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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:38:43
WDS:
B872
WDS ID/Discoverer
P:
179.400
Orbital period (years)
a:
0.398
Semi-major axis (arcseconds)
i:
108.6
Inclination (degrees)
Ω:
132.9
Longitude of ascending node (degrees)
T:
1977.700
Epoch of periastron passage (year)
e:
0.508
Eccentricity
ω:
146.3
Longitude of periastron (degrees)
Start-Year:
1936.0
Year
End-Year:
2114.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
162726.22-372837.0
Epoch-2000 right ascension and declination
WDS-ID:
16274-3729
WDS designation
Discoverer Code:
B872
Discover designation and components
ADS number:
.
Aitken Double Star catalog
HD number:
148121
HD catalog number
Hipparcos number:
80603
Hipparcos catalog number
V1:
9.33
Magnitude of the primary
V2:
9.68
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2018
Date of last observation
Orbit grade:
4
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 0.226 174.3
-------------------------
1936.0 0.465 129.9
1937.0 0.457 129.5
1938.0 0.450 129.1
1939.0 0.442 128.6
1940.0 0.434 128.2
1941.0 0.425 127.7
1942.0 0.416 127.2
1943.0 0.407 126.7
1944.0 0.398 126.2
1945.0 0.388 125.6
1946.0 0.377 125.0
1947.0 0.367 124.4
1948.0 0.355 123.7
1949.0 0.344 123.0
1950.0 0.332 122.2
1951.0 0.320 121.4
1952.0 0.307 120.5
1953.0 0.294 119.5
1954.0 0.280 118.5
1955.0 0.266 117.3
1956.0 0.252 116.0
1957.0 0.237 114.5
1958.0 0.222 112.9
1959.0 0.206 111.0
1960.0 0.190 108.7
1961.0 0.175 106.1
1962.0 0.158 103.0
1963.0 0.142 99.1
1964.0 0.127 94.3
1965.0 0.112 88.1
1966.0 0.098 80.1
1967.0 0.086 69.6
1968.0 0.077 56.4
1969.0 0.073 40.8
1970.0 0.074 24.6
1971.0 0.081 9.9
1972.0 0.091 357.9
1973.0 0.103 348.6
1974.0 0.117 341.4
1975.0 0.131 335.6
1976.0 0.145 331.0
1977.0 0.158 327.2
1978.0 0.170 324.0
1979.0 0.181 321.1
1980.0 0.190 318.6
1981.0 0.198 316.3
1982.0 0.204 314.2
1983.0 0.209 312.1
1984.0 0.212 310.2
1985.0 0.214 308.2
1986.0 0.215 306.3
1987.0 0.214 304.4
1988.0 0.212 302.5
1989.0 0.210 300.6
1990.0 0.206 298.5
1991.0 0.202 296.4
1992.0 0.197 294.3
1993.0 0.192 291.9
1994.0 0.186 289.5
1995.0 0.181 286.9
1996.0 0.175 284.2
1997.0 0.169 281.2
1998.0 0.163 278.0
1999.0 0.157 274.6
2000.0 0.152 270.9
2001.0 0.146 267.0
2002.0 0.142 262.8
2003.0 0.138 258.3
2004.0 0.134 253.6
2005.0 0.132 248.6
2006.0 0.130 243.5
2007.0 0.129 238.3
2008.0 0.129 233.0
2009.0 0.129 227.7
2010.0 0.131 222.6
2011.0 0.134 217.6
2012.0 0.137 212.9
2013.0 0.142 208.4
2014.0 0.147 204.2
2015.0 0.152 200.3
2016.0 0.158 196.6
2017.0 0.165 193.3
2018.0 0.172 190.2
2019.0 0.179 187.3
2020.0 0.186 184.7
2021.0 0.194 182.3
2022.0 0.202 180.1
2023.0 0.210 178.0
2024.0 0.218 176.1
2025.0 0.226 174.3
2026.0 0.235 172.7
2027.0 0.243 171.2
2028.0 0.251 169.7
2029.0 0.260 168.4
2030.0 0.268 167.1
2031.0 0.276 166.0
2032.0 0.285 164.9
2033.0 0.293 163.8
2034.0 0.301 162.8
2035.0 0.309 161.9
2036.0 0.317 161.0
2037.0 0.325 160.1
2038.0 0.333 159.3
2039.0 0.341 158.6
2040.0 0.349 157.8
2041.0 0.356 157.1
2042.0 0.364 156.5
2043.0 0.371 155.8
2044.0 0.378 155.2
2045.0 0.386 154.6
2046.0 0.393 154.0
2047.0 0.400 153.5
2048.0 0.406 152.9
2049.0 0.413 152.4
2050.0 0.420 151.9
2051.0 0.426 151.4
2052.0 0.432 150.9
2053.0 0.438 150.5
2054.0 0.444 150.0
2055.0 0.450 149.6
2056.0 0.456 149.2
2057.0 0.462 148.7
2058.0 0.467 148.3
2059.0 0.472 147.9
2060.0 0.477 147.6
2061.0 0.482 147.2
2062.0 0.487 146.8
2063.0 0.492 146.4
2064.0 0.496 146.1
2065.0 0.501 145.7
2066.0 0.505 145.4
2067.0 0.509 145.0
2068.0 0.513 144.7
2069.0 0.516 144.4
2070.0 0.520 144.1
2071.0 0.523 143.7
2072.0 0.527 143.4
2073.0 0.530 143.1
2074.0 0.532 142.8
2075.0 0.535 142.5
2076.0 0.538 142.2
2077.0 0.540 141.9
2078.0 0.542 141.6
2079.0 0.544 141.3
2080.0 0.546 141.0
2081.0 0.547 140.7
2082.0 0.549 140.4
2083.0 0.550 140.1
2084.0 0.551 139.8
2085.0 0.552 139.5
2086.0 0.552 139.3
2087.0 0.552 139.0
2088.0 0.553 138.7
2089.0 0.553 138.4
2090.0 0.552 138.1
2091.0 0.552 137.8
2092.0 0.551 137.5
2093.0 0.550 137.3
2094.0 0.549 137.0
2095.0 0.548 136.7
2096.0 0.546 136.4
2097.0 0.544 136.1
2098.0 0.542 135.8
2099.0 0.540 135.5
2100.0 0.537 135.2
2101.0 0.535 134.9
2102.0 0.532 134.6
2103.0 0.528 134.3
2104.0 0.525 134.0
2105.0 0.521 133.6
2106.0 0.517 133.3
2107.0 0.513 133.0
2108.0 0.508 132.6
2109.0 0.503 132.3
2110.0 0.498 132.0
2111.0 0.492 131.6
2112.0 0.487 131.2
2113.0 0.480 130.9
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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