Content-Type: text/html; charset=UTF-8
Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:11:03
WDS:
A78
WDS ID/Discoverer
P:
111.930
Orbital period (years)
a:
0.263
Semi-major axis (arcseconds)
i:
49.3
Inclination (degrees)
Ω:
249.9
Longitude of ascending node (degrees)
T:
1997.500
Epoch of periastron passage (year)
e:
0.798
Eccentricity
ω:
42.1
Longitude of periastron (degrees)
Start-Year:
1970.0
Year
End-Year:
2080.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
122647.72-053531.6
Epoch-2000 right ascension and declination
WDS-ID:
12268-0536
WDS designation
Discoverer Code:
A78
Discover designation and components
ADS number:
8551
Aitken Double Star catalog
HD number:
108320
HD catalog number
Hipparcos number:
60727
Hipparcos catalog number
V1:
8.11
Magnitude of the primary
V2:
8.79
Magnitude of the secondary
Equinox:
Equinox
Date:
2007
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 0.369 85.1
-------------------------
1970.0 0.287 120.3
1971.0 0.280 121.4
1972.0 0.273 122.5
1973.0 0.266 123.7
1974.0 0.258 125.0
1975.0 0.250 126.3
1976.0 0.243 127.8
1977.0 0.234 129.3
1978.0 0.226 131.0
1979.0 0.218 132.7
1980.0 0.209 134.7
1981.0 0.200 136.8
1982.0 0.191 139.0
1983.0 0.182 141.5
1984.0 0.173 144.3
1985.0 0.164 147.4
1986.0 0.154 150.9
1987.0 0.145 154.8
1988.0 0.135 159.2
1989.0 0.126 164.4
1990.0 0.117 170.3
1991.0 0.108 177.3
1992.0 0.099 185.5
1993.0 0.091 195.2
1994.0 0.083 206.8
1995.0 0.075 220.8
1996.0 0.066 238.1
1997.0 0.053 262.5
1998.0 0.040 304.7
1999.0 0.046 357.8
2000.0 0.068 26.6
2001.0 0.092 40.6
2002.0 0.115 48.8
2003.0 0.137 54.3
2004.0 0.157 58.4
2005.0 0.175 61.6
2006.0 0.191 64.2
2007.0 0.207 66.4
2008.0 0.221 68.3
2009.0 0.235 70.0
2010.0 0.248 71.5
2011.0 0.259 72.8
2012.0 0.271 74.1
2013.0 0.281 75.2
2014.0 0.291 76.3
2015.0 0.300 77.3
2016.0 0.309 78.3
2017.0 0.317 79.1
2018.0 0.325 80.0
2019.0 0.332 80.8
2020.0 0.339 81.6
2021.0 0.346 82.3
2022.0 0.352 83.0
2023.0 0.358 83.7
2024.0 0.363 84.4
2025.0 0.369 85.1
2026.0 0.373 85.7
2027.0 0.378 86.3
2028.0 0.382 86.9
2029.0 0.386 87.5
2030.0 0.390 88.1
2031.0 0.393 88.7
2032.0 0.396 89.2
2033.0 0.399 89.8
2034.0 0.401 90.3
2035.0 0.404 90.9
2036.0 0.406 91.4
2037.0 0.408 91.9
2038.0 0.409 92.5
2039.0 0.411 93.0
2040.0 0.412 93.5
2041.0 0.413 94.0
2042.0 0.413 94.5
2043.0 0.414 95.0
2044.0 0.414 95.5
2045.0 0.414 96.0
2046.0 0.414 96.6
2047.0 0.414 97.1
2048.0 0.413 97.6
2049.0 0.413 98.1
2050.0 0.412 98.6
2051.0 0.411 99.1
2052.0 0.409 99.6
2053.0 0.408 100.2
2054.0 0.406 100.7
2055.0 0.404 101.2
2056.0 0.402 101.8
2057.0 0.400 102.3
2058.0 0.398 102.9
2059.0 0.395 103.4
2060.0 0.393 104.0
2061.0 0.390 104.5
2062.0 0.387 105.1
2063.0 0.383 105.7
2064.0 0.380 106.3
2065.0 0.376 106.9
2066.0 0.372 107.5
2067.0 0.368 108.2
2068.0 0.364 108.8
2069.0 0.360 109.5
2070.0 0.355 110.2
2071.0 0.350 110.9
2072.0 0.346 111.6
2073.0 0.341 112.4
2074.0 0.335 113.1
2075.0 0.330 113.9
2076.0 0.324 114.7
2077.0 0.318 115.6
2078.0 0.312 116.5
2079.0 0.306 117.4
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 .
www.stella-vega.de