Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 17:11:55

Orbital Elements for DON93BC
WDS: DON93BC WDS ID/Discoverer
P: 116.600 Orbital period (years)
a: 1.287 Semi-major axis (arcseconds)
i: 139.3 Inclination (degrees)
Ω: 93.3 Longitude of ascending node (degrees)
T: 2005.800 Epoch of periastron passage (year)
e: 0.293 Eccentricity
ω: 280.3 Longitude of periastron (degrees)
Start-Year: 1967.0 Year
End-Year: 2083.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for DON93BC
Position: 050649.47-213503.7 Epoch-2000 right ascension and declination
WDS-ID: 05069-2135 WDS designation
Discoverer Code: DON93BC Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 11.71 Magnitude of the primary
V2: 12.9 Magnitude of the secondary
Equinox: Equinox
Date: 2020 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for DON93BC



WDS 6th Orbit including measures of DON93BC

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)


Ephemeris of DON93BC
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     1.180     83.4
-------------------------
1967.0     1.377    309.0
1968.0     1.378    307.0
1969.0     1.379    305.1
1970.0     1.379    303.1
1971.0     1.378    301.2
1972.0     1.376    299.2
1973.0     1.373    297.3
1974.0     1.369    295.3
1975.0     1.363    293.3
1976.0     1.356    291.3
1977.0     1.348    289.3
1978.0     1.339    287.2
1979.0     1.328    285.1
1980.0     1.315    283.0
1981.0     1.301    280.8
1982.0     1.285    278.6
1983.0     1.267    276.3
1984.0     1.248    274.0
1985.0     1.226    271.6
1986.0     1.203    269.1
1987.0     1.178    266.4
1988.0     1.151    263.7
1989.0     1.123    260.8
1990.0     1.092    257.8
1991.0     1.061    254.6
1992.0     1.027    251.2
1993.0     0.993    247.6
1994.0     0.957    243.7
1995.0     0.921    239.5
1996.0     0.886    234.9
1997.0     0.850    230.0
1998.0     0.817    224.7
1999.0     0.785    218.9
2000.0     0.756    212.6
2001.0     0.732    205.9
2002.0     0.713    198.8
2003.0     0.699    191.4
2004.0     0.693    183.7
2005.0     0.693    176.0
2006.0     0.700    168.3
2007.0     0.713    160.9
2008.0     0.733    153.8
2009.0     0.757    147.1
2010.0     0.784    140.8
2011.0     0.815    135.0
2012.0     0.846    129.6
2013.0     0.879    124.7
2014.0     0.912    120.0
2015.0     0.944    115.7
2016.0     0.976    111.7
2017.0     1.006    107.9
2018.0     1.034    104.4
2019.0     1.061    101.0
2020.0     1.085     97.8
2021.0     1.108     94.7
2022.0     1.129     91.7
2023.0     1.148     88.9
2024.0     1.165     86.1
2025.0     1.180     83.4
2026.0     1.193     80.8
2027.0     1.205     78.2
2028.0     1.215     75.7
2029.0     1.224     73.2
2030.0     1.231     70.7
2031.0     1.237     68.3
2032.0     1.242     65.9
2033.0     1.246     63.5
2034.0     1.249     61.1
2035.0     1.251     58.7
2036.0     1.253     56.4
2037.0     1.254     54.0
2038.0     1.254     51.6
2039.0     1.254     49.3
2040.0     1.253     46.9
2041.0     1.252     44.6
2042.0     1.251     42.2
2043.0     1.250     39.8
2044.0     1.249     37.4
2045.0     1.247     35.1
2046.0     1.246     32.7
2047.0     1.245     30.3
2048.0     1.244     27.9
2049.0     1.244     25.5
2050.0     1.243     23.1
2051.0     1.243     20.7
2052.0     1.243     18.3
2053.0     1.244     15.9
2054.0     1.245     13.5
2055.0     1.246     11.1
2056.0     1.248      8.7
2057.0     1.250      6.4
2058.0     1.252      4.0
2059.0     1.255      1.6
2060.0     1.259    359.3
2061.0     1.263    357.0
2062.0     1.267    354.6
2063.0     1.271    352.3
2064.0     1.276    350.0
2065.0     1.281    347.8
2066.0     1.286    345.5
2067.0     1.292    343.3
2068.0     1.298    341.1
2069.0     1.304    338.9
2070.0     1.310    336.7
2071.0     1.316    334.6
2072.0     1.322    332.4
2073.0     1.328    330.3
2074.0     1.334    328.2
2075.0     1.340    326.2
2076.0     1.346    324.1
2077.0     1.352    322.1
2078.0     1.357    320.1
2079.0     1.361    318.1
2080.0     1.366    316.1
2081.0     1.370    314.1
2082.0     1.373    312.1






Disclaimer
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.


Acknowledgements
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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