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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:05:22
WDS:
I883
WDS ID/Discoverer
P:
154.300
Orbital period (years)
a:
0.224
Semi-major axis (arcseconds)
i:
35.3
Inclination (degrees)
Ω:
129.8
Longitude of ascending node (degrees)
T:
1976.810
Epoch of periastron passage (year)
e:
0.64
Eccentricity
ω:
311.7
Longitude of periastron (degrees)
Start-Year:
1948.0
Year
End-Year:
2102.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
112647.30-530935.8
Epoch-2000 right ascension and declination
WDS-ID:
11268-5310
WDS designation
Discoverer Code:
I883
Discover designation and components
ADS number:
.
Aitken Double Star catalog
HD number:
99574
HD catalog number
Hipparcos number:
55849
Hipparcos catalog number
V1:
6.83
Magnitude of the primary
V2:
6.52
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2009
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 0.277 244.9
-------------------------
1948.0 0.255 303.8
1949.0 0.251 304.9
1950.0 0.246 306.1
1951.0 0.240 307.3
1952.0 0.235 308.6
1953.0 0.229 310.0
1954.0 0.224 311.4
1955.0 0.218 312.9
1956.0 0.211 314.5
1957.0 0.205 316.2
1958.0 0.198 318.0
1959.0 0.191 320.0
1960.0 0.184 322.1
1961.0 0.176 324.3
1962.0 0.168 326.8
1963.0 0.160 329.5
1964.0 0.152 332.5
1965.0 0.143 335.9
1966.0 0.134 339.7
1967.0 0.125 344.1
1968.0 0.116 349.1
1969.0 0.107 355.0
1970.0 0.098 2.0
1971.0 0.090 10.3
1972.0 0.082 20.3
1973.0 0.076 32.2
1974.0 0.071 45.8
1975.0 0.070 60.6
1976.0 0.070 75.7
1977.0 0.073 89.9
1978.0 0.078 102.8
1979.0 0.083 114.1
1980.0 0.089 124.0
1981.0 0.095 132.7
1982.0 0.100 140.4
1983.0 0.106 147.3
1984.0 0.111 153.6
1985.0 0.116 159.3
1986.0 0.121 164.6
1987.0 0.126 169.4
1988.0 0.131 173.9
1989.0 0.135 178.0
1990.0 0.140 181.9
1991.0 0.145 185.5
1992.0 0.149 188.9
1993.0 0.154 192.1
1994.0 0.158 195.1
1995.0 0.163 198.0
1996.0 0.168 200.7
1997.0 0.172 203.2
1998.0 0.176 205.6
1999.0 0.181 207.9
2000.0 0.185 210.1
2001.0 0.190 212.2
2002.0 0.194 214.2
2003.0 0.198 216.1
2004.0 0.202 218.0
2005.0 0.207 219.7
2006.0 0.211 221.4
2007.0 0.215 223.0
2008.0 0.219 224.6
2009.0 0.223 226.1
2010.0 0.226 227.6
2011.0 0.230 229.0
2012.0 0.234 230.3
2013.0 0.238 231.6
2014.0 0.241 232.9
2015.0 0.245 234.2
2016.0 0.249 235.4
2017.0 0.252 236.5
2018.0 0.255 237.7
2019.0 0.259 238.8
2020.0 0.262 239.9
2021.0 0.265 240.9
2022.0 0.268 242.0
2023.0 0.271 243.0
2024.0 0.274 244.0
2025.0 0.277 244.9
2026.0 0.280 245.9
2027.0 0.283 246.8
2028.0 0.286 247.7
2029.0 0.288 248.6
2030.0 0.291 249.5
2031.0 0.293 250.3
2032.0 0.296 251.2
2033.0 0.298 252.0
2034.0 0.301 252.8
2035.0 0.303 253.6
2036.0 0.305 254.4
2037.0 0.307 255.2
2038.0 0.309 256.0
2039.0 0.311 256.7
2040.0 0.313 257.5
2041.0 0.315 258.2
2042.0 0.316 259.0
2043.0 0.318 259.7
2044.0 0.320 260.4
2045.0 0.321 261.2
2046.0 0.323 261.9
2047.0 0.324 262.6
2048.0 0.325 263.3
2049.0 0.327 263.9
2050.0 0.328 264.6
2051.0 0.329 265.3
2052.0 0.330 266.0
2053.0 0.331 266.7
2054.0 0.331 267.3
2055.0 0.332 268.0
2056.0 0.333 268.7
2057.0 0.333 269.3
2058.0 0.334 270.0
2059.0 0.334 270.6
2060.0 0.335 271.3
2061.0 0.335 272.0
2062.0 0.335 272.6
2063.0 0.335 273.3
2064.0 0.335 273.9
2065.0 0.335 274.6
2066.0 0.335 275.2
2067.0 0.335 275.9
2068.0 0.334 276.5
2069.0 0.334 277.2
2070.0 0.333 277.9
2071.0 0.333 278.5
2072.0 0.332 279.2
2073.0 0.331 279.8
2074.0 0.330 280.5
2075.0 0.329 281.2
2076.0 0.328 281.9
2077.0 0.327 282.6
2078.0 0.325 283.3
2079.0 0.324 283.9
2080.0 0.323 284.6
2081.0 0.321 285.4
2082.0 0.319 286.1
2083.0 0.317 286.8
2084.0 0.315 287.5
2085.0 0.313 288.3
2086.0 0.311 289.0
2087.0 0.309 289.8
2088.0 0.306 290.6
2089.0 0.304 291.4
2090.0 0.301 292.2
2091.0 0.298 293.0
2092.0 0.295 293.8
2093.0 0.292 294.7
2094.0 0.289 295.5
2095.0 0.285 296.4
2096.0 0.282 297.4
2097.0 0.278 298.3
2098.0 0.274 299.3
2099.0 0.270 300.2
2100.0 0.266 301.3
2101.0 0.261 302.3
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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