Double Star Calculator - Orbit

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: 1939.56 Year
End-Year: 2110.44 Year
Epoch: 2026.5 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
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Hrt2009 Reference

Double Star Orbit for CHR43



WDS 6th Orbit including measures of CHR43

-- 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 CHR43
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.298     9.71
--------------------------
1939.56    0.924    43.67
1940.56    0.917    43.89
1941.56    0.910    44.11
1942.56    0.903    44.34
1943.56    0.896    44.57
1944.56    0.888    44.80
1945.56    0.879    45.04
1946.56    0.871    45.28
1947.56    0.861    45.53
1948.56    0.852    45.78
1949.56    0.842    46.04
1950.56    0.832    46.30
1951.56    0.821    46.58
1952.56    0.810    46.86
1953.56    0.798    47.14
1954.56    0.786    47.44
1955.56    0.773    47.74
1956.56    0.760    48.06
1957.56    0.747    48.39
1958.56    0.733    48.72
1959.56    0.719    49.08
1960.56    0.704    49.44
1961.56    0.688    49.83
1962.56    0.673    50.23
1963.56    0.656    50.65
1964.56    0.639    51.09
1965.56    0.622    51.56
1966.56    0.604    52.05
1967.56    0.586    52.57
1968.56    0.567    53.13
1969.56    0.547    53.73
1970.56    0.527    54.37
1971.56    0.507    55.07
1972.56    0.486    55.82
1973.56    0.464    56.64
1974.56    0.442    57.55
1975.56    0.419    58.55
1976.56    0.395    59.67
1977.56    0.371    60.94
1978.56    0.347    62.38
1979.56    0.322    64.04
1980.56    0.297    65.98
1981.56    0.271    68.29
1982.56    0.245    71.08
1983.56    0.219    74.53
1984.56    0.194    78.91
1985.56    0.169    84.60
1986.56    0.145    92.19
1987.56    0.125   102.48
1988.56    0.109   116.26
1989.56    0.101   133.45
1990.56    0.102   151.93
1991.56    0.112   168.51
1992.56    0.128   181.58
1993.56    0.148   191.37
1994.56    0.170   198.72
1995.56    0.192   204.41
1996.56    0.212   208.97
1997.56    0.230   212.77
1998.56    0.244   216.08
1999.56    0.255   219.06
2000.56    0.261   221.84
2001.56    0.263   224.53
2002.56    0.261   227.22
2003.56    0.256   229.99
2004.56    0.247   232.92
2005.56    0.236   236.09
2006.56    0.223   239.62
2007.56    0.208   243.61
2008.56    0.193   248.21
2009.56    0.178   253.59
2010.56    0.164   259.94
2011.56    0.151   267.46
2012.56    0.140   276.25
2013.56    0.133   286.26
2014.56    0.129   297.15
2015.56    0.130   308.29
2016.56    0.135   318.94
2017.56    0.144   328.55
2018.56    0.156   336.85
2019.56    0.170   343.85
2020.56    0.187   349.70
2021.56    0.204   354.57
2022.56    0.222   358.66
2023.56    0.241     2.12
2024.56    0.261     5.07
2025.56    0.280     7.62
2026.56    0.300     9.83
2027.56    0.319    11.77
2028.56    0.339    13.49
2029.56    0.358    15.02
2030.56    0.377    16.39
2031.56    0.396    17.64
2032.56    0.415    18.76
2033.56    0.433    19.80
2034.56    0.452    20.74
2035.56    0.470    21.62
2036.56    0.487    22.43
2037.56    0.505    23.18
2038.56    0.522    23.89
2039.56    0.539    24.55
2040.56    0.555    25.17
2041.56    0.571    25.75
2042.56    0.587    26.31
2043.56    0.603    26.83
2044.56    0.618    27.33
2045.56    0.633    27.80
2046.56    0.648    28.25
2047.56    0.662    28.69
2048.56    0.676    29.10
2049.56    0.690    29.50
2050.56    0.703    29.88
2051.56    0.716    30.25
2052.56    0.729    30.61
2053.56    0.741    30.95
2054.56    0.753    31.28
2055.56    0.765    31.61
2056.56    0.776    31.92
2057.56    0.787    32.22
2058.56    0.798    32.52
2059.56    0.809    32.80
2060.56    0.819    33.08
2061.56    0.829    33.36
2062.56    0.838    33.62
2063.56    0.847    33.89
2064.56    0.856    34.14
2065.56    0.865    34.39
2066.56    0.873    34.64
2067.56    0.881    34.88
2068.56    0.889    35.12
2069.56    0.896    35.35
2070.56    0.903    35.58
2071.56    0.910    35.80
2072.56    0.916    36.03
2073.56    0.922    36.24
2074.56    0.928    36.46
2075.56    0.934    36.68
2076.56    0.939    36.89
2077.56    0.944    37.10
2078.56    0.948    37.30
2079.56    0.953    37.51
2080.56    0.957    37.71
2081.56    0.960    37.91
2082.56    0.963    38.12
2083.56    0.966    38.31
2084.56    0.969    38.51
2085.56    0.971    38.71
2086.56    0.973    38.91
2087.56    0.975    39.10
2088.56    0.977    39.30
2089.56    0.978    39.49
2090.56    0.978    39.68
2091.56    0.979    39.88
2092.56    0.979    40.07
2093.56    0.979    40.27
2094.56    0.978    40.46
2095.56    0.977    40.65
2096.56    0.976    40.85
2097.56    0.974    41.04
2098.56    0.973    41.24
2099.56    0.970    41.44
2100.56    0.968    41.63
2101.56    0.965    41.83
2102.56    0.962    42.03
2103.56    0.958    42.23
2104.56    0.954    42.44
2105.56    0.950    42.64
2106.56    0.945    42.85
2107.56    0.940    43.06
2108.56    0.935    43.27
2109.56    0.929    43.48






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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 17:11:58



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