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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:03:43
WDS:
A1391
WDS ID/Discoverer
P:
138.120
Orbital period (years)
a:
0.238
Semi-major axis (arcseconds)
i:
44.9
Inclination (degrees)
Ω:
64.4
Longitude of ascending node (degrees)
T:
1981.135
Epoch of periastron passage (year)
e:
0.401
Eccentricity
ω:
177.4
Longitude of periastron (degrees)
Start-Year:
1956.0
Year
End-Year:
2094.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
191036.61+542835.1
Epoch-2000 right ascension and declination
WDS-ID:
19106+5429
WDS designation
Discoverer Code:
A1391
Discover designation and components
ADS number:
12144
Aitken Double Star catalog
HD number:
234826
HD catalog number
Hipparcos number:
94194
Hipparcos catalog number
V1:
9.17
Magnitude of the primary
V2:
10.05
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2007
Date of last observation
Orbit grade:
3
Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:
n
Flags
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Click to expand/collapse ephemeris:
Year Sep[“] PA[°]
---------------------------------------------
2025.0 0.275 37.7
-------------------------
1956.0 0.181 121.2
1957.0 0.175 124.3
1958.0 0.169 127.5
1959.0 0.164 130.9
1960.0 0.159 134.6
1961.0 0.154 138.6
1962.0 0.149 142.8
1963.0 0.145 147.2
1964.0 0.141 151.9
1965.0 0.137 156.9
1966.0 0.135 162.1
1967.0 0.132 167.5
1968.0 0.131 173.0
1969.0 0.130 178.7
1970.0 0.129 184.4
1971.0 0.130 190.1
1972.0 0.130 195.8
1973.0 0.131 201.4
1974.0 0.133 206.8
1975.0 0.135 212.2
1976.0 0.136 217.4
1977.0 0.138 222.5
1978.0 0.139 227.5
1979.0 0.141 232.4
1980.0 0.142 237.2
1981.0 0.142 241.9
1982.0 0.143 246.6
1983.0 0.142 251.3
1984.0 0.142 256.1
1985.0 0.141 260.9
1986.0 0.140 265.7
1987.0 0.139 270.7
1988.0 0.137 275.7
1989.0 0.136 280.8
1990.0 0.135 286.1
1991.0 0.134 291.4
1992.0 0.133 296.7
1993.0 0.133 302.1
1994.0 0.133 307.5
1995.0 0.134 312.9
1996.0 0.136 318.1
1997.0 0.138 323.3
1998.0 0.140 328.2
1999.0 0.143 333.0
2000.0 0.147 337.6
2001.0 0.150 341.9
2002.0 0.155 346.0
2003.0 0.159 349.9
2004.0 0.164 353.6
2005.0 0.169 357.1
2006.0 0.174 0.3
2007.0 0.180 3.4
2008.0 0.185 6.2
2009.0 0.191 8.9
2010.0 0.197 11.5
2011.0 0.202 13.9
2012.0 0.208 16.2
2013.0 0.214 18.3
2014.0 0.219 20.4
2015.0 0.225 22.3
2016.0 0.230 24.2
2017.0 0.236 25.9
2018.0 0.241 27.6
2019.0 0.246 29.2
2020.0 0.251 30.8
2021.0 0.256 32.2
2022.0 0.261 33.7
2023.0 0.266 35.1
2024.0 0.271 36.4
2025.0 0.275 37.7
2026.0 0.279 38.9
2027.0 0.283 40.1
2028.0 0.287 41.3
2029.0 0.291 42.5
2030.0 0.295 43.6
2031.0 0.298 44.7
2032.0 0.302 45.7
2033.0 0.305 46.8
2034.0 0.308 47.8
2035.0 0.311 48.8
2036.0 0.313 49.8
2037.0 0.316 50.7
2038.0 0.318 51.7
2039.0 0.321 52.6
2040.0 0.323 53.6
2041.0 0.324 54.5
2042.0 0.326 55.4
2043.0 0.328 56.3
2044.0 0.329 57.2
2045.0 0.330 58.0
2046.0 0.331 58.9
2047.0 0.332 59.8
2048.0 0.332 60.7
2049.0 0.333 61.5
2050.0 0.333 62.4
2051.0 0.333 63.3
2052.0 0.333 64.1
2053.0 0.333 65.0
2054.0 0.333 65.8
2055.0 0.332 66.7
2056.0 0.331 67.6
2057.0 0.330 68.5
2058.0 0.329 69.3
2059.0 0.328 70.2
2060.0 0.326 71.1
2061.0 0.325 72.0
2062.0 0.323 72.9
2063.0 0.321 73.9
2064.0 0.319 74.8
2065.0 0.316 75.7
2066.0 0.314 76.7
2067.0 0.311 77.7
2068.0 0.308 78.7
2069.0 0.305 79.7
2070.0 0.302 80.8
2071.0 0.299 81.8
2072.0 0.295 82.9
2073.0 0.291 84.0
2074.0 0.287 85.2
2075.0 0.283 86.3
2076.0 0.279 87.6
2077.0 0.275 88.8
2078.0 0.270 90.1
2079.0 0.265 91.4
2080.0 0.261 92.8
2081.0 0.256 94.3
2082.0 0.250 95.7
2083.0 0.245 97.3
2084.0 0.240 98.9
2085.0 0.234 100.6
2086.0 0.229 102.4
2087.0 0.223 104.3
2088.0 0.217 106.3
2089.0 0.211 108.4
2090.0 0.205 110.6
2091.0 0.199 112.9
2092.0 0.193 115.4
2093.0 0.187 118.1
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Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 4.0 .
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 .
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