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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:33:07
WDS:
A2694
WDS ID/Discoverer
P:
94.880
Orbital period (years)
a:
0.435
Semi-major axis (arcseconds)
i:
53.0
Inclination (degrees)
Ω:
52.9
Longitude of ascending node (degrees)
T:
2000.456
Epoch of periastron passage (year)
e:
0.95
Eccentricity
ω:
287.6
Longitude of periastron (degrees)
Start-Year:
1978.0
Year
End-Year:
2072.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
222229.73-072726.5
Epoch-2000 right ascension and declination
WDS-ID:
22225-0727
WDS designation
Discoverer Code:
A2694
Discover designation and components
ADS number:
15877
Aitken Double Star catalog
HD number:
212191
HD catalog number
Hipparcos number:
.
Hipparcos catalog number
V1:
10.1
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 0.442 158.6
-------------------------
1978.0 0.483 182.6
1979.0 0.475 183.2
1980.0 0.467 183.8
1981.0 0.458 184.4
1982.0 0.449 185.0
1983.0 0.439 185.7
1984.0 0.428 186.5
1985.0 0.417 187.2
1986.0 0.405 188.0
1987.0 0.393 188.9
1988.0 0.379 189.8
1989.0 0.365 190.7
1990.0 0.349 191.8
1991.0 0.333 193.0
1992.0 0.315 194.2
1993.0 0.296 195.7
1994.0 0.275 197.3
1995.0 0.251 199.3
1996.0 0.225 201.7
1997.0 0.196 204.7
1998.0 0.162 209.0
1999.0 0.118 215.9
2000.0 0.054 235.3
2001.0 0.054 77.3
2002.0 0.093 103.0
2003.0 0.122 114.8
2004.0 0.148 122.3
2005.0 0.171 127.6
2006.0 0.192 131.7
2007.0 0.212 135.1
2008.0 0.230 137.8
2009.0 0.248 140.2
2010.0 0.265 142.2
2011.0 0.280 144.1
2012.0 0.295 145.7
2013.0 0.310 147.2
2014.0 0.324 148.5
2015.0 0.337 149.7
2016.0 0.349 150.9
2017.0 0.361 152.0
2018.0 0.373 153.0
2019.0 0.384 153.9
2020.0 0.395 154.8
2021.0 0.405 155.6
2022.0 0.415 156.4
2023.0 0.424 157.2
2024.0 0.433 157.9
2025.0 0.442 158.6
2026.0 0.450 159.3
2027.0 0.458 160.0
2028.0 0.465 160.6
2029.0 0.473 161.2
2030.0 0.479 161.8
2031.0 0.486 162.4
2032.0 0.492 163.0
2033.0 0.498 163.5
2034.0 0.504 164.0
2035.0 0.509 164.6
2036.0 0.514 165.1
2037.0 0.519 165.6
2038.0 0.523 166.1
2039.0 0.527 166.6
2040.0 0.531 167.1
2041.0 0.534 167.5
2042.0 0.537 168.0
2043.0 0.540 168.5
2044.0 0.543 168.9
2045.0 0.545 169.4
2046.0 0.547 169.8
2047.0 0.549 170.3
2048.0 0.550 170.7
2049.0 0.551 171.2
2050.0 0.552 171.6
2051.0 0.553 172.1
2052.0 0.553 172.5
2053.0 0.553 173.0
2054.0 0.553 173.4
2055.0 0.552 173.8
2056.0 0.551 174.3
2057.0 0.550 174.7
2058.0 0.548 175.2
2059.0 0.546 175.6
2060.0 0.544 176.1
2061.0 0.541 176.5
2062.0 0.538 177.0
2063.0 0.535 177.5
2064.0 0.532 177.9
2065.0 0.528 178.4
2066.0 0.523 178.9
2067.0 0.519 179.4
2068.0 0.513 179.9
2069.0 0.508 180.4
2070.0 0.502 181.0
2071.0 0.496 181.5
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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