Double Star Calculator - Orbit

Orbital Elements for CHR180

WDS:	CHR180	WDS ID/Discoverer
P:	219.200	Orbital period (years)
a:	0.745	Semi-major axis (arcseconds)
i:	44.5	Inclination (degrees)
Ω:	22.2	Longitude of ascending node (degrees)
T:	2201.700	Epoch of periastron passage (year)
e:	0.686	Eccentricity
ω:	273.3	Longitude of periastron (degrees)
Start-Year:	1915.4	Year
End-Year:	2134.6	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for CHR180
Position:	131532.05+405118.6	Epoch-2000 right ascension and declination
WDS-ID:	13155+4051	WDS designation
Discoverer Code:	CHR180	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	115271	HD catalog number
Hipparcos number:	64692	Hipparcos catalog number
V1:	5.87	Magnitude of the primary
V2:	9.48	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2010	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:	Cve2015b	Reference

Double Star Orbit for CHR180

WDS 6th Orbit including measures of CHR180

-- 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 CHR180

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.730    72.41
--------------------------
1915.40    0.853   142.46
1916.40    0.850   143.11
1917.40    0.847   143.77
1918.40    0.844   144.43
1919.40    0.841   145.10
1920.40    0.838   145.77
1921.40    0.835   146.44
1922.40    0.832   147.12
1923.40    0.828   147.81
1924.40    0.824   148.50
1925.40    0.821   149.20
1926.40    0.817   149.91
1927.40    0.813   150.62
1928.40    0.809   151.34
1929.40    0.804   152.07
1930.40    0.800   152.80
1931.40    0.796   153.55
1932.40    0.791   154.30
1933.40    0.786   155.06
1934.40    0.781   155.83
1935.40    0.776   156.61
1936.40    0.771   157.40
1937.40    0.765   158.20
1938.40    0.760   159.02
1939.40    0.754   159.84
1940.40    0.748   160.68
1941.40    0.742   161.53
1942.40    0.735   162.40
1943.40    0.729   163.28
1944.40    0.722   164.18
1945.40    0.715   165.10
1946.40    0.707   166.04
1947.40    0.700   166.99
1948.40    0.692   167.97
1949.40    0.684   168.97
1950.40    0.676   169.99
1951.40    0.667   171.04
1952.40    0.658   172.12
1953.40    0.649   173.22
1954.40    0.639   174.36
1955.40    0.629   175.54
1956.40    0.619   176.76
1957.40    0.608   178.01
1958.40    0.597   179.32
1959.40    0.585   180.67
1960.40    0.573   182.08
1961.40    0.560   183.55
1962.40    0.547   185.09
1963.40    0.533   186.71
1964.40    0.519   188.42
1965.40    0.504   190.23
1966.40    0.488   192.16
1967.40    0.471   194.21
1968.40    0.454   196.42
1969.40    0.436   198.81
1970.40    0.416   201.42
1971.40    0.396   204.29
1972.40    0.375   207.48
1973.40    0.352   211.07
1974.40    0.328   215.16
1975.40    0.304   219.89
1976.40    0.279   225.48
1977.40    0.253   232.20
1978.40    0.228   240.43
1979.40    0.204   250.64
1980.40    0.184   263.28
1981.40    0.171   278.40
1982.40    0.167   295.13
1983.40    0.173   311.67
1984.40    0.187   326.38
1985.40    0.208   338.58
1986.40    0.231   348.45
1987.40    0.256   356.44
1988.40    0.281     3.02
1989.40    0.305     8.53
1990.40    0.329    13.24
1991.40    0.351    17.34
1992.40    0.372    20.96
1993.40    0.392    24.21
1994.40    0.411    27.15
1995.40    0.429    29.83
1996.40    0.446    32.31
1997.40    0.462    34.61
1998.40    0.477    36.75
1999.40    0.491    38.77
2000.40    0.505    40.68
2001.40    0.519    42.48
2002.40    0.531    44.20
2003.40    0.543    45.84
2004.40    0.555    47.41
2005.40    0.566    48.91
2006.40    0.577    50.36
2007.40    0.587    51.76
2008.40    0.597    53.11
2009.40    0.606    54.42
2010.40    0.616    55.68
2011.40    0.624    56.91
2012.40    0.633    58.11
2013.40    0.641    59.28
2014.40    0.649    60.41
2015.40    0.657    61.52
2016.40    0.665    62.60
2017.40    0.672    63.66
2018.40    0.679    64.70
2019.40    0.686    65.71
2020.40    0.693    66.71
2021.40    0.699    67.69
2022.40    0.706    68.64
2023.40    0.712    69.59
2024.40    0.718    70.51
2025.40    0.723    71.42
2026.40    0.729    72.32
2027.40    0.735    73.20
2028.40    0.740    74.07
2029.40    0.745    74.93
2030.40    0.750    75.78
2031.40    0.755    76.61
2032.40    0.760    77.44
2033.40    0.765    78.25
2034.40    0.769    79.05
2035.40    0.774    79.85
2036.40    0.778    80.63
2037.40    0.782    81.41
2038.40    0.787    82.18
2039.40    0.791    82.94
2040.40    0.795    83.69
2041.40    0.799    84.44
2042.40    0.802    85.18
2043.40    0.806    85.91
2044.40    0.810    86.63
2045.40    0.813    87.35
2046.40    0.816    88.06
2047.40    0.820    88.77
2048.40    0.823    89.47
2049.40    0.826    90.17
2050.40    0.829    90.86
2051.40    0.832    91.54
2052.40    0.835    92.23
2053.40    0.838    92.90
2054.40    0.841    93.57
2055.40    0.843    94.24
2056.40    0.846    94.90
2057.40    0.849    95.56
2058.40    0.851    96.22
2059.40    0.853    96.87
2060.40    0.856    97.52
2061.40    0.858    98.16
2062.40    0.860    98.80
2063.40    0.862    99.44
2064.40    0.864   100.07
2065.40    0.866   100.71
2066.40    0.868   101.33
2067.40    0.870   101.96
2068.40    0.872   102.58
2069.40    0.874   103.20
2070.40    0.875   103.82
2071.40    0.877   104.44
2072.40    0.879   105.05
2073.40    0.880   105.66
2074.40    0.882   106.27
2075.40    0.883   106.88
2076.40    0.884   107.49
2077.40    0.886   108.09
2078.40    0.887   108.69
2079.40    0.888   109.29
2080.40    0.889   109.89
2081.40    0.890   110.49
2082.40    0.891   111.09
2083.40    0.892   111.68
2084.40    0.893   112.28
2085.40    0.894   112.87
2086.40    0.894   113.46
2087.40    0.895   114.05
2088.40    0.896   114.64
2089.40    0.896   115.23
2090.40    0.897   115.82
2091.40    0.897   116.41
2092.40    0.897   117.00
2093.40    0.898   117.59
2094.40    0.898   118.17
2095.40    0.898   118.76
2096.40    0.898   119.34
2097.40    0.898   119.93
2098.40    0.898   120.52
2099.40    0.898   121.10
2100.40    0.898   121.69
2101.40    0.898   122.28
2102.40    0.898   122.86
2103.40    0.898   123.45
2104.40    0.897   124.04
2105.40    0.897   124.62
2106.40    0.896   125.21
2107.40    0.896   125.80
2108.40    0.895   126.39
2109.40    0.894   126.98
2110.40    0.894   127.57
2111.40    0.893   128.17
2112.40    0.892   128.76
2113.40    0.891   129.36
2114.40    0.890   129.95
2115.40    0.889   130.55
2116.40    0.888   131.15
2117.40    0.887   131.75
2118.40    0.885   132.35
2119.40    0.884   132.96
2120.40    0.882   133.56
2121.40    0.881   134.17
2122.40    0.879   134.78
2123.40    0.878   135.40
2124.40    0.876   136.01
2125.40    0.874   136.63
2126.40    0.872   137.25
2127.40    0.870   137.87
2128.40    0.868   138.50
2129.40    0.866   139.13
2130.40    0.863   139.76
2131.40    0.861   140.40
2132.40    0.859   141.04
2133.40    0.856   141.68
2134.40    0.854   142.33

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 16:54:08