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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:02:09
WDS:
HU757BC
WDS ID/Discoverer
P:
115.900
Orbital period (years)
a:
0.234
Semi-major axis (arcseconds)
i:
115.0
Inclination (degrees)
Ω:
84.6
Longitude of ascending node (degrees)
T:
1991.060
Epoch of periastron passage (year)
e:
0.284
Eccentricity
ω:
217.4
Longitude of periastron (degrees)
Start-Year:
1968.0
Year
End-Year:
2082.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
190206.53+521542.3
Epoch-2000 right ascension and declination
WDS-ID:
19021+5216
WDS designation
Discoverer Code:
HU757BC
Discover designation and components
ADS number:
11979
Aitken Double Star catalog
HD number:
177483
HD catalog number
Hipparcos number:
93466
Hipparcos catalog number
V1:
10.3
Magnitude of the primary
V2:
10.4
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
1998
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 0.264 88.7
-------------------------
1968.0 0.128 309.6
1969.0 0.132 305.5
1970.0 0.137 301.7
1971.0 0.142 298.1
1972.0 0.147 294.8
1973.0 0.152 291.8
1974.0 0.157 288.9
1975.0 0.161 286.2
1976.0 0.165 283.6
1977.0 0.169 281.1
1978.0 0.172 278.8
1979.0 0.175 276.5
1980.0 0.177 274.3
1981.0 0.178 272.1
1982.0 0.178 269.9
1983.0 0.178 267.7
1984.0 0.176 265.5
1985.0 0.174 263.3
1986.0 0.171 261.0
1987.0 0.166 258.5
1988.0 0.161 256.0
1989.0 0.155 253.2
1990.0 0.148 250.2
1991.0 0.140 246.9
1992.0 0.132 243.2
1993.0 0.123 239.0
1994.0 0.114 234.1
1995.0 0.106 228.4
1996.0 0.097 221.6
1997.0 0.090 213.7
1998.0 0.083 204.5
1999.0 0.079 194.0
2000.0 0.077 182.7
2001.0 0.078 171.2
2002.0 0.081 160.3
2003.0 0.087 150.5
2004.0 0.094 142.0
2005.0 0.103 134.8
2006.0 0.112 128.8
2007.0 0.122 123.8
2008.0 0.132 119.5
2009.0 0.142 115.8
2010.0 0.152 112.6
2011.0 0.162 109.8
2012.0 0.172 107.4
2013.0 0.182 105.2
2014.0 0.191 103.2
2015.0 0.200 101.4
2016.0 0.208 99.7
2017.0 0.216 98.2
2018.0 0.223 96.8
2019.0 0.231 95.4
2020.0 0.237 94.2
2021.0 0.243 93.0
2022.0 0.249 91.8
2023.0 0.254 90.7
2024.0 0.259 89.7
2025.0 0.264 88.7
2026.0 0.268 87.7
2027.0 0.271 86.8
2028.0 0.274 85.8
2029.0 0.277 84.9
2030.0 0.279 84.0
2031.0 0.281 83.2
2032.0 0.282 82.3
2033.0 0.283 81.4
2034.0 0.284 80.6
2035.0 0.284 79.7
2036.0 0.284 78.9
2037.0 0.283 78.0
2038.0 0.283 77.2
2039.0 0.281 76.3
2040.0 0.280 75.4
2041.0 0.278 74.5
2042.0 0.275 73.6
2043.0 0.273 72.7
2044.0 0.270 71.8
2045.0 0.267 70.8
2046.0 0.263 69.8
2047.0 0.259 68.8
2048.0 0.255 67.8
2049.0 0.251 66.7
2050.0 0.246 65.6
2051.0 0.241 64.4
2052.0 0.236 63.2
2053.0 0.231 62.0
2054.0 0.225 60.6
2055.0 0.220 59.2
2056.0 0.214 57.8
2057.0 0.208 56.2
2058.0 0.202 54.6
2059.0 0.195 52.8
2060.0 0.189 51.0
2061.0 0.182 49.0
2062.0 0.176 46.8
2063.0 0.169 44.5
2064.0 0.163 42.0
2065.0 0.157 39.3
2066.0 0.150 36.4
2067.0 0.144 33.2
2068.0 0.138 29.7
2069.0 0.133 26.0
2070.0 0.128 21.9
2071.0 0.123 17.5
2072.0 0.119 12.8
2073.0 0.115 7.8
2074.0 0.112 2.4
2075.0 0.110 356.9
2076.0 0.109 351.2
2077.0 0.109 345.4
2078.0 0.110 339.6
2079.0 0.111 333.9
2080.0 0.113 328.4
2081.0 0.116 323.1
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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