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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 16:53:40

Orbital Elements for RST2321
WDS: RST2321 WDS ID/Discoverer
P: 96.260 Orbital period (years)
a: 0.215 Semi-major axis (arcseconds)
i: 43.9 Inclination (degrees)
Ω: 11.5 Longitude of ascending node (degrees)
T: 2013.990 Epoch of periastron passage (year)
e: 0.832 Eccentricity
ω: 155.8 Longitude of periastron (degrees)
Start-Year: 1977.0 Year
End-Year: 2073.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for RST2321
Position: 034613.16-242327.7 Epoch-2000 right ascension and declination
WDS-ID: 03462-2423 WDS designation
Discoverer Code: RST2321 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 23686 HD catalog number
Hipparcos number: 17600 Hipparcos catalog number
V1: 9.37 Magnitude of the primary
V2: 9.72 Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for RST2321



WDS 6th Orbit including measures of RST2321

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


Ephemeris of RST2321
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.170    321.8
-------------------------
1977.0     0.372    359.0
1978.0     0.370    359.5
1979.0     0.367    360.0
1980.0     0.365      0.5
1981.0     0.362      1.0
1982.0     0.359      1.6
1983.0     0.355      2.1
1984.0     0.352      2.6
1985.0     0.348      3.2
1986.0     0.343      3.8
1987.0     0.339      4.4
1988.0     0.334      5.0
1989.0     0.328      5.6
1990.0     0.323      6.3
1991.0     0.317      7.0
1992.0     0.310      7.7
1993.0     0.304      8.4
1994.0     0.296      9.2
1995.0     0.289     10.0
1996.0     0.281     10.8
1997.0     0.272     11.7
1998.0     0.263     12.7
1999.0     0.254     13.7
2000.0     0.244     14.8
2001.0     0.233     16.1
2002.0     0.222     17.4
2003.0     0.210     18.9
2004.0     0.197     20.6
2005.0     0.183     22.5
2006.0     0.168     24.7
2007.0     0.152     27.4
2008.0     0.135     30.8
2009.0     0.117     35.1
2010.0     0.097     41.2
2011.0     0.075     50.7
2012.0     0.052     68.2
2013.0     0.034    108.8
2014.0     0.035    174.1
2015.0     0.043    220.1
2016.0     0.052    251.4
2017.0     0.064    272.3
2018.0     0.078    286.2
2019.0     0.092    295.9
2020.0     0.106    303.0
2021.0     0.120    308.4
2022.0     0.133    312.7
2023.0     0.146    316.3
2024.0     0.159    319.3
2025.0     0.170    321.8
2026.0     0.182    324.1
2027.0     0.193    326.0
2028.0     0.203    327.8
2029.0     0.214    329.4
2030.0     0.223    330.8
2031.0     0.233    332.2
2032.0     0.242    333.4
2033.0     0.250    334.5
2034.0     0.259    335.6
2035.0     0.266    336.6
2036.0     0.274    337.5
2037.0     0.281    338.4
2038.0     0.288    339.3
2039.0     0.295    340.1
2040.0     0.301    340.9
2041.0     0.308    341.6
2042.0     0.313    342.3
2043.0     0.319    343.0
2044.0     0.324    343.7
2045.0     0.329    344.3
2046.0     0.334    345.0
2047.0     0.339    345.6
2048.0     0.343    346.2
2049.0     0.347    346.8
2050.0     0.351    347.3
2051.0     0.354    347.9
2052.0     0.358    348.4
2053.0     0.361    349.0
2054.0     0.363    349.5
2055.0     0.366    350.0
2056.0     0.368    350.5
2057.0     0.370    351.0
2058.0     0.372    351.5
2059.0     0.374    352.0
2060.0     0.375    352.5
2061.0     0.377    353.0
2062.0     0.378    353.5
2063.0     0.378    354.0
2064.0     0.379    354.5
2065.0     0.379    354.9
2066.0     0.379    355.4
2067.0     0.379    355.9
2068.0     0.378    356.4
2069.0     0.378    356.9
2070.0     0.377    357.4
2071.0     0.375    357.9
2072.0     0.374    358.3






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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