Double Star Calculator - Orbit

Orbital Elements for COU2388
WDS: COU2388 WDS ID/Discoverer
P: 32.820 Orbital period (years)
a: 0.2163 Semi-major axis (arcseconds)
i: 111.1 Inclination (degrees)
Ω: 17.9 Longitude of ascending node (degrees)
T: 2003.940 Epoch of periastron passage (year)
e: 0.276 Eccentricity
ω: 13.2 Longitude of periastron (degrees)
Start-Year: 2008.59 Year
End-Year: 2041.41 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for COU2388
Position: 154628.21+504759.8 Epoch-2000 right ascension and declination
WDS-ID: 15465+5048 WDS designation
Discoverer Code: COU2388 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 141373 HD catalog number
Hipparcos number: 77263 Hipparcos catalog number
V1: 9.61 Magnitude of the primary
V2: 9.72 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 COU2388



WDS 6th Orbit including measures of COU2388

-- 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 COU2388
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.160   170.11
--------------------------
2008.59    0.070   276.74
2008.69    0.071   273.19
2008.79    0.073   269.78
2008.89    0.075   266.51
2008.99    0.077   263.40
2009.09    0.079   260.46
2009.19    0.081   257.67
2009.29    0.083   255.04
2009.39    0.086   252.56
2009.49    0.089   250.22
2009.59    0.091   248.03
2009.69    0.094   245.96
2009.79    0.097   244.02
2009.89    0.100   242.19
2009.99    0.103   240.47
2010.09    0.106   238.84
2010.19    0.109   237.31
2010.29    0.112   235.87
2010.39    0.116   234.50
2010.49    0.119   233.20
2010.59    0.122   231.98
2010.69    0.125   230.81
2010.79    0.128   229.71
2010.89    0.132   228.66
2010.99    0.135   227.66
2011.09    0.138   226.70
2011.19    0.141   225.79
2011.29    0.144   224.92
2011.39    0.147   224.08
2011.49    0.151   223.28
2011.59    0.154   222.52
2011.69    0.157   221.78
2011.79    0.160   221.07
2011.89    0.163   220.39
2011.99    0.166   219.73
2012.09    0.169   219.10
2012.19    0.172   218.49
2012.29    0.175   217.89
2012.39    0.178   217.32
2012.49    0.180   216.77
2012.59    0.183   216.23
2012.69    0.186   215.71
2012.79    0.189   215.21
2012.89    0.192   214.71
2012.99    0.194   214.24
2013.09    0.197   213.77
2013.19    0.199   213.32
2013.29    0.202   212.88
2013.39    0.204   212.45
2013.49    0.207   212.03
2013.59    0.209   211.62
2013.69    0.212   211.22
2013.79    0.214   210.83
2013.89    0.216   210.45
2013.99    0.219   210.07
2014.09    0.221   209.70
2014.19    0.223   209.34
2014.29    0.225   208.99
2014.39    0.227   208.64
2014.49    0.229   208.30
2014.59    0.231   207.97
2014.69    0.233   207.64
2014.79    0.235   207.31
2014.89    0.237   207.00
2014.99    0.239   206.68
2015.09    0.241   206.37
2015.19    0.242   206.07
2015.29    0.244   205.77
2015.39    0.246   205.47
2015.49    0.247   205.18
2015.59    0.249   204.89
2015.69    0.250   204.61
2015.79    0.252   204.32
2015.89    0.253   204.05
2015.99    0.255   203.77
2016.09    0.256   203.50
2016.19    0.257   203.23
2016.29    0.258   202.96
2016.39    0.259   202.69
2016.49    0.261   202.43
2016.59    0.262   202.17
2016.69    0.263   201.91
2016.79    0.264   201.66
2016.89    0.265   201.40
2016.99    0.266   201.15
2017.09    0.266   200.90
2017.19    0.267   200.65
2017.29    0.268   200.40
2017.39    0.269   200.16
2017.49    0.269   199.91
2017.59    0.270   199.67
2017.69    0.271   199.42
2017.79    0.271   199.18
2017.89    0.272   198.94
2017.99    0.272   198.70
2018.09    0.272   198.46
2018.19    0.273   198.22
2018.29    0.273   197.98
2018.39    0.273   197.75
2018.49    0.274   197.51
2018.59    0.274   197.27
2018.69    0.274   197.03
2018.79    0.274   196.80
2018.89    0.274   196.56
2018.99    0.274   196.33
2019.09    0.274   196.09
2019.19    0.274   195.85
2019.29    0.274   195.62
2019.39    0.274   195.38
2019.49    0.273   195.14
2019.59    0.273   194.90
2019.69    0.273   194.66
2019.79    0.272   194.43
2019.89    0.272   194.19
2019.99    0.272   193.95
2020.09    0.271   193.70
2020.19    0.271   193.46
2020.29    0.270   193.22
2020.39    0.269   192.98
2020.49    0.269   192.73
2020.59    0.268   192.48
2020.69    0.267   192.24
2020.79    0.267   191.99
2020.89    0.266   191.74
2020.99    0.265   191.48
2021.09    0.264   191.23
2021.19    0.263   190.97
2021.29    0.262   190.72
2021.39    0.261   190.46
2021.49    0.260   190.19
2021.59    0.259   189.93
2021.69    0.258   189.66
2021.79    0.256   189.40
2021.89    0.255   189.12
2021.99    0.254   188.85
2022.09    0.253   188.57
2022.19    0.251   188.29
2022.29    0.250   188.01
2022.39    0.248   187.72
2022.49    0.247   187.44
2022.59    0.245   187.14
2022.69    0.244   186.85
2022.79    0.242   186.55
2022.89    0.241   186.24
2022.99    0.239   185.93
2023.09    0.237   185.62
2023.19    0.236   185.30
2023.29    0.234   184.98
2023.39    0.232   184.65
2023.49    0.230   184.32
2023.59    0.228   183.98
2023.69    0.226   183.64
2023.79    0.224   183.29
2023.89    0.222   182.93
2023.99    0.220   182.57
2024.09    0.218   182.20
2024.19    0.216   181.82
2024.29    0.214   181.44
2024.39    0.212   181.05
2024.49    0.210   180.65
2024.59    0.208   180.24
2024.69    0.205   179.82
2024.79    0.203   179.40
2024.89    0.201   178.96
2024.99    0.198   178.52
2025.09    0.196   178.06
2025.19    0.194   177.59
2025.29    0.191   177.11
2025.39    0.189   176.62
2025.49    0.186   176.11
2025.59    0.184   175.60
2025.69    0.181   175.06
2025.79    0.179   174.51
2025.89    0.176   173.95
2025.99    0.173   173.37
2026.09    0.171   172.77
2026.19    0.168   172.15
2026.29    0.166   171.51
2026.39    0.163   170.86
2026.49    0.160   170.18
2026.59    0.158   169.47
2026.69    0.155   168.74
2026.79    0.152   167.99
2026.89    0.149   167.21
2026.99    0.147   166.40
2027.09    0.144   165.56
2027.19    0.141   164.68
2027.29    0.138   163.77
2027.39    0.136   162.83
2027.49    0.133   161.84
2027.59    0.130   160.81
2027.69    0.127   159.74
2027.79    0.125   158.62
2027.89    0.122   157.46
2027.99    0.119   156.24
2028.09    0.117   154.96
2028.19    0.114   153.63
2028.29    0.111   152.23
2028.39    0.109   150.76
2028.49    0.106   149.23
2028.59    0.104   147.62
2028.69    0.101   145.94
2028.79    0.099   144.17
2028.89    0.097   142.32
2028.99    0.095   140.38
2029.09    0.092   138.35
2029.19    0.090   136.23
2029.29    0.089   134.01
2029.39    0.087   131.70
2029.49    0.085   129.29
2029.59    0.083   126.78
2029.69    0.082   124.18
2029.79    0.081   121.50
2029.89    0.080   118.73
2029.99    0.079   115.89
2030.09    0.078   112.98
2030.19    0.077   110.02
2030.29    0.077   107.01
2030.39    0.076   103.98
2030.49    0.076   100.93
2030.59    0.076    97.88
2030.69    0.077    94.85
2030.79    0.077    91.85
2030.89    0.078    88.89
2030.99    0.079    85.99
2031.09    0.080    83.15
2031.19    0.081    80.38
2031.29    0.082    77.70
2031.39    0.083    75.10
2031.49    0.085    72.60
2031.59    0.087    70.18
2031.69    0.088    67.86
2031.79    0.090    65.64
2031.89    0.092    63.50
2031.99    0.094    61.46
2032.09    0.096    59.50
2032.19    0.098    57.63
2032.29    0.101    55.84
2032.39    0.103    54.12
2032.49    0.105    52.48
2032.59    0.107    50.91
2032.69    0.110    49.40
2032.79    0.112    47.96
2032.89    0.114    46.57
2032.99    0.117    45.24
2033.09    0.119    43.96
2033.19    0.121    42.73
2033.29    0.123    41.54
2033.39    0.126    40.40
2033.49    0.128    39.29
2033.59    0.130    38.23
2033.69    0.132    37.19
2033.79    0.134    36.19
2033.89    0.136    35.22
2033.99    0.138    34.28
2034.09    0.140    33.36
2034.19    0.142    32.46
2034.29    0.143    31.59
2034.39    0.145    30.74
2034.49    0.147    29.90
2034.59    0.148    29.09
2034.69    0.150    28.28
2034.79    0.151    27.50
2034.89    0.152    26.72
2034.99    0.153    25.96
2035.09    0.154    25.21
2035.19    0.155    24.46
2035.29    0.156    23.73
2035.39    0.156    23.00
2035.49    0.157    22.27
2035.59    0.157    21.55
2035.69    0.158    20.84
2035.79    0.158    20.12
2035.89    0.158    19.41
2035.99    0.158    18.69
2036.09    0.158    17.98
2036.19    0.157    17.26
2036.29    0.157    16.54
2036.39    0.156    15.82
2036.49    0.156    15.09
2036.59    0.155    14.35
2036.69    0.154    13.60
2036.79    0.153    12.85
2036.89    0.151    12.08
2036.99    0.150    11.30
2037.09    0.149    10.50
2037.19    0.147     9.69
2037.29    0.146     8.86
2037.39    0.144     8.02
2037.49    0.142     7.15
2037.59    0.140     6.25
2037.69    0.138     5.33
2037.79    0.136     4.39
2037.89    0.134     3.41
2037.99    0.131     2.40
2038.09    0.129     1.35
2038.19    0.126     0.26
2038.29    0.124   359.12
2038.39    0.121   357.94
2038.49    0.119   356.71
2038.59    0.116   355.42
2038.69    0.113   354.06
2038.79    0.110   352.65
2038.89    0.108   351.15
2038.99    0.105   349.58
2039.09    0.102   347.93
2039.19    0.099   346.18
2039.29    0.097   344.33
2039.39    0.094   342.37
2039.49    0.091   340.30
2039.59    0.089   338.10
2039.69    0.086   335.77
2039.79    0.084   333.30
2039.89    0.081   330.68
2039.99    0.079   327.92
2040.09    0.077   324.99
2040.19    0.075   321.91
2040.29    0.073   318.68
2040.39    0.072   315.29
2040.49    0.070   311.77
2040.59    0.069   308.12
2040.69    0.068   304.36
2040.79    0.068   300.53
2040.89    0.067   296.64
2040.99    0.067   292.73
2041.09    0.068   288.82
2041.19    0.068   284.96
2041.29    0.069   281.17
2041.39    0.070   277.47



 

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 17:19:35


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