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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 19:05:41

Orbital Elements for HDS2745
WDS: HDS2745 WDS ID/Discoverer
P: 161.700 Orbital period (years)
a: 0.893 Semi-major axis (arcseconds)
i: 145.9 Inclination (degrees)
Ω: 18.1 Longitude of ascending node (degrees)
T: 2124.630 Epoch of periastron passage (year)
e: 0.549 Eccentricity
ω: 209.7 Longitude of periastron (degrees)
Start-Year: 1945.0 Year
End-Year: 2105.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS2745
Position: 192316.46-063507.3 Epoch-2000 right ascension and declination
WDS-ID: 19233-0635 WDS designation
Discoverer Code: HDS2745 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 182085 HD catalog number
Hipparcos number: 95299 Hipparcos catalog number
V1: 9.85 Magnitude of the primary
V2: 13.19 Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for HDS2745



WDS 6th Orbit including measures of HDS2745

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


Ephemeris of HDS2745
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     1.315      5.8
-------------------------
1945.0     0.606    269.5
1946.0     0.591    266.0
1947.0     0.577    262.4
1948.0     0.562    258.6
1949.0     0.549    254.7
1950.0     0.535    250.5
1951.0     0.522    246.1
1952.0     0.510    241.5
1953.0     0.498    236.6
1954.0     0.486    231.5
1955.0     0.474    226.2
1956.0     0.463    220.6
1957.0     0.452    214.7
1958.0     0.440    208.5
1959.0     0.429    202.0
1960.0     0.418    195.2
1961.0     0.407    187.9
1962.0     0.396    180.3
1963.0     0.386    172.2
1964.0     0.378    163.8
1965.0     0.373    155.1
1966.0     0.370    146.2
1967.0     0.371    137.2
1968.0     0.376    128.4
1969.0     0.385    119.9
1970.0     0.398    111.9
1971.0     0.415    104.4
1972.0     0.434     97.6
1973.0     0.456     91.4
1974.0     0.479     85.8
1975.0     0.504     80.7
1976.0     0.529     76.1
1977.0     0.556     71.9
1978.0     0.582     68.1
1979.0     0.609     64.6
1980.0     0.636     61.4
1981.0     0.662     58.5
1982.0     0.688     55.8
1983.0     0.714     53.3
1984.0     0.740     51.0
1985.0     0.764     48.8
1986.0     0.789     46.8
1987.0     0.813     44.9
1988.0     0.836     43.1
1989.0     0.859     41.4
1990.0     0.881     39.7
1991.0     0.902     38.2
1992.0     0.923     36.7
1993.0     0.943     35.3
1994.0     0.963     33.9
1995.0     0.982     32.6
1996.0     1.001     31.4
1997.0     1.019     30.2
1998.0     1.036     29.0
1999.0     1.053     27.9
2000.0     1.069     26.8
2001.0     1.085     25.7
2002.0     1.100     24.7
2003.0     1.115     23.7
2004.0     1.129     22.7
2005.0     1.142     21.8
2006.0     1.155     20.9
2007.0     1.168     19.9
2008.0     1.180     19.0
2009.0     1.192     18.2
2010.0     1.203     17.3
2011.0     1.213     16.5
2012.0     1.223     15.6
2013.0     1.233     14.8
2014.0     1.242     14.0
2015.0     1.251     13.2
2016.0     1.259     12.5
2017.0     1.267     11.7
2018.0     1.275     10.9
2019.0     1.282     10.2
2020.0     1.288      9.4
2021.0     1.294      8.7
2022.0     1.300      8.0
2023.0     1.305      7.2
2024.0     1.310      6.5
2025.0     1.315      5.8
2026.0     1.319      5.1
2027.0     1.323      4.4
2028.0     1.326      3.7
2029.0     1.329      3.0
2030.0     1.331      2.3
2031.0     1.334      1.6
2032.0     1.335      0.9
2033.0     1.337      0.2
2034.0     1.338    359.5
2035.0     1.338    358.9
2036.0     1.339    358.2
2037.0     1.339    357.5
2038.0     1.338    356.8
2039.0     1.337    356.1
2040.0     1.336    355.4
2041.0     1.335    354.7
2042.0     1.333    354.1
2043.0     1.331    353.4
2044.0     1.328    352.7
2045.0     1.325    352.0
2046.0     1.322    351.3
2047.0     1.319    350.6
2048.0     1.315    349.9
2049.0     1.310    349.1
2050.0     1.306    348.4
2051.0     1.301    347.7
2052.0     1.296    347.0
2053.0     1.290    346.2
2054.0     1.284    345.5
2055.0     1.278    344.7
2056.0     1.272    344.0
2057.0     1.265    343.2
2058.0     1.258    342.5
2059.0     1.250    341.7
2060.0     1.242    340.9
2061.0     1.234    340.1
2062.0     1.226    339.3
2063.0     1.217    338.4
2064.0     1.208    337.6
2065.0     1.199    336.8
2066.0     1.189    335.9
2067.0     1.179    335.0
2068.0     1.169    334.1
2069.0     1.158    333.2
2070.0     1.148    332.3
2071.0     1.136    331.4
2072.0     1.125    330.4
2073.0     1.113    329.4
2074.0     1.101    328.4
2075.0     1.089    327.4
2076.0     1.077    326.3
2077.0     1.064    325.3
2078.0     1.051    324.2
2079.0     1.037    323.0
2080.0     1.024    321.9
2081.0     1.010    320.7
2082.0     0.996    319.5
2083.0     0.982    318.2
2084.0     0.967    316.9
2085.0     0.952    315.6
2086.0     0.937    314.2
2087.0     0.922    312.8
2088.0     0.907    311.3
2089.0     0.891    309.8
2090.0     0.876    308.2
2091.0     0.860    306.6
2092.0     0.844    304.9
2093.0     0.828    303.1
2094.0     0.811    301.3
2095.0     0.795    299.4
2096.0     0.779    297.4
2097.0     0.762    295.3
2098.0     0.746    293.2
2099.0     0.729    290.9
2100.0     0.713    288.6
2101.0     0.696    286.1
2102.0     0.680    283.5
2103.0     0.664    280.8
2104.0     0.648    277.9



 

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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