Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:28:31

Orbital Elements for CHR43

WDS:	CHR43	WDS ID/Discoverer
P:	170.880	Orbital period (years)
a:	0.626	Semi-major axis (arcseconds)
i:	73.9	Inclination (degrees)
Ω:	222.2	Longitude of ascending node (degrees)
T:	1999.390	Epoch of periastron passage (year)
e:	0.586	Eccentricity
ω:	347.1	Longitude of periastron (degrees)
Start-Year:	1940.0	Year
End-Year:	2110.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for CHR43

Position:	150306.63+443839.9	Epoch-2000 right ascension and declination
WDS-ID:	15031+4439	WDS designation
Discoverer Code:	CHR43	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	133484	HD catalog number
Hipparcos number:	73637	Hipparcos catalog number
V1:	6.65	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:		Equinox
Date:	2007	Date of last observation
Orbit grade:	5	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for CHR43

WDS 6th Orbit including measures of CHR43

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)

Ephemeris of CHR43

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.269      6.2
-------------------------
1940.0     0.921     43.8
1941.0     0.914     44.0
1942.0     0.907     44.2
1943.0     0.900     44.4
1944.0     0.892     44.7
1945.0     0.884     44.9
1946.0     0.876     45.1
1947.0     0.867     45.4
1948.0     0.857     45.6
1949.0     0.848     45.9
1950.0     0.837     46.2
1951.0     0.827     46.4
1952.0     0.816     46.7
1953.0     0.804     47.0
1954.0     0.793     47.3
1955.0     0.780     47.6
1956.0     0.768     47.9
1957.0     0.754     48.2
1958.0     0.741     48.5
1959.0     0.727     48.9
1960.0     0.712     49.2
1961.0     0.697     49.6
1962.0     0.681     50.0
1963.0     0.665     50.4
1964.0     0.649     50.8
1965.0     0.632     51.3
1966.0     0.614     51.8
1967.0     0.596     52.3
1968.0     0.577     52.8
1969.0     0.558     53.4
1970.0     0.539     54.0
1971.0     0.518     54.7
1972.0     0.497     55.4
1973.0     0.476     56.2
1974.0     0.454     57.0
1975.0     0.432     58.0
1976.0     0.408     59.0
1977.0     0.385     60.2
1978.0     0.361     61.5
1979.0     0.336     63.1
1980.0     0.311     64.9
1981.0     0.285     66.9
1982.0     0.260     69.4
1983.0     0.234     72.5
1984.0     0.208     76.3
1985.0     0.182     81.2
1986.0     0.158     87.7
1987.0     0.136     96.3
1988.0     0.117    108.1
1989.0     0.104    123.5
1990.0     0.100    141.6
1991.0     0.105    159.6
1992.0     0.118    174.7
1993.0     0.137    186.2
1994.0     0.158    194.9
1995.0     0.180    201.4
1996.0     0.201    206.5
1997.0     0.220    210.7
1998.0     0.236    214.3
1999.0     0.249    217.4
2000.0     0.258    220.3
2001.0     0.263    223.0
2002.0     0.263    225.7
2003.0     0.259    228.4
2004.0     0.252    231.3
2005.0     0.242    234.3
2006.0     0.230    237.6
2007.0     0.217    241.3
2008.0     0.202    245.5
2009.0     0.187    250.5
2010.0     0.172    256.3
2011.0     0.158    263.1
2012.0     0.146    271.2
2013.0     0.136    280.5
2014.0     0.131    291.0
2015.0     0.129    302.1
2016.0     0.132    313.1
2017.0     0.138    323.3
2018.0     0.149    332.4
2019.0     0.162    340.1
2020.0     0.177    346.6
2021.0     0.194    351.9
2022.0     0.212    356.5
2023.0     0.231      0.3
2024.0     0.250      3.5
2025.0     0.269      6.2
2026.0     0.289      8.6
2027.0     0.308     10.7
2028.0     0.328     12.6
2029.0     0.347     14.2
2030.0     0.366     15.6
2031.0     0.385     17.0
2032.0     0.404     18.1
2033.0     0.423     19.2
2034.0     0.441     20.2
2035.0     0.460     21.1
2036.0     0.477     22.0
2037.0     0.495     22.8
2038.0     0.512     23.5
2039.0     0.529     24.2
2040.0     0.546     24.8
2041.0     0.562     25.4
2042.0     0.578     26.0
2043.0     0.594     26.5
2044.0     0.610     27.1
2045.0     0.625     27.5
2046.0     0.639     28.0
2047.0     0.654     28.4
2048.0     0.668     28.9
2049.0     0.682     29.3
2050.0     0.695     29.7
2051.0     0.709     30.0
2052.0     0.722     30.4
2053.0     0.734     30.8
2054.0     0.746     31.1
2055.0     0.758     31.4
2056.0     0.770     31.7
2057.0     0.781     32.1
2058.0     0.792     32.4
2059.0     0.803     32.6
2060.0     0.813     32.9
2061.0     0.823     33.2
2062.0     0.833     33.5
2063.0     0.842     33.7
2064.0     0.851     34.0
2065.0     0.860     34.3
2066.0     0.869     34.5
2067.0     0.877     34.7
2068.0     0.885     35.0
2069.0     0.892     35.2
2070.0     0.899     35.4
2071.0     0.906     35.7
2072.0     0.913     35.9
2073.0     0.919     36.1
2074.0     0.925     36.3
2075.0     0.931     36.6
2076.0     0.936     36.8
2077.0     0.941     37.0
2078.0     0.946     37.2
2079.0     0.950     37.4
2080.0     0.954     37.6
2081.0     0.958     37.8
2082.0     0.962     38.0
2083.0     0.965     38.2
2084.0     0.968     38.4
2085.0     0.970     38.6
2086.0     0.972     38.8
2087.0     0.974     39.0
2088.0     0.976     39.2
2089.0     0.977     39.4
2090.0     0.978     39.6
2091.0     0.979     39.8
2092.0     0.979     40.0
2093.0     0.979     40.2
2094.0     0.978     40.4
2095.0     0.978     40.5
2096.0     0.977     40.7
2097.0     0.975     40.9
2098.0     0.974     41.1
2099.0     0.972     41.3
2100.0     0.969     41.5
2101.0     0.967     41.7
2102.0     0.963     41.9
2103.0     0.960     42.1
2104.0     0.956     42.3
2105.0     0.952     42.5
2106.0     0.948     42.7
2107.0     0.943     42.9
2108.0     0.938     43.1
2109.0     0.932     43.4

Disclaimer

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.