Double Star Calculator - Orbit

Orbital Elements for COU14

WDS:	COU14	WDS ID/Discoverer
P:	26.346	Orbital period (years)
a:	0.36245	Semi-major axis (arcseconds)
i:	70.379	Inclination (degrees)
Ω:	230.698	Longitude of ascending node (degrees)
T:	1989.881	Epoch of periastron passage (year)
e:	0.23	Eccentricity
ω:	250.23	Longitude of periastron (degrees)
Start-Year:	2011.8268233625301	Year
End-Year:	2038.1731766374699	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for COU14
Position:	215008.64+171709.4	Epoch-2000 right ascension and declination
WDS-ID:	21501+1717	WDS designation
Discoverer Code:	COU14	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	207652	HD catalog number
Hipparcos number:	107788	Hipparcos catalog number
V1:	5.74	Magnitude of the primary
V2:	6.94	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2008	Date of last observation
Orbit grade:	2	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Mut2010b	Reference

Double Star Orbit for COU14

WDS 6th Orbit including measures of COU14

-- 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 COU14

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.326   248.79
--------------------------
2011.83    0.327    45.33
2011.93    0.327    45.88
2012.03    0.327    46.43
2012.13    0.326    46.98
2012.23    0.326    47.53
2012.33    0.325    48.08
2012.43    0.324    48.64
2012.53    0.323    49.20
2012.63    0.321    49.77
2012.73    0.320    50.34
2012.83    0.318    50.92
2012.93    0.316    51.50
2013.03    0.313    52.09
2013.13    0.311    52.70
2013.23    0.308    53.31
2013.33    0.305    53.94
2013.43    0.301    54.57
2013.53    0.298    55.23
2013.63    0.294    55.90
2013.73    0.290    56.59
2013.83    0.286    57.29
2013.93    0.281    58.02
2014.03    0.276    58.78
2014.13    0.271    59.56
2014.23    0.266    60.38
2014.33    0.260    61.22
2014.43    0.255    62.11
2014.53    0.249    63.03
2014.63    0.243    64.00
2014.73    0.236    65.02
2014.83    0.230    66.10
2014.93    0.223    67.25
2015.03    0.216    68.46
2015.13    0.209    69.76
2015.23    0.202    71.14
2015.33    0.195    72.63
2015.43    0.188    74.24
2015.53    0.180    75.97
2015.63    0.173    77.86
2015.73    0.165    79.92
2015.83    0.158    82.17
2015.93    0.150    84.64
2016.03    0.143    87.37
2016.13    0.136    90.38
2016.23    0.129    93.72
2016.33    0.123    97.42
2016.43    0.117   101.51
2016.53    0.111   106.04
2016.63    0.106   111.02
2016.73    0.102   116.44
2016.83    0.099   122.28
2016.93    0.096   128.47
2017.03    0.095   134.89
2017.13    0.095   141.42
2017.23    0.096   147.90
2017.33    0.098   154.18
2017.43    0.101   160.16
2017.53    0.105   165.73
2017.63    0.109   170.87
2017.73    0.115   175.56
2017.83    0.121   179.80
2017.93    0.127   183.64
2018.03    0.134   187.09
2018.13    0.141   190.21
2018.23    0.148   193.02
2018.33    0.156   195.56
2018.43    0.163   197.87
2018.53    0.171   199.98
2018.63    0.178   201.90
2018.73    0.186   203.67
2018.83    0.194   205.29
2018.93    0.201   206.80
2019.03    0.209   208.19
2019.13    0.217   209.49
2019.23    0.224   210.70
2019.33    0.231   211.83
2019.43    0.238   212.89
2019.53    0.245   213.90
2019.63    0.252   214.84
2019.73    0.259   215.74
2019.83    0.266   216.60
2019.93    0.272   217.41
2020.03    0.278   218.18
2020.13    0.284   218.93
2020.23    0.290   219.64
2020.33    0.296   220.32
2020.43    0.301   220.98
2020.53    0.307   221.61
2020.63    0.312   222.22
2020.73    0.317   222.82
2020.83    0.322   223.39
2020.93    0.326   223.95
2021.03    0.331   224.49
2021.13    0.335   225.02
2021.23    0.339   225.54
2021.33    0.343   226.04
2021.43    0.347   226.53
2021.53    0.350   227.02
2021.63    0.354   227.49
2021.73    0.357   227.95
2021.83    0.360   228.41
2021.93    0.363   228.86
2022.03    0.365   229.30
2022.13    0.368   229.74
2022.23    0.370   230.17
2022.33    0.372   230.60
2022.43    0.374   231.02
2022.53    0.375   231.44
2022.63    0.377   231.86
2022.73    0.378   232.27
2022.83    0.379   232.68
2022.93    0.380   233.08
2023.03    0.381   233.49
2023.13    0.382   233.89
2023.23    0.383   234.29
2023.33    0.383   234.69
2023.43    0.383   235.09
2023.53    0.383   235.49
2023.63    0.383   235.89
2023.73    0.383   236.29
2023.83    0.383   236.69
2023.93    0.382   237.09
2024.03    0.381   237.49
2024.13    0.381   237.90
2024.23    0.380   238.30
2024.33    0.379   238.71
2024.43    0.377   239.12
2024.53    0.376   239.54
2024.63    0.375   239.95
2024.73    0.373   240.37
2024.83    0.371   240.80
2024.93    0.369   241.22
2025.03    0.367   241.66
2025.13    0.365   242.09
2025.23    0.363   242.54
2025.33    0.361   242.98
2025.43    0.358   243.44
2025.53    0.356   243.90
2025.63    0.353   244.36
2025.73    0.351   244.84
2025.83    0.348   245.32
2025.93    0.345   245.81
2026.03    0.342   246.31
2026.13    0.339   246.81
2026.23    0.335   247.33
2026.33    0.332   247.86
2026.43    0.329   248.39
2026.53    0.325   248.94
2026.63    0.322   249.50
2026.73    0.318   250.07
2026.83    0.315   250.66
2026.93    0.311   251.26
2027.03    0.307   251.88
2027.13    0.303   252.51
2027.23    0.299   253.15
2027.33    0.295   253.82
2027.43    0.291   254.50
2027.53    0.287   255.20
2027.63    0.283   255.92
2027.73    0.279   256.67
2027.83    0.274   257.44
2027.93    0.270   258.23
2028.03    0.266   259.04
2028.13    0.262   259.89
2028.23    0.257   260.76
2028.33    0.253   261.66
2028.43    0.249   262.59
2028.53    0.244   263.56
2028.63    0.240   264.56
2028.73    0.235   265.60
2028.83    0.231   266.68
2028.93    0.227   267.80
2029.03    0.222   268.96
2029.13    0.218   270.18
2029.23    0.214   271.43
2029.33    0.209   272.75
2029.43    0.205   274.11
2029.53    0.201   275.53
2029.63    0.197   277.01
2029.73    0.193   278.55
2029.83    0.189   280.16
2029.93    0.185   281.83
2030.03    0.182   283.57
2030.13    0.178   285.38
2030.23    0.175   287.27
2030.33    0.171   289.23
2030.43    0.168   291.26
2030.53    0.165   293.37
2030.63    0.162   295.55
2030.73    0.160   297.81
2030.83    0.157   300.14
2030.93    0.155   302.54
2031.03    0.153   305.00
2031.13    0.152   307.53
2031.23    0.150   310.10
2031.33    0.149   312.72
2031.43    0.148   315.38
2031.53    0.147   318.07
2031.63    0.147   320.77
2031.73    0.147   323.48
2031.83    0.147   326.20
2031.93    0.148   328.89
2032.03    0.148   331.57
2032.13    0.149   334.21
2032.23    0.151   336.82
2032.33    0.152   339.37
2032.43    0.154   341.87
2032.53    0.156   344.31
2032.63    0.158   346.68
2032.73    0.161   348.99
2032.83    0.164   351.22
2032.93    0.166   353.37
2033.03    0.169   355.46
2033.13    0.173   357.46
2033.23    0.176   359.40
2033.33    0.179     1.26
2033.43    0.183     3.05
2033.53    0.186     4.77
2033.63    0.190     6.42
2033.73    0.194     8.01
2033.83    0.198     9.54
2033.93    0.202    11.01
2034.03    0.206    12.42
2034.13    0.210    13.77
2034.23    0.214    15.08
2034.33    0.218    16.33
2034.43    0.222    17.54
2034.53    0.226    18.71
2034.63    0.231    19.83
2034.73    0.235    20.92
2034.83    0.239    21.96
2034.93    0.243    22.97
2035.03    0.247    23.95
2035.13    0.251    24.90
2035.23    0.255    25.81
2035.33    0.259    26.70
2035.43    0.263    27.56
2035.53    0.267    28.40
2035.63    0.270    29.22
2035.73    0.274    30.01
2035.83    0.278    30.78
2035.93    0.281    31.53
2036.03    0.284    32.26
2036.13    0.288    32.98
2036.23    0.291    33.68
2036.33    0.294    34.37
2036.43    0.297    35.04
2036.53    0.300    35.70
2036.63    0.303    36.34
2036.73    0.305    36.98
2036.83    0.308    37.60
2036.93    0.310    38.21
2037.03    0.313    38.82
2037.13    0.315    39.41
2037.23    0.317    40.00
2037.33    0.318    40.58
2037.43    0.320    41.16
2037.53    0.321    41.73
2037.63    0.323    42.30
2037.73    0.324    42.86
2037.83    0.325    43.41
2037.93    0.326    43.97
2038.03    0.326    44.52
2038.13    0.327    45.07

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 18:32:35