Double Star Calculator - Orbit

Orbital Elements for COU1271

WDS:	COU1271	WDS ID/Discoverer
P:	137.830	Orbital period (years)
a:	0.38	Semi-major axis (arcseconds)
i:	0.0	Inclination (degrees)
Ω:	0.0	Longitude of ascending node (degrees)
T:	0.000	Epoch of periastron passage (year)
e:	0.0	Eccentricity
ω:	0.0	Longitude of periastron (degrees)
Start-Year:	1956.085	Year
End-Year:	2093.915	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for COU1271
Position:	150747.23+395558.3	Epoch-2000 right ascension and declination
WDS-ID:	15078+3956	WDS designation
Discoverer Code:	COU1271	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	134303	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	9.0	Magnitude of the primary
V2:	10.0	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	5	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 COU1271

WDS 6th Orbit including measures of COU1271

-- 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 COU1271

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.380   253.04
--------------------------
1956.09    0.380    69.12
1957.09    0.380    71.74
1958.09    0.380    74.35
1959.09    0.380    76.96
1960.09    0.380    79.57
1961.09    0.380    82.18
1962.09    0.380    84.80
1963.09    0.380    87.41
1964.09    0.380    90.02
1965.09    0.380    92.63
1966.09    0.380    95.24
1967.09    0.380    97.86
1968.09    0.380   100.47
1969.09    0.380   103.08
1970.09    0.380   105.69
1971.09    0.380   108.30
1972.09    0.380   110.91
1973.09    0.380   113.53
1974.09    0.380   116.14
1975.09    0.380   118.75
1976.09    0.380   121.36
1977.09    0.380   123.97
1978.09    0.380   126.59
1979.09    0.380   129.20
1980.09    0.380   131.81
1981.09    0.380   134.42
1982.09    0.380   137.03
1983.09    0.380   139.65
1984.09    0.380   142.26
1985.09    0.380   144.87
1986.09    0.380   147.48
1987.09    0.380   150.09
1988.09    0.380   152.71
1989.09    0.380   155.32
1990.09    0.380   157.93
1991.09    0.380   160.54
1992.09    0.380   163.15
1993.09    0.380   165.77
1994.09    0.380   168.38
1995.09    0.380   170.99
1996.09    0.380   173.60
1997.09    0.380   176.21
1998.09    0.380   178.82
1999.09    0.380   181.44
2000.09    0.380   184.05
2001.09    0.380   186.66
2002.09    0.380   189.27
2003.09    0.380   191.88
2004.09    0.380   194.50
2005.09    0.380   197.11
2006.09    0.380   199.72
2007.09    0.380   202.33
2008.09    0.380   204.94
2009.09    0.380   207.56
2010.09    0.380   210.17
2011.09    0.380   212.78
2012.09    0.380   215.39
2013.09    0.380   218.00
2014.09    0.380   220.62
2015.09    0.380   223.23
2016.09    0.380   225.84
2017.09    0.380   228.45
2018.09    0.380   231.06
2019.09    0.380   233.67
2020.09    0.380   236.29
2021.09    0.380   238.90
2022.09    0.380   241.51
2023.09    0.380   244.12
2024.09    0.380   246.73
2025.09    0.380   249.35
2026.09    0.380   251.96
2027.09    0.380   254.57
2028.09    0.380   257.18
2029.09    0.380   259.79
2030.09    0.380   262.41
2031.09    0.380   265.02
2032.09    0.380   267.63
2033.09    0.380   270.24
2034.09    0.380   272.85
2035.09    0.380   275.47
2036.09    0.380   278.08
2037.09    0.380   280.69
2038.09    0.380   283.30
2039.09    0.380   285.91
2040.09    0.380   288.52
2041.09    0.380   291.14
2042.09    0.380   293.75
2043.09    0.380   296.36
2044.09    0.380   298.97
2045.09    0.380   301.58
2046.09    0.380   304.20
2047.09    0.380   306.81
2048.09    0.380   309.42
2049.09    0.380   312.03
2050.09    0.380   314.64
2051.09    0.380   317.26
2052.09    0.380   319.87
2053.09    0.380   322.48
2054.09    0.380   325.09
2055.09    0.380   327.70
2056.09    0.380   330.32
2057.09    0.380   332.93
2058.09    0.380   335.54
2059.09    0.380   338.15
2060.09    0.380   340.76
2061.09    0.380   343.38
2062.09    0.380   345.99
2063.09    0.380   348.60
2064.09    0.380   351.21
2065.09    0.380   353.82
2066.09    0.380   356.43
2067.09    0.380   359.05
2068.09    0.380     1.66
2069.09    0.380     4.27
2070.09    0.380     6.88
2071.09    0.380     9.49
2072.09    0.380    12.11
2073.09    0.380    14.72
2074.09    0.380    17.33
2075.09    0.380    19.94
2076.09    0.380    22.55
2077.09    0.380    25.17
2078.09    0.380    27.78
2079.09    0.380    30.39
2080.09    0.380    33.00
2081.09    0.380    35.61
2082.09    0.380    38.23
2083.09    0.380    40.84
2084.09    0.380    43.45
2085.09    0.380    46.06
2086.09    0.380    48.67
2087.09    0.380    51.28
2088.09    0.380    53.90
2089.09    0.380    56.51
2090.09    0.380    59.12
2091.09    0.380    61.73
2092.09    0.380    64.34
2093.09    0.380    66.96

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 17:12:42