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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:45:31

Orbital Elements for HEI350

WDS:	HEI350	WDS ID/Discoverer
P:	62.680	Orbital period (years)
a:	0.81	Semi-major axis (arcseconds)
i:	136.0	Inclination (degrees)
Ω:	102.3	Longitude of ascending node (degrees)
T:	1984.830	Epoch of periastron passage (year)
e:	0.2	Eccentricity
ω:	263.6	Longitude of periastron (degrees)
Start-Year:	1994.0	Year
End-Year:	2056.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HEI350

Position:	091453.72+042634.4	Epoch-2000 right ascension and declination
WDS-ID:	09149+0427	WDS designation
Discoverer Code:	HEI350	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	79555	HD catalog number
Hipparcos number:	45383	Hipparcos catalog number
V1:	8.0	Magnitude of the primary
V2:	11.0	Magnitude of the secondary
Equinox:	2000	Equinox
Date:		Date of last observation
Orbit grade:	5	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for HEI350

WDS 6th Orbit including measures of HEI350

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

Ephemeris of HEI350

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.738    334.5
-------------------------
1994.0     0.709    119.1
1995.0     0.738    114.0
1996.0     0.763    109.3
1997.0     0.785    104.9
1998.0     0.801    100.7
1999.0     0.814     96.6
2000.0     0.823     92.6
2001.0     0.828     88.7
2002.0     0.830     84.9
2003.0     0.828     81.0
2004.0     0.824     77.1
2005.0     0.818     73.2
2006.0     0.809     69.2
2007.0     0.799     65.1
2008.0     0.788     60.9
2009.0     0.776     56.5
2010.0     0.763     52.0
2011.0     0.751     47.4
2012.0     0.739     42.6
2013.0     0.728     37.7
2014.0     0.718     32.6
2015.0     0.710     27.4
2016.0     0.704     22.1
2017.0     0.700     16.7
2018.0     0.698     11.2
2019.0     0.698      5.8
2020.0     0.701      0.4
2021.0     0.705    355.0
2022.0     0.711    349.7
2023.0     0.719    344.5
2024.0     0.728    339.4
2025.0     0.738    334.5
2026.0     0.749    329.7
2027.0     0.759    325.0
2028.0     0.769    320.4
2029.0     0.778    316.0
2030.0     0.785    311.7
2031.0     0.791    307.4
2032.0     0.794    303.2
2033.0     0.794    298.9
2034.0     0.790    294.7
2035.0     0.784    290.4
2036.0     0.773    286.0
2037.0     0.758    281.5
2038.0     0.738    276.8
2039.0     0.715    271.7
2040.0     0.687    266.3
2041.0     0.656    260.4
2042.0     0.621    253.9
2043.0     0.586    246.6
2044.0     0.551    238.4
2045.0     0.519    229.1
2046.0     0.492    218.7
2047.0     0.474    207.3
2048.0     0.467    195.2
2049.0     0.471    183.1
2050.0     0.487    171.5
2051.0     0.512    160.8
2052.0     0.544    151.2
2053.0     0.579    142.8
2054.0     0.616    135.3
2055.0     0.653    128.7

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.