Double Star Calculator - Orbit

Orbital Elements for COU114
WDS: COU114 WDS ID/Discoverer
P: 105.000 Orbital period (years)
a: 0.305 Semi-major axis (arcseconds)
i: 77.2 Inclination (degrees)
Ω: 16.0 Longitude of ascending node (degrees)
T: 1943.830 Epoch of periastron passage (year)
e: 0.55 Eccentricity
ω: 66.0 Longitude of periastron (degrees)
Start-Year: 1972.5 Year
End-Year: 2077.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for COU114
Position: 174147.72+213006.4 Epoch-2000 right ascension and declination
WDS-ID: 17418+2130 WDS designation
Discoverer Code: COU114 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 160935 HD catalog number
Hipparcos number: 86596 Hipparcos catalog number
V1: 7.25 Magnitude of the primary
V2: 8.10 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: Flags
Ephemerides: Ephemerides
Code: Cou1999b Reference

Double Star Orbit for COU114



WDS 6th Orbit including measures of COU114

-- 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 COU114
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.140   344.20
--------------------------
1972.50    0.334   204.57
1973.50    0.333   205.10
1974.50    0.331   205.64
1975.50    0.329   206.18
1976.50    0.327   206.73
1977.50    0.324   207.28
1978.50    0.321   207.85
1979.50    0.317   208.43
1980.50    0.313   209.03
1981.50    0.309   209.64
1982.50    0.304   210.26
1983.50    0.299   210.91
1984.50    0.294   211.58
1985.50    0.288   212.28
1986.50    0.283   213.00
1987.50    0.277   213.76
1988.50    0.270   214.55
1989.50    0.264   215.38
1990.50    0.257   216.25
1991.50    0.250   217.16
1992.50    0.243   218.13
1993.50    0.236   219.16
1994.50    0.229   220.26
1995.50    0.221   221.42
1996.50    0.213   222.67
1997.50    0.206   224.02
1998.50    0.198   225.47
1999.50    0.190   227.03
2000.50    0.182   228.74
2001.50    0.174   230.59
2002.50    0.167   232.62
2003.50    0.159   234.86
2004.50    0.151   237.32
2005.50    0.144   240.04
2006.50    0.136   243.05
2007.50    0.129   246.41
2008.50    0.123   250.13
2009.50    0.116   254.27
2010.50    0.111   258.86
2011.50    0.106   263.91
2012.50    0.101   269.43
2013.50    0.098   275.38
2014.50    0.096   281.68
2015.50    0.094   288.22
2016.50    0.094   294.86
2017.50    0.095   301.44
2018.50    0.097   307.81
2019.50    0.100   313.85
2020.50    0.104   319.49
2021.50    0.109   324.66
2022.50    0.115   329.39
2023.50    0.120   333.67
2024.50    0.127   337.54
2025.50    0.133   341.03
2026.50    0.140   344.20
2027.50    0.147   347.08
2028.50    0.153   349.70
2029.50    0.160   352.11
2030.50    0.166   354.33
2031.50    0.172   356.38
2032.50    0.178   358.30
2033.50    0.183     0.11
2034.50    0.188     1.82
2035.50    0.192     3.46
2036.50    0.195     5.03
2037.50    0.197     6.57
2038.50    0.197     8.09
2039.50    0.196     9.62
2040.50    0.194    11.16
2041.50    0.189    12.77
2042.50    0.182    14.49
2043.50    0.172    16.37
2044.50    0.158    18.54
2045.50    0.142    21.15
2046.50    0.121    24.58
2047.50    0.097    29.56
2048.50    0.071    38.06
2049.50    0.046    56.47
2050.50    0.031   102.21
2051.50    0.044   149.81
2052.50    0.070   169.19
2053.50    0.097   177.88
2054.50    0.124   182.78
2055.50    0.148   185.98
2056.50    0.171   188.30
2057.50    0.192   190.10
2058.50    0.211   191.55
2059.50    0.228   192.78
2060.50    0.243   193.85
2061.50    0.257   194.79
2062.50    0.269   195.64
2063.50    0.280   196.43
2064.50    0.290   197.15
2065.50    0.298   197.84
2066.50    0.306   198.48
2067.50    0.312   199.10
2068.50    0.318   199.70
2069.50    0.322   200.28
2070.50    0.326   200.84
2071.50    0.329   201.39
2072.50    0.332   201.93
2073.50    0.333   202.46
2074.50    0.334   202.99
2075.50    0.335   203.52
2076.50    0.335   204.05






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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 17:41:59



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