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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:03:28
WDS:
B2009
WDS ID/Discoverer
P:
143.400
Orbital period (years)
a:
0.278
Semi-major axis (arcseconds)
i:
140.0
Inclination (degrees)
Ω:
113.5
Longitude of ascending node (degrees)
T:
1971.480
Epoch of periastron passage (year)
e:
0.239
Eccentricity
ω:
118.5
Longitude of periastron (degrees)
Start-Year:
1954.0
Year
End-Year:
2096.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
111248.95-740139.7
Epoch-2000 right ascension and declination
WDS-ID:
11128-7402
WDS designation
Discoverer Code:
B2009
Discover designation and components
ADS number:
.
Aitken Double Star catalog
HD number:
97708
HD catalog number
Hipparcos number:
.
Hipparcos catalog number
V1:
9.8
Magnitude of the primary
V2:
10.2
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2022
Date of last observation
Orbit grade:
4
Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:
Flags
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Click to expand/collapse ephemeris:
Year Sep[“] PA[°]
---------------------------------------------
2025.0 0.253 205.0
-------------------------
1954.0 0.208 69.9
1955.0 0.202 66.5
1956.0 0.197 62.8
1957.0 0.192 59.0
1958.0 0.187 55.0
1959.0 0.182 50.7
1960.0 0.178 46.3
1961.0 0.174 41.6
1962.0 0.171 36.8
1963.0 0.169 31.8
1964.0 0.167 26.6
1965.0 0.166 21.4
1966.0 0.165 16.1
1967.0 0.165 10.8
1968.0 0.166 5.6
1969.0 0.168 0.4
1970.0 0.170 355.4
1971.0 0.173 350.5
1972.0 0.176 345.7
1973.0 0.180 341.2
1974.0 0.184 336.8
1975.0 0.188 332.7
1976.0 0.192 328.7
1977.0 0.197 324.9
1978.0 0.201 321.2
1979.0 0.206 317.7
1980.0 0.210 314.4
1981.0 0.214 311.2
1982.0 0.218 308.1
1983.0 0.222 305.1
1984.0 0.225 302.2
1985.0 0.229 299.4
1986.0 0.232 296.7
1987.0 0.235 294.1
1988.0 0.237 291.5
1989.0 0.240 288.9
1990.0 0.242 286.4
1991.0 0.243 284.0
1992.0 0.245 281.6
1993.0 0.246 279.2
1994.0 0.247 276.8
1995.0 0.248 274.5
1996.0 0.249 272.1
1997.0 0.250 269.8
1998.0 0.250 267.5
1999.0 0.250 265.2
2000.0 0.251 262.9
2001.0 0.251 260.6
2002.0 0.251 258.3
2003.0 0.250 256.0
2004.0 0.250 253.7
2005.0 0.250 251.4
2006.0 0.250 249.1
2007.0 0.250 246.8
2008.0 0.249 244.5
2009.0 0.249 242.1
2010.0 0.249 239.8
2011.0 0.249 237.5
2012.0 0.248 235.1
2013.0 0.248 232.8
2014.0 0.248 230.4
2015.0 0.248 228.1
2016.0 0.248 225.8
2017.0 0.249 223.4
2018.0 0.249 221.1
2019.0 0.249 218.8
2020.0 0.250 216.4
2021.0 0.250 214.1
2022.0 0.251 211.8
2023.0 0.252 209.5
2024.0 0.252 207.3
2025.0 0.253 205.0
2026.0 0.255 202.8
2027.0 0.256 200.6
2028.0 0.257 198.4
2029.0 0.258 196.2
2030.0 0.260 194.0
2031.0 0.261 191.9
2032.0 0.263 189.8
2033.0 0.265 187.7
2034.0 0.266 185.7
2035.0 0.268 183.7
2036.0 0.270 181.7
2037.0 0.272 179.7
2038.0 0.274 177.8
2039.0 0.276 175.9
2040.0 0.278 174.0
2041.0 0.280 172.1
2042.0 0.282 170.3
2043.0 0.284 168.5
2044.0 0.286 166.7
2045.0 0.288 165.0
2046.0 0.290 163.2
2047.0 0.292 161.5
2048.0 0.294 159.8
2049.0 0.295 158.2
2050.0 0.297 156.5
2051.0 0.299 154.9
2052.0 0.301 153.3
2053.0 0.302 151.7
2054.0 0.304 150.1
2055.0 0.305 148.6
2056.0 0.306 147.0
2057.0 0.308 145.5
2058.0 0.309 144.0
2059.0 0.310 142.5
2060.0 0.310 141.0
2061.0 0.311 139.5
2062.0 0.312 138.0
2063.0 0.312 136.5
2064.0 0.312 135.0
2065.0 0.312 133.5
2066.0 0.312 132.1
2067.0 0.312 130.6
2068.0 0.311 129.1
2069.0 0.311 127.6
2070.0 0.310 126.1
2071.0 0.309 124.6
2072.0 0.308 123.1
2073.0 0.306 121.6
2074.0 0.305 120.0
2075.0 0.303 118.4
2076.0 0.301 116.9
2077.0 0.299 115.3
2078.0 0.296 113.6
2079.0 0.293 112.0
2080.0 0.290 110.3
2081.0 0.287 108.5
2082.0 0.284 106.8
2083.0 0.280 104.9
2084.0 0.276 103.1
2085.0 0.272 101.2
2086.0 0.268 99.2
2087.0 0.263 97.1
2088.0 0.259 95.0
2089.0 0.254 92.8
2090.0 0.249 90.5
2091.0 0.243 88.1
2092.0 0.238 85.7
2093.0 0.233 83.0
2094.0 0.227 80.3
2095.0 0.221 77.4
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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