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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 16:25:33
WDS:
A2308
WDS ID/Discoverer
P:
141.800
Orbital period (years)
a:
0.367
Semi-major axis (arcseconds)
i:
62.9
Inclination (degrees)
Ω:
306.6
Longitude of ascending node (degrees)
T:
1958.950
Epoch of periastron passage (year)
e:
0.124
Eccentricity
ω:
10.5
Longitude of periastron (degrees)
Start-Year:
1955.0
Year
End-Year:
2095.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
010245.24+021341.6
Epoch-2000 right ascension and declination
WDS-ID:
01028+0214
WDS designation
Discoverer Code:
A2308
Discover designation and components
ADS number:
864
Aitken Double Star catalog
HD number:
.
HD catalog number
Hipparcos number:
4886
Hipparcos catalog number
V1:
9.87
Magnitude of the primary
V2:
11.73
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2014
Date of last observation
Orbit grade:
3
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 0.412 127.0
-------------------------
1955.0 0.322 305.5
1956.0 0.322 307.0
1957.0 0.321 308.5
1958.0 0.319 310.0
1959.0 0.317 311.5
1960.0 0.314 313.1
1961.0 0.310 314.6
1962.0 0.306 316.3
1963.0 0.301 317.9
1964.0 0.295 319.7
1965.0 0.289 321.5
1966.0 0.282 323.4
1967.0 0.275 325.4
1968.0 0.268 327.5
1969.0 0.260 329.7
1970.0 0.251 332.1
1971.0 0.243 334.6
1972.0 0.234 337.3
1973.0 0.225 340.2
1974.0 0.217 343.4
1975.0 0.208 346.8
1976.0 0.200 350.5
1977.0 0.192 354.6
1978.0 0.185 358.9
1979.0 0.178 3.6
1980.0 0.172 8.6
1981.0 0.168 14.0
1982.0 0.164 19.6
1983.0 0.162 25.5
1984.0 0.161 31.4
1985.0 0.161 37.4
1986.0 0.163 43.3
1987.0 0.166 49.0
1988.0 0.170 54.5
1989.0 0.176 59.7
1990.0 0.182 64.5
1991.0 0.190 69.0
1992.0 0.198 73.1
1993.0 0.206 76.9
1994.0 0.215 80.4
1995.0 0.224 83.6
1996.0 0.234 86.5
1997.0 0.243 89.3
1998.0 0.253 91.8
1999.0 0.263 94.1
2000.0 0.273 96.2
2001.0 0.282 98.2
2002.0 0.292 100.1
2003.0 0.301 101.9
2004.0 0.310 103.5
2005.0 0.319 105.1
2006.0 0.327 106.6
2007.0 0.335 108.0
2008.0 0.343 109.4
2009.0 0.350 110.6
2010.0 0.357 111.9
2011.0 0.364 113.1
2012.0 0.370 114.2
2013.0 0.376 115.3
2014.0 0.382 116.4
2015.0 0.387 117.4
2016.0 0.391 118.5
2017.0 0.395 119.5
2018.0 0.399 120.4
2019.0 0.402 121.4
2020.0 0.405 122.4
2021.0 0.407 123.3
2022.0 0.409 124.2
2023.0 0.410 125.1
2024.0 0.411 126.1
2025.0 0.412 127.0
2026.0 0.412 127.9
2027.0 0.411 128.8
2028.0 0.410 129.7
2029.0 0.409 130.6
2030.0 0.407 131.6
2031.0 0.404 132.5
2032.0 0.402 133.5
2033.0 0.398 134.4
2034.0 0.395 135.4
2035.0 0.390 136.4
2036.0 0.386 137.4
2037.0 0.381 138.5
2038.0 0.376 139.6
2039.0 0.370 140.7
2040.0 0.364 141.8
2041.0 0.357 143.0
2042.0 0.350 144.2
2043.0 0.343 145.5
2044.0 0.336 146.9
2045.0 0.328 148.3
2046.0 0.320 149.8
2047.0 0.312 151.3
2048.0 0.303 152.9
2049.0 0.294 154.7
2050.0 0.285 156.5
2051.0 0.276 158.5
2052.0 0.267 160.6
2053.0 0.258 162.8
2054.0 0.249 165.2
2055.0 0.240 167.8
2056.0 0.231 170.6
2057.0 0.222 173.6
2058.0 0.214 176.8
2059.0 0.206 180.3
2060.0 0.198 184.1
2061.0 0.192 188.2
2062.0 0.185 192.5
2063.0 0.180 197.2
2064.0 0.175 202.1
2065.0 0.172 207.2
2066.0 0.169 212.5
2067.0 0.168 218.0
2068.0 0.168 223.4
2069.0 0.169 228.9
2070.0 0.172 234.2
2071.0 0.175 239.3
2072.0 0.180 244.2
2073.0 0.185 248.9
2074.0 0.191 253.3
2075.0 0.198 257.4
2076.0 0.205 261.2
2077.0 0.212 264.8
2078.0 0.220 268.1
2079.0 0.228 271.1
2080.0 0.236 274.0
2081.0 0.245 276.7
2082.0 0.253 279.2
2083.0 0.260 281.5
2084.0 0.268 283.7
2085.0 0.275 285.8
2086.0 0.282 287.8
2087.0 0.289 289.7
2088.0 0.295 291.5
2089.0 0.300 293.3
2090.0 0.305 295.0
2091.0 0.310 296.6
2092.0 0.313 298.2
2093.0 0.316 299.8
2094.0 0.319 301.3
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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