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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:32:29
WDS:
B1299
WDS ID/Discoverer
P:
97.100
Orbital period (years)
a:
0.271
Semi-major axis (arcseconds)
i:
137.1
Inclination (degrees)
Ω:
156.2
Longitude of ascending node (degrees)
T:
1975.800
Epoch of periastron passage (year)
e:
0.543
Eccentricity
ω:
186.2
Longitude of periastron (degrees)
Start-Year:
1977.0
Year
End-Year:
2073.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
153615.44-385046.8
Epoch-2000 right ascension and declination
WDS-ID:
15363-3851
WDS designation
Discoverer Code:
B1299
Discover designation and components
ADS number:
.
Aitken Double Star catalog
HD number:
138875
HD catalog number
Hipparcos number:
76405
Hipparcos catalog number
V1:
9.97
Magnitude of the primary
V2:
8.96
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2022
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 0.417 151.0
-------------------------
1977.0 0.121 318.2
1978.0 0.119 306.6
1979.0 0.117 294.5
1980.0 0.117 282.2
1981.0 0.119 270.2
1982.0 0.124 258.8
1983.0 0.130 248.4
1984.0 0.139 239.1
1985.0 0.149 231.0
1986.0 0.161 224.1
1987.0 0.172 218.0
1988.0 0.185 212.7
1989.0 0.197 208.1
1990.0 0.210 204.1
1991.0 0.222 200.5
1992.0 0.234 197.3
1993.0 0.246 194.3
1994.0 0.257 191.7
1995.0 0.268 189.3
1996.0 0.279 187.0
1997.0 0.289 185.0
1998.0 0.299 183.0
1999.0 0.309 181.2
2000.0 0.318 179.5
2001.0 0.327 177.9
2002.0 0.335 176.4
2003.0 0.343 174.9
2004.0 0.350 173.5
2005.0 0.357 172.2
2006.0 0.364 170.9
2007.0 0.370 169.6
2008.0 0.376 168.4
2009.0 0.381 167.2
2010.0 0.386 166.1
2011.0 0.391 165.0
2012.0 0.395 163.9
2013.0 0.399 162.9
2014.0 0.403 161.8
2015.0 0.406 160.8
2016.0 0.408 159.8
2017.0 0.411 158.8
2018.0 0.413 157.8
2019.0 0.414 156.8
2020.0 0.416 155.8
2021.0 0.417 154.9
2022.0 0.417 153.9
2023.0 0.417 152.9
2024.0 0.417 152.0
2025.0 0.417 151.0
2026.0 0.416 150.1
2027.0 0.415 149.1
2028.0 0.413 148.1
2029.0 0.411 147.1
2030.0 0.409 146.1
2031.0 0.406 145.1
2032.0 0.403 144.1
2033.0 0.400 143.0
2034.0 0.396 142.0
2035.0 0.392 140.9
2036.0 0.387 139.8
2037.0 0.383 138.7
2038.0 0.377 137.5
2039.0 0.372 136.3
2040.0 0.366 135.1
2041.0 0.360 133.8
2042.0 0.353 132.5
2043.0 0.346 131.1
2044.0 0.339 129.7
2045.0 0.331 128.2
2046.0 0.323 126.7
2047.0 0.315 125.0
2048.0 0.306 123.3
2049.0 0.297 121.4
2050.0 0.288 119.5
2051.0 0.278 117.4
2052.0 0.268 115.2
2053.0 0.258 112.7
2054.0 0.248 110.1
2055.0 0.237 107.3
2056.0 0.226 104.2
2057.0 0.215 100.7
2058.0 0.204 96.9
2059.0 0.193 92.7
2060.0 0.183 87.9
2061.0 0.172 82.6
2062.0 0.162 76.6
2063.0 0.153 69.8
2064.0 0.145 62.2
2065.0 0.138 53.8
2066.0 0.132 44.6
2067.0 0.128 34.7
2068.0 0.126 24.3
2069.0 0.125 13.6
2070.0 0.125 2.9
2071.0 0.125 352.2
2072.0 0.125 341.4
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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