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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:05:54

Orbital Elements for HDS650

WDS:	HDS650	WDS ID/Discoverer
P:	39.300	Orbital period (years)
a:	0.242	Semi-major axis (arcseconds)
i:	93.8	Inclination (degrees)
Ω:	341.0	Longitude of ascending node (degrees)
T:	2058.300	Epoch of periastron passage (year)
e:	0.49	Eccentricity
ω:	196.0	Longitude of periastron (degrees)
Start-Year:	2006.0	Year
End-Year:	2044.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS650

Position:	050052.14+610729.1	Epoch-2000 right ascension and declination
WDS-ID:	05009+6107	WDS designation
Discoverer Code:	HDS650	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	23317	Hipparcos catalog number
V1:	10.33	Magnitude of the primary
V2:	12.27	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS650

WDS 6th Orbit including measures of HDS650

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

Ephemeris of HDS650

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.143    345.7
-------------------------
2006.0     0.248    337.7
2007.0     0.224    337.1
2008.0     0.197    336.4
2009.0     0.167    335.5
2010.0     0.136    334.1
2011.0     0.102    331.9
2012.0     0.067    327.3
2013.0     0.031    312.2
2014.0     0.018    211.9
2015.0     0.050    174.6
2016.0     0.084    167.3
2017.0     0.111    164.1
2018.0     0.125    161.9
2019.0     0.119    159.9
2020.0     0.090    157.1
2021.0     0.047    150.0
2022.0     0.011     53.4
2023.0     0.054    353.5
2024.0     0.101    347.8
2025.0     0.143    345.7
2026.0     0.181    344.5
2027.0     0.215    343.7
2028.0     0.245    343.1
2029.0     0.271    342.7
2030.0     0.292    342.3
2031.0     0.311    341.9
2032.0     0.326    341.6
2033.0     0.337    341.3
2034.0     0.346    341.1
2035.0     0.351    340.8
2036.0     0.354    340.6
2037.0     0.353    340.3
2038.0     0.350    340.1
2039.0     0.344    339.8
2040.0     0.336    339.6
2041.0     0.325    339.3
2042.0     0.311    339.0
2043.0     0.295    338.6

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.