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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:48:47
WDS:
BU631
WDS ID/Discoverer
P:
147.500
Orbital period (years)
a:
0.217
Semi-major axis (arcseconds)
i:
162.5
Inclination (degrees)
Ω:
26.8
Longitude of ascending node (degrees)
T:
1978.300
Epoch of periastron passage (year)
e:
0.78
Eccentricity
ω:
146.0
Longitude of periastron (degrees)
Start-Year:
1952.0
Year
End-Year:
2098.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
173957.70-003821.2
Epoch-2000 right ascension and declination
WDS-ID:
17400-0038
WDS designation
Discoverer Code:
BU631
Discover designation and components
ADS number:
10696
Aitken Double Star catalog
HD number:
160438
HD catalog number
Hipparcos number:
86463
Hipparcos catalog number
V1:
7.23
Magnitude of the primary
V2:
7.40
Magnitude of the secondary
Equinox:
Equinox
Date:
Date of last observation
Orbit grade:
2
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 0.341 73.4
-------------------------
1952.0 0.266 31.4
1953.0 0.261 30.4
1954.0 0.255 29.4
1955.0 0.249 28.3
1956.0 0.242 27.1
1957.0 0.236 25.9
1958.0 0.229 24.7
1959.0 0.222 23.3
1960.0 0.215 21.9
1961.0 0.208 20.4
1962.0 0.200 18.7
1963.0 0.192 16.9
1964.0 0.184 15.0
1965.0 0.175 12.8
1966.0 0.166 10.5
1967.0 0.157 7.8
1968.0 0.147 4.9
1969.0 0.137 1.4
1970.0 0.126 357.5
1971.0 0.116 352.8
1972.0 0.104 347.1
1973.0 0.093 340.0
1974.0 0.081 330.9
1975.0 0.069 318.7
1976.0 0.059 301.7
1977.0 0.051 278.3
1978.0 0.047 248.9
1979.0 0.049 218.6
1980.0 0.056 193.3
1981.0 0.065 174.2
1982.0 0.075 160.0
1983.0 0.085 149.3
1984.0 0.096 140.9
1985.0 0.106 134.1
1986.0 0.116 128.6
1987.0 0.126 123.9
1988.0 0.136 119.9
1989.0 0.145 116.4
1990.0 0.154 113.3
1991.0 0.162 110.6
1992.0 0.171 108.1
1993.0 0.179 105.9
1994.0 0.187 103.8
1995.0 0.194 101.9
1996.0 0.202 100.2
1997.0 0.209 98.5
1998.0 0.216 97.0
1999.0 0.222 95.6
2000.0 0.229 94.2
2001.0 0.235 93.0
2002.0 0.241 91.8
2003.0 0.247 90.6
2004.0 0.253 89.5
2005.0 0.259 88.5
2006.0 0.264 87.5
2007.0 0.269 86.5
2008.0 0.275 85.6
2009.0 0.280 84.7
2010.0 0.284 83.8
2011.0 0.289 83.0
2012.0 0.294 82.2
2013.0 0.298 81.4
2014.0 0.302 80.6
2015.0 0.306 79.9
2016.0 0.310 79.2
2017.0 0.314 78.5
2018.0 0.318 77.8
2019.0 0.322 77.1
2020.0 0.325 76.5
2021.0 0.329 75.8
2022.0 0.332 75.2
2023.0 0.335 74.6
2024.0 0.338 74.0
2025.0 0.341 73.4
2026.0 0.344 72.8
2027.0 0.346 72.2
2028.0 0.349 71.6
2029.0 0.352 71.1
2030.0 0.354 70.5
2031.0 0.356 70.0
2032.0 0.358 69.5
2033.0 0.360 68.9
2034.0 0.362 68.4
2035.0 0.364 67.9
2036.0 0.366 67.4
2037.0 0.368 66.9
2038.0 0.369 66.3
2039.0 0.371 65.8
2040.0 0.372 65.4
2041.0 0.373 64.9
2042.0 0.374 64.4
2043.0 0.376 63.9
2044.0 0.377 63.4
2045.0 0.377 62.9
2046.0 0.378 62.4
2047.0 0.379 62.0
2048.0 0.379 61.5
2049.0 0.380 61.0
2050.0 0.380 60.5
2051.0 0.381 60.0
2052.0 0.381 59.6
2053.0 0.381 59.1
2054.0 0.381 58.6
2055.0 0.381 58.2
2056.0 0.381 57.7
2057.0 0.380 57.2
2058.0 0.380 56.7
2059.0 0.379 56.3
2060.0 0.379 55.8
2061.0 0.378 55.3
2062.0 0.377 54.8
2063.0 0.376 54.3
2064.0 0.375 53.9
2065.0 0.374 53.4
2066.0 0.373 52.9
2067.0 0.372 52.4
2068.0 0.371 51.9
2069.0 0.369 51.4
2070.0 0.367 50.9
2071.0 0.366 50.4
2072.0 0.364 49.9
2073.0 0.362 49.3
2074.0 0.360 48.8
2075.0 0.358 48.3
2076.0 0.356 47.7
2077.0 0.353 47.2
2078.0 0.351 46.6
2079.0 0.348 46.1
2080.0 0.346 45.5
2081.0 0.343 44.9
2082.0 0.340 44.3
2083.0 0.337 43.7
2084.0 0.334 43.1
2085.0 0.330 42.5
2086.0 0.327 41.9
2087.0 0.323 41.2
2088.0 0.319 40.5
2089.0 0.316 39.9
2090.0 0.312 39.2
2091.0 0.308 38.5
2092.0 0.303 37.7
2093.0 0.299 37.0
2094.0 0.294 36.2
2095.0 0.290 35.4
2096.0 0.285 34.5
2097.0 0.280 33.7
This result is provided without warranty. For all terms, see the Full Disclaimer .
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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