    0.115   246.31
2006.88    0.117   246.15
2006.98    0.119   246.00
2007.08    0.121   245.85
2007.18    0.123   245.70
2007.28    0.125   245.56
2007.38    0.126   245.43
2007.48    0.128   245.30
2007.58    0.130   245.17
2007.68    0.132   245.05
2007.78    0.134   244.92
2007.88    0.135   244.81
2007.98    0.137   244.69
2008.08    0.139   244.58
2008.18    0.140   244.47
2008.28    0.142   244.36
2008.38    0.143   244.26
2008.48    0.145   244.15
2008.58    0.146   244.05
2008.68    0.148   243.96
2008.78    0.149   243.86
2008.88    0.151   243.76
2008.98    0.152   243.67
2009.08    0.154   243.58
2009.18    0.155   243.49
2009.28    0.156   243.40
2009.38    0.158   243.32
2009.48    0.159   243.23
2009.58    0.160   243.15
2009.68    0.161   243.06
2009.78    0.162   242.98
2009.88    0.164   242.90
2009.98    0.165   242.82
2010.08    0.166   242.75
2010.18    0.167   242.67
2010.28    0.168   242.59
2010.38    0.169   242.52
2010.48    0.170   242.44
2010.58    0.171   242.37
2010.68    0.172   242.30
2010.78    0.173   242.23
2010.88    0.174   242.16
2010.98    0.175   242.09
2011.08    0.176   242.02
2011.18    0.177   241.95
2011.28    0.177   241.88
2011.38    0.178   241.81
2011.48    0.179   241.75
2011.58    0.180   241.68
2011.68    0.181   241.61
2011.78    0.181   241.55
2011.88    0.182   241.48
2011.98    0.183   241.42
2012.08    0.183   241.36
2012.18    0.184   241.29
2012.28    0.184   241.23
2012.38    0.185   241.17
2012.48    0.186   241.11
2012.58    0.186   241.04
2012.68    0.187   240.98
2012.78    0.187   240.92
2012.88    0.188   240.86
2012.98    0.188   240.80
2013.08    0.188   240.74
2013.18    0.189   240.68
2013.28    0.189   240.62
2013.38    0.190   240.56
2013.48    0.190   240.50
2013.58    0.190   240.44
2013.68    0.191   240.38
2013.78    0.191   240.33
2013.88    0.191   240.27
2013.98    0.191   240.21
2014.08    0.191   240.15
2014.18    0.192   240.09
2014.28    0.192   240.03
2014.38    0.192   239.98
2014.48    0.192   239.92
2014.58    0.192   239.86
2014.68    0.192   239.80
2014.78    0.192   239.75
2014.88    0.192   239.69
2014.98    0.192   239.63
2015.08    0.192   239.57
2015.18    0.192   239.51
2015.28    0.192   239.46
2015.38    0.192   239.40
2015.48    0.192   239.34
2015.58    0.192   239.28
2015.68    0.192   239.23
2015.78    0.192   239.17
2015.88    0.192   239.11
2015.98    0.192   239.05
2016.08    0.191   238.99
2016.18    0.191   238.94
2016.28    0.191   238.88
2016.38    0.191   238.82
2016.48    0.191   238.76
2016.58    0.190   238.70
2016.68    0.190   238.64
2016.78    0.190   238.58
2016.88    0.189   238.52
2016.98    0.189   238.47
2017.08    0.189   238.41
2017.18    0.188   238.35
2017.28    0.188   238.28
2017.38    0.187   238.22
2017.48    0.187   238.16
2017.58    0.187   238.10
2017.68    0.186   238.04
2017.78    0.186   237.98
2017.88    0.185   237.92
2017.98    0.185   237.85
2018.08    0.184   237.79
2018.18    0.183   237.73
2018.28    0.183   237.67
2018.38    0.182   237.60
2018.48    0.182   237.54
2018.58    0.181   237.47
2018.68    0.180   237.41
2018.78    0.180   237.34
2018.88    0.179   237.27
2018.98    0.178   237.21
2019.08    0.178   237.14
2019.18    0.177   237.07
2019.28    0.176   237.00
2019.38    0.175   236.94
2019.48    0.175   236.87
2019.58    0.174   236.80
2019.68    0.173   236.73
2019.78    0.172   236.65
2019.88    0.171   236.58
2019.98    0.171   236.51
2020.08    0.170   236.44
2020.18    0.169   236.36
2020.28    0.168   236.29
2020.38    0.167   236.21
2020.48    0.166   236.13
2020.58    0.165   236.06
2020.68    0.164   235.98
2020.78    0.163   235.90
2020.88    0.162   235.82
2020.98    0.161   235.74
2021.08    0.160   235.65
2021.18    0.159   235.57
2021.28    0.158   235.49
2021.38    0.157   235.40
2021.48    0.156   235.31
2021.58    0.155   235.22
2021.68    0.154   235.14
2021.78    0.153   235.04
2021.88    0.152   234.95
2021.98    0.151   234.86
2022.08    0.149   234.76
2022.18    0.148   234.67
2022.28    0.147   234.57
2022.38    0.146   234.47
2022.48    0.145   234.37
2022.58    0.143   234.27
2022.68    0.142   234.16
2022.78    0.141   234.06
2022.88    0.140   233.95
2022.98    0.138   233.84
2023.08    0.137   233.73
2023.18    0.136   233.61
2023.28    0.134   233.49
2023.38    0.133   233.38
2023.48    0.132   233.25
2023.58    0.130   233.13
2023.68    0.129   233.00
2023.78    0.128   232.87
2023.88    0.126   232.74
2023.98    0.125   232.61
2024.08    0.124   232.47
2024.18    0.122   232.33
2024.28    0.121   232.18
2024.38    0.119   232.03
2024.48    0.118   231.88
2024.58    0.116   231.73
2024.68    0.115   231.57
2024.78    0.113   231.40
2024.88    0.112   231.23
2024.98    0.110   231.06
2025.08    0.109   230.88
2025.18    0.107   230.70
2025.28    0.106   230.51
2025.38    0.104   230.32
2025.48    0.103   230.12
2025.58    0.101   229.91
2025.68    0.099   229.70
2025.78    0.098   229.48
2025.88    0.096   229.25
2025.98    0.095   229.02
2026.08    0.093   228.78
2026.18    0.091   228.52
2026.28    0.090   228.26
2026.38    0.088   227.99
2026.48    0.086   227.71
2026.58    0.085   227.42
2026.68    0.083   227.12
2026.78    0.081   226.80
2026.88    0.080   226.47
2026.98    0.078   226.12
2027.08    0.076   225.76
2027.18    0.074   225.39
2027.28    0.073   224.99
2027.38    0.071   224.58
2027.48    0.069   224.15
2027.58    0.067   223.69
2027.68    0.066   223.21
2027.78    0.064   222.70
2027.88    0.062   222.17
2027.98    0.060   221.60
2028.08    0.059   221.00
2028.18    0.057   220.36
2028.28    0.055   219.68
2028.38    0.053   218.96
2028.48    0.052   218.19
2028.58    0.050   217.37
2028.68    0.048   216.48
2028.78    0.046   215.53
2028.88    0.045   214.50
2028.98    0.043   213.39
2029.08    0.041   212.19
2029.18    0.040   210.89
2029.28    0.038   209.46
2029.38    0.036   207.91
2029.48    0.035   206.21
2029.58    0.033   204.34
2029.68    0.031   202.28
2029.78    0.030   200.00
2029.88    0.028   197.47
2029.98    0.027   194.68
2030.08    0.026   191.57
2030.18    0.024   188.12
2030.28    0.023   184.30
2030.38    0.022   180.07
2030.48    0.021   175.43
2030.58    0.020   170.38
2030.68    0.019   164.95
2030.78    0.019   159.19
2030.88    0.019   153.20
2030.98    0.019   147.11
2031.08    0.019   141.04
2031.18    0.019   135.12
2031.28    0.020   129.46
2031.38    0.020   124.16
2031.48    0.021   119.25
2031.58    0.022   114.75
2031.68    0.023   110.66
2031.78    0.025   106.97
2031.88    0.026   103.64
2031.98    0.027   100.64
2032.08    0.029    97.93
2032.18    0.030    95.49
2032.28    0.032    93.29
2032.38    0.033    91.29
2032.48    0.035    89.47
2032.58    0.037    87.81
2032.68    0.038    86.29
2032.78    0.040    84.91
2032.88    0.042    83.63
2032.98    0.043    82.45
2033.08    0.045    81.36
2033.18    0.047    80.34
2033.28    0.048    79.40
2033.38    0.050    78.52
2033.48    0.052    77.70
2033.58    0.053    76.93
2033.68    0.055    76.21
2033.78    0.057    75.53
2033.88    0.058    74.89
2033.98    0.060    74.28
2034.08    0.062    73.71
2034.18    0.063    73.16
2034.28    0.065    72.64
2034.38    0.066    72.15
2034.48    0.068    71.68
2034.58    0.070    71.23
2034.68    0.071    70.80
2034.78    0.073    70.38
2034.88    0.074    69.98
2034.98    0.075    69.60
2035.08    0.077    69.23
2035.18    0.078    68.88
2035.28    0.079    68.53
2035.38    0.081    68.20
2035.48    0.082    67.88
2035.58    0.083    67.57
2035.68    0.084    67.26
2035.78    0.086    66.97
2035.88    0.087    66.68
2035.98    0.088    66.40
2036.08    0.089    66.13
2036.18    0.090    65.86
2036.28    0.091    65.60
2036.38    0.091    65.34
2036.48    0.092    65.08
2036.58    0.093    64.84
2036.68    0.094    64.59
2036.78    0.094    64.35
2036.88    0.095    64.11
2036.98    0.095    63.87
2037.08    0.096    63.64
2037.18    0.096    63.41
2037.28    0.096    63.18
2037.38    0.097    62.95
2037.48    0.097    62.72
2037.58    0.097    62.49
2037.68    0.097    62.27
2037.78    0.097    62.04
2037.88    0.097    61.81
2037.98    0.096    61.58
2038.08    0.096    61.35
2038.18    0.096    61.12
2038.28    0.095    60.89
2038.38    0.095    60.65
2038.48    0.094    60.41
2038.58    0.093    60.17
2038.68    0.093    59.92
2038.78    0.092    59.67
2038.88    0.091    59.41
2038.98    0.090    59.15
2039.08    0.088    58.88
2039.18    0.087    58.61
2039.28    0.086    58.32
2039.38    0.084    58.03
2039.48    0.083    57.72
2039.58    0.081    57.41
2039.68    0.080    57.08
2039.78    0.078    56.74
2039.88    0.076    56.38
2039.98    0.074    56.00
2040.08    0.072    55.61
2040.18    0.070    55.19
2040.28    0.068    54.75
2040.38    0.066    54.27
2040.48    0.064    53.77
2040.58    0.062    53.23
2040.68    0.059    52.65
2040.78    0.057    52.02
2040.88    0.055    51.33
2040.98    0.052    50.58
2041.08    0.050    49.76
2041.18    0.047    48.85
2041.28    0.045    47.83
2041.38    0.042    46.69
2041.48    0.039    45.40
2041.58    0.037    43.93
2041.68    0.034    42.23
2041.78    0.032    40.25
2041.88    0.029    37.92
2041.98    0.026    35.13
2042.08    0.024    31.74
2042.18    0.021    27.59
2042.28    0.019    22.41
2042.38    0.017    15.88
2042.48    0.015     7.67
2042.58    0.014   357.46
2042.68    0.013   345.33
2042.78    0.013   331.98
2042.88    0.013   318.72
2042.98    0.014   306.81
2043.08    0.015   296.86
2043.18    0.017   288.87
2043.28    0.019   282.54
2043.38    0.022   277.51
2043.48    0.024   273.47
2043.58    0.027   270.18
2043.68    0.029   267.46
2043.78    0.032   265.19
2043.88    0.035   263.26
2043.98    0.037   261.60
2044.08    0.040   260.17
2044.18    0.043   258.92
2044.28    0.045   257.81
2044.38    0.048   256.83
2044.48    0.051   255.95
2044.58    0.053   255.16
2044.68    0.056   254.45
2044.78    0.059   253.79
2044.88    0.061   253.20
2044.98    0.064   252.65
2045.08    0.066   252.14
2045.18    0.069   251.68






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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 16:16:51



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