Content-Type: text/html; charset=UTF-8
Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:16:02
WDS:
I1227
WDS ID/Discoverer
P:
100.880
Orbital period (years)
a:
0.317
Semi-major axis (arcseconds)
i:
133.2
Inclination (degrees)
Ω:
26.2
Longitude of ascending node (degrees)
T:
1981.740
Epoch of periastron passage (year)
e:
0.647
Eccentricity
ω:
90.2
Longitude of periastron (degrees)
Start-Year:
1975.0
Year
End-Year:
2075.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
131323.38-504159.2
Epoch-2000 right ascension and declination
WDS-ID:
13134-5042
WDS designation
Discoverer Code:
I1227
Discover designation and components
ADS number:
.
Aitken Double Star catalog
HD number:
114772
HD catalog number
Hipparcos number:
64515
Hipparcos catalog number
V1:
6.56
Magnitude of the primary
V2:
6.78
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2006
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 0.355 126.5
-------------------------
1975.0 0.196 29.9
1976.0 0.180 24.6
1977.0 0.162 18.2
1978.0 0.141 10.0
1979.0 0.119 358.9
1980.0 0.098 342.7
1981.0 0.081 318.7
1982.0 0.077 287.7
1983.0 0.089 259.6
1984.0 0.109 240.1
1985.0 0.131 227.0
1986.0 0.152 217.6
1987.0 0.171 210.5
1988.0 0.189 204.7
1989.0 0.204 199.8
1990.0 0.218 195.6
1991.0 0.230 191.9
1992.0 0.241 188.5
1993.0 0.251 185.4
1994.0 0.260 182.5
1995.0 0.268 179.8
1996.0 0.275 177.3
1997.0 0.282 174.9
1998.0 0.288 172.6
1999.0 0.294 170.3
2000.0 0.299 168.2
2001.0 0.304 166.2
2002.0 0.309 164.2
2003.0 0.313 162.2
2004.0 0.317 160.3
2005.0 0.320 158.5
2006.0 0.324 156.7
2007.0 0.327 154.9
2008.0 0.330 153.2
2009.0 0.332 151.5
2010.0 0.335 149.8
2011.0 0.337 148.1
2012.0 0.339 146.5
2013.0 0.341 144.9
2014.0 0.343 143.3
2015.0 0.345 141.7
2016.0 0.346 140.1
2017.0 0.348 138.6
2018.0 0.349 137.0
2019.0 0.350 135.5
2020.0 0.351 134.0
2021.0 0.352 132.5
2022.0 0.353 130.9
2023.0 0.354 129.5
2024.0 0.355 128.0
2025.0 0.355 126.5
2026.0 0.356 125.0
2027.0 0.356 123.5
2028.0 0.357 122.0
2029.0 0.357 120.6
2030.0 0.357 119.1
2031.0 0.357 117.6
2032.0 0.357 116.2
2033.0 0.357 114.7
2034.0 0.357 113.2
2035.0 0.357 111.8
2036.0 0.357 110.3
2037.0 0.357 108.8
2038.0 0.356 107.4
2039.0 0.356 105.9
2040.0 0.355 104.4
2041.0 0.355 102.9
2042.0 0.354 101.4
2043.0 0.353 99.9
2044.0 0.352 98.4
2045.0 0.351 96.9
2046.0 0.350 95.4
2047.0 0.349 93.8
2048.0 0.347 92.3
2049.0 0.346 90.7
2050.0 0.344 89.2
2051.0 0.342 87.6
2052.0 0.341 86.0
2053.0 0.339 84.4
2054.0 0.336 82.7
2055.0 0.334 81.0
2056.0 0.331 79.4
2057.0 0.329 77.6
2058.0 0.326 75.9
2059.0 0.322 74.1
2060.0 0.319 72.3
2061.0 0.315 70.4
2062.0 0.311 68.5
2063.0 0.307 66.6
2064.0 0.302 64.5
2065.0 0.297 62.4
2066.0 0.291 60.3
2067.0 0.285 58.0
2068.0 0.278 55.7
2069.0 0.271 53.2
2070.0 0.263 50.6
2071.0 0.254 47.8
2072.0 0.245 44.8
2073.0 0.234 41.5
2074.0 0.222 37.9
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 .
www.stella-vega.de