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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:02:32

Orbital Elements for A2992
WDS: A2992 WDS ID/Discoverer
P: 99.000 Orbital period (years)
a: 0.256 Semi-major axis (arcseconds)
i: 114.5 Inclination (degrees)
Ω: 125.9 Longitude of ascending node (degrees)
T: 1951.170 Epoch of periastron passage (year)
e: 0.835 Eccentricity
ω: 255.0 Longitude of periastron (degrees)
Start-Year: 1976.0 Year
End-Year: 2074.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A2992
Position: 190351.17+264138.1 Epoch-2000 right ascension and declination
WDS-ID: 19039+2642 WDS designation
Discoverer Code: A2992 Discover designation and components
ADS number: 11998 Aitken Double Star catalog
HD number: 337446 HD catalog number
Hipparcos number: 93615 Hipparcos catalog number
V1: 10.15 Magnitude of the primary
V2: 9.58 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1997 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for A2992



WDS 6th Orbit including measures of A2992

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


Ephemeris of A2992
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.162     32.7
-------------------------
1976.0     0.245     92.0
1977.0     0.246     91.1
1978.0     0.247     90.2
1979.0     0.247     89.3
1980.0     0.247     88.4
1981.0     0.248     87.5
1982.0     0.248     86.6
1983.0     0.247     85.7
1984.0     0.247     84.8
1985.0     0.247     83.9
1986.0     0.246     83.0
1987.0     0.245     82.1
1988.0     0.244     81.2
1989.0     0.243     80.3
1990.0     0.242     79.4
1991.0     0.241     78.5
1992.0     0.239     77.5
1993.0     0.238     76.6
1994.0     0.236     75.6
1995.0     0.235     74.6
1996.0     0.233     73.6
1997.0     0.231     72.6
1998.0     0.229     71.6
1999.0     0.227     70.5
2000.0     0.225     69.5
2001.0     0.223     68.4
2002.0     0.221     67.3
2003.0     0.219     66.2
2004.0     0.217     65.0
2005.0     0.214     63.9
2006.0     0.212     62.7
2007.0     0.209     61.4
2008.0     0.207     60.2
2009.0     0.204     58.9
2010.0     0.202     57.6
2011.0     0.199     56.2
2012.0     0.197     54.9
2013.0     0.194     53.4
2014.0     0.191     52.0
2015.0     0.189     50.5
2016.0     0.186     48.9
2017.0     0.183     47.3
2018.0     0.181     45.7
2019.0     0.178     44.0
2020.0     0.175     42.2
2021.0     0.173     40.4
2022.0     0.170     38.6
2023.0     0.167     36.7
2024.0     0.165     34.7
2025.0     0.162     32.7
2026.0     0.159     30.5
2027.0     0.157     28.4
2028.0     0.154     26.1
2029.0     0.152     23.8
2030.0     0.149     21.4
2031.0     0.147     18.9
2032.0     0.144     16.4
2033.0     0.142     13.7
2034.0     0.140     11.0
2035.0     0.138      8.1
2036.0     0.135      5.2
2037.0     0.133      2.2
2038.0     0.131    359.1
2039.0     0.128    355.8
2040.0     0.125    352.4
2041.0     0.123    348.9
2042.0     0.120    345.2
2043.0     0.116    341.3
2044.0     0.112    337.1
2045.0     0.107    332.6
2046.0     0.101    327.6
2047.0     0.092    321.7
2048.0     0.079    314.3
2049.0     0.059    302.9
2050.0     0.025    267.2
2051.0     0.036    153.8
2052.0     0.072    133.4
2053.0     0.099    125.8
2054.0     0.120    121.3
2055.0     0.137    118.0
2056.0     0.152    115.4
2057.0     0.164    113.3
2058.0     0.174    111.4
2059.0     0.184    109.7
2060.0     0.192    108.1
2061.0     0.199    106.7
2062.0     0.205    105.4
2063.0     0.211    104.1
2064.0     0.216    102.9
2065.0     0.221    101.8
2066.0     0.225    100.7
2067.0     0.228     99.6
2068.0     0.232     98.6
2069.0     0.234     97.6
2070.0     0.237     96.6
2071.0     0.239     95.7
2072.0     0.241     94.7
2073.0     0.243     93.8






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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