Content-Type: text/html; charset=UTF-8
Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:56:20
WDS:
A578AA,AB
WDS ID/Discoverer
P:
143.769
Orbital period (years)
a:
0.2859
Semi-major axis (arcseconds)
i:
121.1
Inclination (degrees)
Ω:
27.0
Longitude of ascending node (degrees)
T:
2032.260
Epoch of periastron passage (year)
e:
0.6032
Eccentricity
ω:
262.7
Longitude of periastron (degrees)
Start-Year:
1954.0
Year
End-Year:
2096.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
181749.51+435032.0
Epoch-2000 right ascension and declination
WDS-ID:
18178+4351
WDS designation
Discoverer Code:
A578AA,AB
Discover designation and components
ADS number:
11247
Aitken Double Star catalog
HD number:
.
HD catalog number
Hipparcos number:
89655
Hipparcos catalog number
V1:
9.55
Magnitude of the primary
V2:
10.64
Magnitude of the secondary
Equinox:
Equinox
Date:
1997
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 0.154 202.2
-------------------------
1954.0 0.250 319.8
1955.0 0.248 318.5
1956.0 0.247 317.1
1957.0 0.246 315.7
1958.0 0.245 314.3
1959.0 0.243 312.9
1960.0 0.242 311.5
1961.0 0.241 310.0
1962.0 0.240 308.6
1963.0 0.239 307.1
1964.0 0.238 305.6
1965.0 0.237 304.1
1966.0 0.237 302.6
1967.0 0.236 301.1
1968.0 0.235 299.6
1969.0 0.234 298.1
1970.0 0.234 296.5
1971.0 0.233 295.0
1972.0 0.233 293.4
1973.0 0.232 291.9
1974.0 0.232 290.3
1975.0 0.231 288.7
1976.0 0.231 287.1
1977.0 0.231 285.6
1978.0 0.231 284.0
1979.0 0.231 282.4
1980.0 0.231 280.8
1981.0 0.231 279.2
1982.0 0.231 277.6
1983.0 0.231 276.1
1984.0 0.231 274.5
1985.0 0.231 272.9
1986.0 0.231 271.3
1987.0 0.231 269.7
1988.0 0.232 268.2
1989.0 0.232 266.6
1990.0 0.232 265.0
1991.0 0.232 263.4
1992.0 0.233 261.9
1993.0 0.233 260.3
1994.0 0.233 258.8
1995.0 0.234 257.2
1996.0 0.234 255.7
1997.0 0.234 254.2
1998.0 0.234 252.6
1999.0 0.234 251.1
2000.0 0.235 249.6
2001.0 0.235 248.0
2002.0 0.235 246.5
2003.0 0.234 245.0
2004.0 0.234 243.4
2005.0 0.234 241.9
2006.0 0.233 240.3
2007.0 0.232 238.8
2008.0 0.232 237.2
2009.0 0.230 235.6
2010.0 0.229 234.0
2011.0 0.228 232.4
2012.0 0.226 230.8
2013.0 0.223 229.1
2014.0 0.221 227.4
2015.0 0.218 225.6
2016.0 0.215 223.8
2017.0 0.211 222.0
2018.0 0.206 220.0
2019.0 0.201 218.0
2020.0 0.196 215.9
2021.0 0.189 213.6
2022.0 0.182 211.2
2023.0 0.174 208.5
2024.0 0.164 205.5
2025.0 0.154 202.2
2026.0 0.142 198.3
2027.0 0.129 193.7
2028.0 0.115 188.1
2029.0 0.100 180.7
2030.0 0.085 170.7
2031.0 0.071 156.6
2032.0 0.061 136.9
2033.0 0.059 113.0
2034.0 0.065 90.6
2035.0 0.077 73.7
2036.0 0.092 61.8
2037.0 0.108 53.3
2038.0 0.124 47.0
2039.0 0.138 42.0
2040.0 0.152 38.0
2041.0 0.165 34.7
2042.0 0.177 31.8
2043.0 0.187 29.2
2044.0 0.197 27.0
2045.0 0.206 24.9
2046.0 0.214 23.0
2047.0 0.222 21.2
2048.0 0.228 19.5
2049.0 0.234 18.0
2050.0 0.240 16.5
2051.0 0.245 15.0
2052.0 0.250 13.7
2053.0 0.254 12.3
2054.0 0.257 11.0
2055.0 0.261 9.8
2056.0 0.264 8.5
2057.0 0.266 7.3
2058.0 0.269 6.2
2059.0 0.271 5.0
2060.0 0.272 3.9
2061.0 0.274 2.7
2062.0 0.275 1.6
2063.0 0.276 0.5
2064.0 0.277 359.4
2065.0 0.278 358.3
2066.0 0.278 357.2
2067.0 0.279 356.1
2068.0 0.279 355.0
2069.0 0.279 354.0
2070.0 0.279 352.9
2071.0 0.279 351.8
2072.0 0.278 350.7
2073.0 0.278 349.6
2074.0 0.277 348.5
2075.0 0.277 347.4
2076.0 0.276 346.3
2077.0 0.275 345.2
2078.0 0.274 344.1
2079.0 0.273 343.0
2080.0 0.272 341.8
2081.0 0.271 340.7
2082.0 0.270 339.5
2083.0 0.269 338.4
2084.0 0.268 337.2
2085.0 0.267 336.0
2086.0 0.265 334.8
2087.0 0.264 333.6
2088.0 0.263 332.4
2089.0 0.261 331.2
2090.0 0.260 329.9
2091.0 0.259 328.7
2092.0 0.257 327.4
2093.0 0.256 326.1
2094.0 0.255 324.8
2095.0 0.253 323.5
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 .
www.stella-vega.de