Double Star Calculator - Orbit

Orbital Elements for COU2084AA,AB
WDS: COU2084AA,AB WDS ID/Discoverer
P: 50.340 Orbital period (years)
a: 0.246 Semi-major axis (arcseconds)
i: 112.9 Inclination (degrees)
Ω: 84.7 Longitude of ascending node (degrees)
T: 2012.390 Epoch of periastron passage (year)
e: 0.652 Eccentricity
ω: 137.0 Longitude of periastron (degrees)
Start-Year: 1999.83 Year
End-Year: 2050.17 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for COU2084AA,AB
Position: 093522.50+395747.7 Epoch-2000 right ascension and declination
WDS-ID: 09354+3958 WDS designation
Discoverer Code: COU2084AA,AB Discover designation and components
ADS number: 7438 Aitken Double Star catalog
HD number: 82780 HD catalog number
Hipparcos number: 47053 Hipparcos catalog number
V1: 6.98 Magnitude of the primary
V2: 8.79 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2018 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: Tok2019e Reference

Double Star Orbit for COU2084AA,AB



WDS 6th Orbit including measures of COU2084AA,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 COU2084AA,AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.183   127.69
--------------------------
1999.83    0.322    90.34
1999.93    0.321    90.22
2000.03    0.320    90.09
2000.13    0.319    89.97
2000.23    0.318    89.84
2000.33    0.317    89.71
2000.43    0.316    89.59
2000.53    0.315    89.46
2000.63    0.314    89.33
2000.73    0.313    89.20
2000.83    0.312    89.07
2000.93    0.311    88.94
2001.03    0.310    88.80
2001.13    0.308    88.67
2001.23    0.307    88.54
2001.33    0.306    88.40
2001.43    0.305    88.26
2001.53    0.304    88.13
2001.63    0.302    87.99
2001.73    0.301    87.85
2001.83    0.300    87.70
2001.93    0.299    87.56
2002.03    0.297    87.42
2002.13    0.296    87.27
2002.23    0.295    87.13
2002.33    0.293    86.98
2002.43    0.292    86.83
2002.53    0.290    86.68
2002.63    0.289    86.53
2002.73    0.287    86.37
2002.83    0.286    86.22
2002.93    0.284    86.06
2003.03    0.283    85.90
2003.13    0.281    85.74
2003.23    0.279    85.58
2003.33    0.278    85.41
2003.43    0.276    85.24
2003.53    0.274    85.08
2003.63    0.272    84.91
2003.73    0.271    84.73
2003.83    0.269    84.56
2003.93    0.267    84.38
2004.03    0.265    84.20
2004.13    0.263    84.02
2004.23    0.261    83.83
2004.33    0.259    83.64
2004.43    0.257    83.45
2004.53    0.255    83.26
2004.63    0.253    83.06
2004.73    0.251    82.86
2004.83    0.249    82.65
2004.93    0.247    82.45
2005.03    0.245    82.23
2005.13    0.242    82.02
2005.23    0.240    81.80
2005.33    0.238    81.58
2005.43    0.236    81.35
2005.53    0.233    81.12
2005.63    0.231    80.88
2005.73    0.228    80.64
2005.83    0.226    80.39
2005.93    0.223    80.14
2006.03    0.221    79.88
2006.13    0.218    79.61
2006.23    0.216    79.34
2006.33    0.213    79.06
2006.43    0.210    78.78
2006.53    0.207    78.48
2006.63    0.205    78.18
2006.73    0.202    77.87
2006.83    0.199    77.56
2006.93    0.196    77.23
2007.03    0.193    76.89
2007.13    0.190    76.54
2007.23    0.187    76.18
2007.33    0.184    75.81
2007.43    0.180    75.42
2007.53    0.177    75.02
2007.63    0.174    74.61
2007.73    0.171    74.18
2007.83    0.167    73.73
2007.93    0.164    73.26
2008.03    0.160    72.78
2008.13    0.157    72.27
2008.23    0.153    71.73
2008.33    0.149    71.18
2008.43    0.146    70.59
2008.53    0.142    69.97
2008.63    0.138    69.32
2008.73    0.134    68.63
2008.83    0.130    67.90
2008.93    0.126    67.13
2009.03    0.122    66.30
2009.13    0.118    65.42
2009.23    0.114    64.47
2009.33    0.110    63.45
2009.43    0.106    62.35
2009.53    0.101    61.16
2009.63    0.097    59.86
2009.73    0.093    58.44
2009.83    0.088    56.88
2009.93    0.084    55.15
2010.03    0.079    53.24
2010.13    0.075    51.10
2010.23    0.071    48.69
2010.33    0.066    45.98
2010.43    0.062    42.88
2010.53    0.058    39.34
2010.63    0.054    35.27
2010.73    0.050    30.57
2010.83    0.047    25.16
2010.93    0.044    18.94
2011.03    0.041    11.87
2011.13    0.039     4.00
2011.23    0.038   355.47
2011.33    0.038   346.58
2011.43    0.038   337.68
2011.53    0.039   329.14
2011.63    0.041   321.25
2011.73    0.044   314.15
2011.83    0.047   307.87
2011.93    0.050   302.38
2012.03    0.053   297.58
2012.13    0.057   293.38
2012.23    0.061   289.69
2012.33    0.064   286.43
2012.43    0.068   283.52
2012.53    0.072   280.90
2012.63    0.075   278.52
2012.73    0.078   276.35
2012.83    0.081   274.35
2012.93    0.084   272.49
2013.03    0.087   270.75
2013.13    0.090   269.11
2013.23    0.092   267.56
2013.33    0.094   266.08
2013.43    0.096   264.66
2013.53    0.098   263.29
2013.63    0.099   261.97
2013.73    0.100   260.69
2013.83    0.102   259.43
2013.93    0.102   258.21
2014.03    0.103   257.00
2014.13    0.104   255.81
2014.23    0.105   254.64
2014.33    0.105   253.48
2014.43    0.105   252.32
2014.53    0.106   251.18
2014.63    0.106   250.03
2014.73    0.106   248.89
2014.83    0.106   247.75
2014.93    0.106   246.60
2015.03    0.105   245.46
2015.13    0.105   244.30
2015.23    0.105   243.15
2015.33    0.104   241.98
2015.43    0.104   240.81
2015.53    0.104   239.62
2015.63    0.103   238.43
2015.73    0.103   237.23
2015.83    0.102   236.01
2015.93    0.102   234.78
2016.03    0.101   233.54
2016.13    0.101   232.29
2016.23    0.100   231.02
2016.33    0.100   229.74
2016.43    0.099   228.44
2016.53    0.098   227.13
2016.63    0.098   225.80
2016.73    0.097   224.46
2016.83    0.097   223.11
2016.93    0.096   221.74
2017.03    0.096   220.35
2017.13    0.095   218.96
2017.23    0.095   217.55
2017.33    0.095   216.12
2017.43    0.094   214.69
2017.53    0.094   213.24
2017.63    0.093   211.79
2017.73    0.093   210.32
2017.83    0.093   208.85
2017.93    0.093   207.37
2018.03    0.093   205.88
2018.13    0.092   204.39
2018.23    0.092   202.89
2018.33    0.092   201.39
2018.43    0.092   199.89
2018.53    0.092   198.39
2018.63    0.092   196.89
2018.73    0.092   195.40
2018.83    0.093   193.90
2018.93    0.093   192.42
2019.03    0.093   190.94
2019.13    0.093   189.47
2019.23    0.094   188.01
2019.33    0.094   186.57
2019.43    0.095   185.13
2019.53    0.095   183.71
2019.63    0.095   182.30
2019.73    0.096   180.91
2019.83    0.097   179.53
2019.93    0.097   178.17
2020.03    0.098   176.83
2020.13    0.099   175.51
2020.23    0.099   174.21
2020.33    0.100   172.92
2020.43    0.101   171.66
2020.53    0.102   170.42
2020.63    0.103   169.20
2020.73    0.104   168.00
2020.83    0.105   166.82
2020.93    0.106   165.67
2021.03    0.107   164.53
2021.13    0.108   163.42
2021.23    0.109   162.33
2021.33    0.110   161.26
2021.43    0.111   160.21
2021.53    0.112   159.18
2021.63    0.113   158.18
2021.73    0.114   157.19
2021.83    0.116   156.23
2021.93    0.117   155.28
2022.03    0.118   154.36
2022.13    0.119   153.45
2022.23    0.121   152.56
2022.33    0.122   151.70
2022.43    0.123   150.85
2022.53    0.125   150.02
2022.63    0.126   149.20
2022.73    0.127   148.41
2022.83    0.129   147.63
2022.93    0.130   146.87
2023.03    0.132   146.12
2023.13    0.133   145.39
2023.23    0.134   144.68
2023.33    0.136   143.98
2023.43    0.137   143.29
2023.53    0.139   142.62
2023.63    0.140   141.96
2023.73    0.142   141.32
2023.83    0.143   140.69
2023.93    0.145   140.07
2024.03    0.146   139.47
2024.13    0.148   138.87
2024.23    0.149   138.29
2024.33    0.151   137.72
2024.43    0.152   137.17
2024.53    0.154   136.62
2024.63    0.155   136.08
2024.73    0.157   135.56
2024.83    0.158   135.04
2024.93    0.160   134.53
2025.03    0.161   134.04
2025.13    0.163   133.55
2025.23    0.164   133.07
2025.33    0.166   132.60
2025.43    0.167   132.14
2025.53    0.169   131.69
2025.63    0.170   131.24
2025.73    0.172   130.81
2025.83    0.173   130.38
2025.93    0.175   129.96
2026.03    0.176   129.54
2026.13    0.178   129.13
2026.23    0.179   128.73
2026.33    0.181   128.34
2026.43    0.182   127.95
2026.53    0.184   127.57
2026.63    0.185   127.20
2026.73    0.187   126.83
2026.83    0.188   126.47
2026.93    0.190   126.11
2027.03    0.191   125.76
2027.13    0.193   125.41
2027.23    0.194   125.07
2027.33    0.196   124.74
2027.43    0.197   124.41
2027.53    0.199   124.08
2027.63    0.200   123.76
2027.73    0.202   123.45
2027.83    0.203   123.14
2027.93    0.205   122.83
2028.03    0.206   122.53
2028.13    0.208   122.23
2028.23    0.209   121.94
2028.33    0.211   121.65
2028.43    0.212   121.36
2028.53    0.214   121.08
2028.63    0.215   120.80
2028.73    0.216   120.53
2028.83    0.218   120.26
2028.93    0.219   119.99
2029.03    0.221   119.73
2029.13    0.222   119.47
2029.23    0.224   119.21
2029.33    0.225   118.95
2029.43    0.226   118.70
2029.53    0.228   118.46
2029.63    0.229   118.21
2029.73    0.231   117.97
2029.83    0.232   117.73
2029.93    0.233   117.50
2030.03    0.235   117.26
2030.13    0.236   117.03
2030.23    0.237   116.80
2030.33    0.239   116.58
2030.43    0.240   116.35
2030.53    0.241   116.13
2030.63    0.243   115.92
2030.73    0.244   115.70
2030.83    0.245   115.49
2030.93    0.247   115.28
2031.03    0.248   115.07
2031.13    0.249   114.86
2031.23    0.250   114.66
2031.33    0.252   114.45
2031.43    0.253   114.25
2031.53    0.254   114.06
2031.63    0.256   113.86
2031.73    0.257   113.66
2031.83    0.258   113.47
2031.93    0.259   113.28
2032.03    0.261   113.09
2032.13    0.262   112.90
2032.23    0.263   112.72
2032.33    0.264   112.54
2032.43    0.265   112.35
2032.53    0.267   112.17
2032.63    0.268   111.99
2032.73    0.269   111.82
2032.83    0.270   111.64
2032.93    0.271   111.47
2033.03    0.272   111.29
2033.13    0.274   111.12
2033.23    0.275   110.95
2033.33    0.276   110.78
2033.43    0.277   110.62
2033.53    0.278   110.45
2033.63    0.279   110.29
2033.73    0.280   110.12
2033.83    0.281   109.96
2033.93    0.282   109.80
2034.03    0.284   109.64
2034.13    0.285   109.48
2034.23    0.286   109.33
2034.33    0.287   109.17
2034.43    0.288   109.02
2034.53    0.289   108.86
2034.63    0.290   108.71
2034.73    0.291   108.56
2034.83    0.292   108.41
2034.93    0.293   108.26
2035.03    0.294   108.11
2035.13    0.295   107.96
2035.23    0.296   107.82
2035.33    0.297   107.67
2035.43    0.298   107.53
2035.53    0.299   107.38
2035.63    0.300   107.24
2035.73    0.301   107.10
2035.83    0.302   106.96
2035.93    0.302   106.82
2036.03    0.303   106.68
2036.13    0.304   106.54
2036.23    0.305   106.40
2036.33    0.306   106.27
2036.43    0.307   106.13
2036.53    0.308   105.99
2036.63    0.309   105.86
2036.73    0.309   105.73
2036.83    0.310   105.59
2036.93    0.311   105.46
2037.03    0.312   105.33
2037.13    0.313   105.20
2037.23    0.314   105.07
2037.33    0.314   104.94
2037.43    0.315   104.81
2037.53    0.316   104.68
2037.63    0.317   104.55
2037.73    0.317   104.43
2037.83    0.318   104.30
2037.93    0.319   104.18
2038.03    0.320   104.05
2038.13    0.320   103.93
2038.23    0.321   103.80
2038.33    0.322   103.68
2038.43    0.322   103.55
2038.53    0.323   103.43
2038.63    0.324   103.31
2038.73    0.324   103.19
2038.83    0.325   103.07
2038.93    0.326   102.95
2039.03    0.326   102.83
2039.13    0.327   102.71
2039.23    0.328   102.59
2039.33    0.328   102.47
2039.43    0.329   102.35
2039.53    0.329   102.23
2039.63    0.330   102.12
2039.73    0.331   102.00
2039.83    0.331   101.88
2039.93    0.332   101.77
2040.03    0.332   101.65
2040.13    0.333   101.53
2040.23    0.333   101.42
2040.33    0.334   101.30
2040.43    0.334   101.19
2040.53    0.335   101.08
2040.63    0.335   100.96
2040.73    0.336   100.85
2040.83    0.336   100.74
2040.93    0.336   100.62
2041.03    0.337   100.51
2041.13    0.337   100.40
2041.23    0.338   100.29
2041.33    0.338   100.17
2041.43    0.338   100.06
2041.53    0.339    99.95
2041.63    0.339    99.84
2041.73    0.340    99.73
2041.83    0.340    99.62
2041.93    0.340    99.51
2042.03    0.340    99.40
2042.13    0.341    99.29
2042.23    0.341    99.18
2042.33    0.341    99.07
2042.43    0.342    98.96
2042.53    0.342    98.85
2042.63    0.342    98.74
2042.73    0.342    98.63
2042.83    0.343    98.52
2042.93    0.343    98.41
2043.03    0.343    98.30
2043.13    0.343    98.20
2043.23    0.343    98.09
2043.33    0.344    97.98
2043.43    0.344    97.87
2043.53    0.344    97.76
2043.63    0.344    97.66
2043.73    0.344    97.55
2043.83    0.344    97.44
2043.93    0.344    97.33
2044.03    0.344    97.22
2044.13    0.344    97.12
2044.23    0.344    97.01
2044.33    0.344    96.90
2044.43    0.344    96.79
2044.53    0.344    96.69
2044.63    0.344    96.58
2044.73    0.344    96.47
2044.83    0.344    96.36
2044.93    0.344    96.26
2045.03    0.344    96.15
2045.13    0.344    96.04
2045.23    0.344    95.93
2045.33    0.344    95.82
2045.43    0.344    95.72
2045.53    0.344    95.61
2045.63    0.344    95.50
2045.73    0.344    95.39
2045.83    0.343    95.28
2045.93    0.343    95.18
2046.03    0.343    95.07
2046.13    0.343    94.96
2046.23    0.343    94.85
2046.33    0.342    94.74
2046.43    0.342    94.63
2046.53    0.342    94.52
2046.63    0.342    94.41
2046.73    0.341    94.30
2046.83    0.341    94.19
2046.93    0.341    94.08
2047.03    0.340    93.97
2047.13    0.340    93.86
2047.23    0.340    93.75
2047.33    0.339    93.64
2047.43    0.339    93.53
2047.53    0.338    93.42
2047.63    0.338    93.31
2047.73    0.338    93.20
2047.83    0.337    93.08
2047.93    0.337    92.97
2048.03    0.336    92.86
2048.13    0.336    92.75
2048.23    0.335    92.63
2048.33    0.335    92.52
2048.43    0.334    92.40
2048.53    0.333    92.29
2048.63    0.333    92.17
2048.73    0.332    92.06
2048.83    0.332    91.94
2048.93    0.331    91.83
2049.03    0.330    91.71
2049.13    0.330    91.59
2049.23    0.329    91.47
2049.33    0.328    91.36
2049.43    0.327    91.24
2049.53    0.327    91.12
2049.63    0.326    91.00
2049.73    0.325    90.88
2049.83    0.324    90.76
2049.93    0.324    90.64
2050.03    0.323    90.51
2050.13    0.322    90.39






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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.


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Double Star Calculator: Version 1.2 ($Rev: 2397 $)
Report created: 2026-06-25 16:19:18



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