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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:00:18
WDS:
HDS1542AB
WDS ID/Discoverer
P:
121.700
Orbital period (years)
a:
0.518
Semi-major axis (arcseconds)
i:
60.5
Inclination (degrees)
Ω:
235.0
Longitude of ascending node (degrees)
T:
2100.600
Epoch of periastron passage (year)
e:
0.412
Eccentricity
ω:
250.4
Longitude of periastron (degrees)
Start-Year:
1965.0
Year
End-Year:
2085.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
104724.29+023532.0
Epoch-2000 right ascension and declination
WDS-ID:
10474+0236
WDS designation
Discoverer Code:
HDS1542AB
Discover designation and components
ADS number:
.
Aitken Double Star catalog
HD number:
.
HD catalog number
Hipparcos number:
52774
Hipparcos catalog number
V1:
12.91
Magnitude of the primary
V2:
13.20
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2015
Date of last observation
Orbit grade:
5
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 0.523 265.3
-------------------------
1965.0 0.406 47.2
1966.0 0.400 49.4
1967.0 0.392 51.7
1968.0 0.382 54.1
1969.0 0.370 56.6
1970.0 0.357 59.3
1971.0 0.341 62.2
1972.0 0.324 65.4
1973.0 0.304 69.1
1974.0 0.283 73.2
1975.0 0.261 78.0
1976.0 0.237 83.8
1977.0 0.214 90.8
1978.0 0.192 99.5
1979.0 0.173 110.3
1980.0 0.159 123.4
1981.0 0.153 138.2
1982.0 0.155 153.4
1983.0 0.166 167.4
1984.0 0.183 179.1
1985.0 0.205 188.7
1986.0 0.229 196.2
1987.0 0.254 202.4
1988.0 0.280 207.4
1989.0 0.305 211.5
1990.0 0.329 215.1
1991.0 0.352 218.1
1992.0 0.374 220.8
1993.0 0.395 223.2
1994.0 0.415 225.4
1995.0 0.433 227.4
1996.0 0.449 229.2
1997.0 0.465 230.9
1998.0 0.479 232.5
1999.0 0.491 234.1
2000.0 0.503 235.5
2001.0 0.513 236.9
2002.0 0.523 238.2
2003.0 0.531 239.5
2004.0 0.538 240.7
2005.0 0.544 241.9
2006.0 0.550 243.1
2007.0 0.554 244.3
2008.0 0.558 245.5
2009.0 0.560 246.6
2010.0 0.562 247.7
2011.0 0.564 248.8
2012.0 0.564 250.0
2013.0 0.564 251.1
2014.0 0.563 252.2
2015.0 0.562 253.3
2016.0 0.560 254.5
2017.0 0.558 255.6
2018.0 0.555 256.7
2019.0 0.552 257.9
2020.0 0.548 259.1
2021.0 0.543 260.3
2022.0 0.539 261.5
2023.0 0.534 262.7
2024.0 0.528 264.0
2025.0 0.523 265.3
2026.0 0.517 266.6
2027.0 0.510 268.0
2028.0 0.504 269.3
2029.0 0.497 270.8
2030.0 0.490 272.2
2031.0 0.483 273.7
2032.0 0.476 275.3
2033.0 0.469 276.9
2034.0 0.461 278.5
2035.0 0.454 280.2
2036.0 0.446 282.0
2037.0 0.439 283.8
2038.0 0.432 285.7
2039.0 0.424 287.6
2040.0 0.417 289.6
2041.0 0.410 291.7
2042.0 0.403 293.9
2043.0 0.396 296.1
2044.0 0.390 298.4
2045.0 0.383 300.8
2046.0 0.378 303.3
2047.0 0.372 305.8
2048.0 0.367 308.4
2049.0 0.362 311.1
2050.0 0.358 313.8
2051.0 0.354 316.6
2052.0 0.351 319.5
2053.0 0.348 322.4
2054.0 0.346 325.4
2055.0 0.344 328.4
2056.0 0.343 331.4
2057.0 0.343 334.4
2058.0 0.343 337.5
2059.0 0.343 340.5
2060.0 0.345 343.5
2061.0 0.346 346.5
2062.0 0.348 349.4
2063.0 0.351 352.4
2064.0 0.354 355.2
2065.0 0.358 358.0
2066.0 0.362 0.8
2067.0 0.366 3.5
2068.0 0.370 6.1
2069.0 0.375 8.7
2070.0 0.379 11.2
2071.0 0.384 13.6
2072.0 0.389 16.0
2073.0 0.393 18.4
2074.0 0.398 20.6
2075.0 0.402 22.9
2076.0 0.406 25.0
2077.0 0.409 27.2
2078.0 0.412 29.3
2079.0 0.415 31.4
2080.0 0.417 33.4
2081.0 0.418 35.5
2082.0 0.419 37.5
2083.0 0.418 39.5
2084.0 0.417 41.6
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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