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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:12:30

Orbital Elements for DAW63

WDS:	DAW63	WDS ID/Discoverer
P:	56.850	Orbital period (years)
a:	0.387	Semi-major axis (arcseconds)
i:	21.6	Inclination (degrees)
Ω:	194.5	Longitude of ascending node (degrees)
T:	2021.020	Epoch of periastron passage (year)
e:	0.287	Eccentricity
ω:	3.7	Longitude of periastron (degrees)
Start-Year:	1997.0	Year
End-Year:	2053.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for DAW63

Position:	123938.94-371713.0	Epoch-2000 right ascension and declination
WDS-ID:	12396-3717	WDS designation
Discoverer Code:	DAW63	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	110035	HD catalog number
Hipparcos number:	61775	Hipparcos catalog number
V1:	9.97	Magnitude of the primary
V2:	9.81	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2014	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for DAW63

WDS 6th Orbit including measures of DAW63

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

Ephemeris of DAW63

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.284    241.4
-------------------------
1997.0     0.486     33.2
1998.0     0.481     36.8
1999.0     0.474     40.5
2000.0     0.467     44.3
2001.0     0.458     48.3
2002.0     0.449     52.4
2003.0     0.439     56.7
2004.0     0.428     61.2
2005.0     0.417     65.9
2006.0     0.404     70.9
2007.0     0.392     76.2
2008.0     0.379     81.9
2009.0     0.366     88.0
2010.0     0.354     94.5
2011.0     0.341    101.5
2012.0     0.329    109.0
2013.0     0.318    117.1
2014.0     0.309    125.7
2015.0     0.300    134.8
2016.0     0.293    144.5
2017.0     0.287    154.5
2018.0     0.282    165.0
2019.0     0.279    175.7
2020.0     0.277    186.7
2021.0     0.276    197.7
2022.0     0.276    208.8
2023.0     0.277    219.9
2024.0     0.280    230.8
2025.0     0.284    241.4
2026.0     0.290    251.7
2027.0     0.297    261.5
2028.0     0.307    270.8
2029.0     0.317    279.5
2030.0     0.329    287.6
2031.0     0.342    295.1
2032.0     0.355    302.1
2033.0     0.368    308.6
2034.0     0.382    314.6
2035.0     0.395    320.2
2036.0     0.408    325.4
2037.0     0.420    330.4
2038.0     0.432    335.0
2039.0     0.443    339.5
2040.0     0.453    343.7
2041.0     0.462    347.7
2042.0     0.470    351.6
2043.0     0.477    355.4
2044.0     0.483    359.0
2045.0     0.488      2.6
2046.0     0.492      6.1
2047.0     0.495      9.6
2048.0     0.497     13.0
2049.0     0.498     16.4
2050.0     0.498     19.8
2051.0     0.496     23.3
2052.0     0.494     26.7

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.