Double Star Calculator - Orbit

Orbital Elements for KOI3158A,BC
WDS: KOI3158A,BC WDS ID/Discoverer
P: 198.000 Orbital period (years)
a: 1.028 Semi-major axis (arcseconds)
i: 90.4 Inclination (degrees)
Ω: 73.1 Longitude of ascending node (degrees)
T: 2101.181 Epoch of periastron passage (year)
e: 0.864 Eccentricity
ω: 342.8 Longitude of periastron (degrees)
Start-Year: 1926.0 Year
End-Year: 2124.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for KOI3158A,BC
Position: 191900.54+413804.5 Epoch-2000 right ascension and declination
WDS-ID: 19190+4138 WDS designation
Discoverer Code: KOI3158A,BC Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 94931 Hipparcos catalog number
V1: 14.03r Magnitude of the primary
V2: 16.90r Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2015 Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Dup2016b Reference

Double Star Orbit for KOI3158A,BC



WDS 6th Orbit including measures of KOI3158A,BC

-- 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 KOI3158A,BC
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    1.808   253.17
--------------------------
1926.00    0.712   253.53
1927.00    0.743   253.52
1928.00    0.773   253.50
1929.00    0.802   253.49
1930.00    0.830   253.48
1931.00    0.858   253.47
1932.00    0.886   253.46
1933.00    0.912   253.46
1934.00    0.939   253.45
1935.00    0.964   253.44
1936.00    0.989   253.43
1937.00    1.014   253.43
1938.00    1.038   253.42
1939.00    1.062   253.41
1940.00    1.085   253.41
1941.00    1.108   253.40
1942.00    1.130   253.40
1943.00    1.152   253.39
1944.00    1.174   253.39
1945.00    1.195   253.38
1946.00    1.215   253.38
1947.00    1.235   253.37
1948.00    1.255   253.37
1949.00    1.274   253.36
1950.00    1.293   253.36
1951.00    1.312   253.36
1952.00    1.330   253.35
1953.00    1.348   253.35
1954.00    1.366   253.35
1955.00    1.383   253.34
1956.00    1.399   253.34
1957.00    1.416   253.33
1958.00    1.432   253.33
1959.00    1.448   253.33
1960.00    1.463   253.32
1961.00    1.478   253.32
1962.00    1.493   253.32
1963.00    1.507   253.32
1964.00    1.521   253.31
1965.00    1.535   253.31
1966.00    1.548   253.31
1967.00    1.561   253.30
1968.00    1.574   253.30
1969.00    1.586   253.30
1970.00    1.598   253.30
1971.00    1.610   253.29
1972.00    1.622   253.29
1973.00    1.633   253.29
1974.00    1.644   253.29
1975.00    1.654   253.28
1976.00    1.665   253.28
1977.00    1.675   253.28
1978.00    1.684   253.28
1979.00    1.694   253.27
1980.00    1.703   253.27
1981.00    1.712   253.27
1982.00    1.720   253.27
1983.00    1.728   253.26
1984.00    1.736   253.26
1985.00    1.744   253.26
1986.00    1.751   253.26
1987.00    1.758   253.26
1988.00    1.765   253.25
1989.00    1.772   253.25
1990.00    1.778   253.25
1991.00    1.784   253.25
1992.00    1.789   253.24
1993.00    1.795   253.24
1994.00    1.800   253.24
1995.00    1.804   253.24
1996.00    1.809   253.24
1997.00    1.813   253.23
1998.00    1.817   253.23
1999.00    1.821   253.23
2000.00    1.824   253.23
2001.00    1.827   253.23
2002.00    1.830   253.22
2003.00    1.833   253.22
2004.00    1.835   253.22
2005.00    1.837   253.22
2006.00    1.838   253.22
2007.00    1.840   253.21
2008.00    1.841   253.21
2009.00    1.842   253.21
2010.00    1.842   253.21
2011.00    1.842   253.21
2012.00    1.842   253.20
2013.00    1.842   253.20
2014.00    1.841   253.20
2015.00    1.840   253.20
2016.00    1.839   253.20
2017.00    1.837   253.19
2018.00    1.836   253.19
2019.00    1.834   253.19
2020.00    1.831   253.19
2021.00    1.828   253.19
2022.00    1.825   253.18
2023.00    1.822   253.18
2024.00    1.818   253.18
2025.00    1.814   253.18
2026.00    1.810   253.18
2027.00    1.805   253.17
2028.00    1.800   253.17
2029.00    1.795   253.17
2030.00    1.790   253.17
2031.00    1.784   253.17
2032.00    1.777   253.16
2033.00    1.771   253.16
2034.00    1.764   253.16
2035.00    1.757   253.16
2036.00    1.749   253.15
2037.00    1.741   253.15
2038.00    1.733   253.15
2039.00    1.724   253.15
2040.00    1.715   253.15
2041.00    1.706   253.14
2042.00    1.696   253.14
2043.00    1.686   253.14
2044.00    1.675   253.14
2045.00    1.664   253.13
2046.00    1.653   253.13
2047.00    1.642   253.13
2048.00    1.629   253.13
2049.00    1.617   253.12
2050.00    1.604   253.12
2051.00    1.591   253.12
2052.00    1.577   253.12
2053.00    1.563   253.11
2054.00    1.548   253.11
2055.00    1.533   253.11
2056.00    1.517   253.10
2057.00    1.501   253.10
2058.00    1.485   253.10
2059.00    1.468   253.10
2060.00    1.450   253.09
2061.00    1.432   253.09
2062.00    1.414   253.09
2063.00    1.395   253.08
2064.00    1.375   253.08
2065.00    1.355   253.08
2066.00    1.334   253.07
2067.00    1.312   253.07
2068.00    1.290   253.06
2069.00    1.268   253.06
2070.00    1.244   253.06
2071.00    1.220   253.05
2072.00    1.195   253.05
2073.00    1.170   253.04
2074.00    1.143   253.04
2075.00    1.116   253.03
2076.00    1.088   253.03
2077.00    1.059   253.02
2078.00    1.029   253.01
2079.00    0.999   253.01
2080.00    0.967   253.00
2081.00    0.934   252.99
2082.00    0.900   252.98
2083.00    0.865   252.98
2084.00    0.828   252.97
2085.00    0.791   252.96
2086.00    0.751   252.94
2087.00    0.711   252.93
2088.00    0.668   252.92
2089.00    0.624   252.90
2090.00    0.577   252.88
2091.00    0.529   252.86
2092.00    0.478   252.83
2093.00    0.424   252.80
2094.00    0.367   252.76
2095.00    0.306   252.70
2096.00    0.241   252.61
2097.00    0.172   252.44
2098.00    0.097   252.04
2099.00    0.018   248.26
2100.00    0.062    74.11
2101.00    0.126    73.30
2102.00    0.145    72.95
2103.00    0.122    72.58
2104.00    0.082    71.91
2105.00    0.035    69.56
2106.00    0.014   263.96
2107.00    0.061   255.79
2108.00    0.108   254.77
2109.00    0.154   254.37
2110.00    0.199   254.15
2111.00    0.242   254.01
2112.00    0.284   253.91
2113.00    0.325   253.84
2114.00    0.365   253.78
2115.00    0.404   253.74
2116.00    0.442   253.70
2117.00    0.478   253.67
2118.00    0.514   253.64
2119.00    0.549   253.61
2120.00    0.583   253.59
2121.00    0.617   253.57
2122.00    0.649   253.56
2123.00    0.681   253.54






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 18:02:54



www.stella-vega.de