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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:00:18

Orbital Elements for HDS1542AB
WDS: HDS1542AB WDS ID/Discoverer
P: 121.700 Orbital period (years)
a: 0.518 Semi-major axis (arcseconds)
i: 60.5 Inclination (degrees)
Ω: 235.0 Longitude of ascending node (degrees)
T: 2100.600 Epoch of periastron passage (year)
e: 0.412 Eccentricity
ω: 250.4 Longitude of periastron (degrees)
Start-Year: 1965.0 Year
End-Year: 2085.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS1542AB
Position: 104724.29+023532.0 Epoch-2000 right ascension and declination
WDS-ID: 10474+0236 WDS designation
Discoverer Code: HDS1542AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 52774 Hipparcos catalog number
V1: 12.91 Magnitude of the primary
V2: 13.20 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2015 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for HDS1542AB



WDS 6th Orbit including measures of HDS1542AB

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


Ephemeris of HDS1542AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.523    265.3
-------------------------
1965.0     0.406     47.2
1966.0     0.400     49.4
1967.0     0.392     51.7
1968.0     0.382     54.1
1969.0     0.370     56.6
1970.0     0.357     59.3
1971.0     0.341     62.2
1972.0     0.324     65.4
1973.0     0.304     69.1
1974.0     0.283     73.2
1975.0     0.261     78.0
1976.0     0.237     83.8
1977.0     0.214     90.8
1978.0     0.192     99.5
1979.0     0.173    110.3
1980.0     0.159    123.4
1981.0     0.153    138.2
1982.0     0.155    153.4
1983.0     0.166    167.4
1984.0     0.183    179.1
1985.0     0.205    188.7
1986.0     0.229    196.2
1987.0     0.254    202.4
1988.0     0.280    207.4
1989.0     0.305    211.5
1990.0     0.329    215.1
1991.0     0.352    218.1
1992.0     0.374    220.8
1993.0     0.395    223.2
1994.0     0.415    225.4
1995.0     0.433    227.4
1996.0     0.449    229.2
1997.0     0.465    230.9
1998.0     0.479    232.5
1999.0     0.491    234.1
2000.0     0.503    235.5
2001.0     0.513    236.9
2002.0     0.523    238.2
2003.0     0.531    239.5
2004.0     0.538    240.7
2005.0     0.544    241.9
2006.0     0.550    243.1
2007.0     0.554    244.3
2008.0     0.558    245.5
2009.0     0.560    246.6
2010.0     0.562    247.7
2011.0     0.564    248.8
2012.0     0.564    250.0
2013.0     0.564    251.1
2014.0     0.563    252.2
2015.0     0.562    253.3
2016.0     0.560    254.5
2017.0     0.558    255.6
2018.0     0.555    256.7
2019.0     0.552    257.9
2020.0     0.548    259.1
2021.0     0.543    260.3
2022.0     0.539    261.5
2023.0     0.534    262.7
2024.0     0.528    264.0
2025.0     0.523    265.3
2026.0     0.517    266.6
2027.0     0.510    268.0
2028.0     0.504    269.3
2029.0     0.497    270.8
2030.0     0.490    272.2
2031.0     0.483    273.7
2032.0     0.476    275.3
2033.0     0.469    276.9
2034.0     0.461    278.5
2035.0     0.454    280.2
2036.0     0.446    282.0
2037.0     0.439    283.8
2038.0     0.432    285.7
2039.0     0.424    287.6
2040.0     0.417    289.6
2041.0     0.410    291.7
2042.0     0.403    293.9
2043.0     0.396    296.1
2044.0     0.390    298.4
2045.0     0.383    300.8
2046.0     0.378    303.3
2047.0     0.372    305.8
2048.0     0.367    308.4
2049.0     0.362    311.1
2050.0     0.358    313.8
2051.0     0.354    316.6
2052.0     0.351    319.5
2053.0     0.348    322.4
2054.0     0.346    325.4
2055.0     0.344    328.4
2056.0     0.343    331.4
2057.0     0.343    334.4
2058.0     0.343    337.5
2059.0     0.343    340.5
2060.0     0.345    343.5
2061.0     0.346    346.5
2062.0     0.348    349.4
2063.0     0.351    352.4
2064.0     0.354    355.2
2065.0     0.358    358.0
2066.0     0.362      0.8
2067.0     0.366      3.5
2068.0     0.370      6.1
2069.0     0.375      8.7
2070.0     0.379     11.2
2071.0     0.384     13.6
2072.0     0.389     16.0
2073.0     0.393     18.4
2074.0     0.398     20.6
2075.0     0.402     22.9
2076.0     0.406     25.0
2077.0     0.409     27.2
2078.0     0.412     29.3
2079.0     0.415     31.4
2080.0     0.417     33.4
2081.0     0.418     35.5
2082.0     0.419     37.5
2083.0     0.418     39.5
2084.0     0.417     41.6






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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