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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:42:46

Orbital Elements for SEE492AB

WDS:	SEE492AB	WDS ID/Discoverer
P:	77.750	Orbital period (years)
a:	0.601	Semi-major axis (arcseconds)
i:	50.0	Inclination (degrees)
Ω:	72.1	Longitude of ascending node (degrees)
T:	1969.110	Epoch of periastron passage (year)
e:	0.491	Eccentricity
ω:	110.6	Longitude of periastron (degrees)
Start-Year:	1987.0	Year
End-Year:	2063.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for SEE492AB

Position:	233540.06-272925.7	Epoch-2000 right ascension and declination
WDS-ID:	23357-2729	WDS designation
Discoverer Code:	SEE492AB	Discover designation and components
ADS number:	16850	Aitken Double Star catalog
HD number:	221839	HD catalog number
Hipparcos number:	116436	Hipparcos catalog number
V1:	6.84	Magnitude of the primary
V2:	9.18	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2014	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for SEE492AB

WDS 6th Orbit including measures of SEE492AB

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

Ephemeris of SEE492AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.689     47.7
-------------------------
1987.0     0.501    306.9
1988.0     0.503    310.6
1989.0     0.506    314.3
1990.0     0.509    318.0
1991.0     0.513    321.5
1992.0     0.517    325.1
1993.0     0.521    328.6
1994.0     0.525    332.0
1995.0     0.531    335.3
1996.0     0.536    338.6
1997.0     0.542    341.9
1998.0     0.548    345.0
1999.0     0.555    348.1
2000.0     0.562    351.1
2001.0     0.570    354.0
2002.0     0.577    356.9
2003.0     0.585    359.6
2004.0     0.593      2.3
2005.0     0.601      5.0
2006.0     0.609      7.5
2007.0     0.617     10.0
2008.0     0.625     12.5
2009.0     0.632     14.8
2010.0     0.640     17.1
2011.0     0.647     19.4
2012.0     0.654     21.6
2013.0     0.661     23.8
2014.0     0.667     25.9
2015.0     0.673     28.0
2016.0     0.678     30.0
2017.0     0.683     32.0
2018.0     0.687     34.0
2019.0     0.690     36.0
2020.0     0.692     38.0
2021.0     0.694     39.9
2022.0     0.694     41.9
2023.0     0.694     43.8
2024.0     0.692     45.8
2025.0     0.689     47.7
2026.0     0.685     49.7
2027.0     0.679     51.7
2028.0     0.672     53.8
2029.0     0.663     55.9
2030.0     0.652     58.1
2031.0     0.639     60.3
2032.0     0.624     62.7
2033.0     0.606     65.1
2034.0     0.587     67.8
2035.0     0.564     70.6
2036.0     0.538     73.7
2037.0     0.509     77.1
2038.0     0.477     80.9
2039.0     0.442     85.4
2040.0     0.403     90.6
2041.0     0.361     97.1
2042.0     0.317    105.3
2043.0     0.273    116.1
2044.0     0.234    130.8
2045.0     0.207    150.4
2046.0     0.201    173.4
2047.0     0.217    195.3
2048.0     0.248    212.8
2049.0     0.286    226.1
2050.0     0.323    236.2
2051.0     0.356    244.4
2052.0     0.385    251.2
2053.0     0.409    257.1
2054.0     0.429    262.4
2055.0     0.444    267.3
2056.0     0.457    272.0
2057.0     0.467    276.3
2058.0     0.475    280.6
2059.0     0.481    284.7
2060.0     0.486    288.7
2061.0     0.490    292.6
2062.0     0.493    296.5

Disclaimer

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.