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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:39:08
WDS:
HU1173
WDS ID/Discoverer
P:
110.500
Orbital period (years)
a:
0.154
Semi-major axis (arcseconds)
i:
38.0
Inclination (degrees)
Ω:
47.0
Longitude of ascending node (degrees)
T:
1966.500
Epoch of periastron passage (year)
e:
0.75
Eccentricity
ω:
208.0
Longitude of periastron (degrees)
Start-Year:
1970.0
Year
End-Year:
2080.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
163003.67+335311.1
Epoch-2000 right ascension and declination
WDS-ID:
16301+3353
WDS designation
Discoverer Code:
HU1173
Discover designation and components
ADS number:
10085
Aitken Double Star catalog
HD number:
148909
HD catalog number
Hipparcos number:
80806
Hipparcos catalog number
V1:
8.91
Magnitude of the primary
V2:
9.45
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
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 0.256 71.7
-------------------------
1970.0 0.051 344.3
1971.0 0.062 356.9
1972.0 0.073 5.8
1973.0 0.084 12.3
1974.0 0.094 17.4
1975.0 0.104 21.5
1976.0 0.113 25.0
1977.0 0.122 27.9
1978.0 0.130 30.4
1979.0 0.138 32.7
1980.0 0.146 34.7
1981.0 0.153 36.5
1982.0 0.160 38.1
1983.0 0.166 39.6
1984.0 0.172 41.0
1985.0 0.178 42.4
1986.0 0.184 43.6
1987.0 0.189 44.7
1988.0 0.194 45.8
1989.0 0.199 46.9
1990.0 0.203 47.9
1991.0 0.208 48.8
1992.0 0.212 49.7
1993.0 0.216 50.6
1994.0 0.220 51.5
1995.0 0.223 52.3
1996.0 0.226 53.1
1997.0 0.230 53.9
1998.0 0.233 54.6
1999.0 0.235 55.4
2000.0 0.238 56.1
2001.0 0.240 56.8
2002.0 0.243 57.5
2003.0 0.245 58.1
2004.0 0.247 58.8
2005.0 0.249 59.5
2006.0 0.250 60.1
2007.0 0.252 60.8
2008.0 0.253 61.4
2009.0 0.254 62.0
2010.0 0.255 62.6
2011.0 0.256 63.3
2012.0 0.257 63.9
2013.0 0.258 64.5
2014.0 0.258 65.1
2015.0 0.259 65.7
2016.0 0.259 66.3
2017.0 0.259 66.9
2018.0 0.259 67.5
2019.0 0.259 68.1
2020.0 0.259 68.7
2021.0 0.258 69.3
2022.0 0.258 69.9
2023.0 0.257 70.5
2024.0 0.256 71.1
2025.0 0.256 71.7
2026.0 0.255 72.3
2027.0 0.253 73.0
2028.0 0.252 73.6
2029.0 0.251 74.2
2030.0 0.249 74.9
2031.0 0.248 75.5
2032.0 0.246 76.2
2033.0 0.244 76.9
2034.0 0.242 77.5
2035.0 0.240 78.2
2036.0 0.237 78.9
2037.0 0.235 79.7
2038.0 0.233 80.4
2039.0 0.230 81.2
2040.0 0.227 81.9
2041.0 0.224 82.7
2042.0 0.221 83.5
2043.0 0.218 84.4
2044.0 0.215 85.2
2045.0 0.211 86.1
2046.0 0.207 87.0
2047.0 0.204 88.0
2048.0 0.200 89.0
2049.0 0.196 90.0
2050.0 0.192 91.1
2051.0 0.187 92.2
2052.0 0.183 93.4
2053.0 0.178 94.6
2054.0 0.173 95.9
2055.0 0.168 97.3
2056.0 0.163 98.8
2057.0 0.158 100.3
2058.0 0.153 102.0
2059.0 0.147 103.8
2060.0 0.141 105.7
2061.0 0.135 107.8
2062.0 0.129 110.1
2063.0 0.123 112.6
2064.0 0.117 115.4
2065.0 0.110 118.6
2066.0 0.103 122.1
2067.0 0.097 126.1
2068.0 0.090 130.8
2069.0 0.083 136.2
2070.0 0.076 142.6
2071.0 0.069 150.2
2072.0 0.063 159.5
2073.0 0.057 170.8
2074.0 0.051 184.8
2075.0 0.046 202.0
2076.0 0.041 223.2
2077.0 0.037 249.7
2078.0 0.035 281.7
2079.0 0.038 312.8
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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