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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:36:26

Orbital Elements for HDS333

WDS:	HDS333	WDS ID/Discoverer
P:	49.540	Orbital period (years)
a:	0.413	Semi-major axis (arcseconds)
i:	57.4	Inclination (degrees)
Ω:	252.6	Longitude of ascending node (degrees)
T:	1981.140	Epoch of periastron passage (year)
e:	0.6	Eccentricity
ω:	150.9	Longitude of periastron (degrees)
Start-Year:	2001.0	Year
End-Year:	2049.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS333

Position:	023313.38-515619.2	Epoch-2000 right ascension and declination
WDS-ID:	02332-5156	WDS designation
Discoverer Code:	HDS333	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	16077	HD catalog number
Hipparcos number:	11877	Hipparcos catalog number
V1:	8.65	Magnitude of the primary
V2:	10.87	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2018	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS333

WDS 6th Orbit including measures of HDS333

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

Ephemeris of HDS333

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.297    275.2
-------------------------
2001.0     0.537    227.9
2002.0     0.554    229.7
2003.0     0.569    231.4
2004.0     0.583    233.0
2005.0     0.594    234.6
2006.0     0.604    236.0
2007.0     0.611    237.5
2008.0     0.617    238.9
2009.0     0.620    240.3
2010.0     0.621    241.7
2011.0     0.620    243.1
2012.0     0.617    244.5
2013.0     0.611    245.9
2014.0     0.603    247.3
2015.0     0.592    248.8
2016.0     0.578    250.4
2017.0     0.562    252.0
2018.0     0.542    253.8
2019.0     0.519    255.7
2020.0     0.493    257.8
2021.0     0.462    260.1
2022.0     0.428    262.8
2023.0     0.389    266.0
2024.0     0.345    270.0
2025.0     0.297    275.2
2026.0     0.244    282.5
2027.0     0.187    294.2
2028.0     0.135    315.6
2029.0     0.107    354.8
2030.0     0.126     36.8
2031.0     0.161     62.9
2032.0     0.180     81.0
2033.0     0.183     97.0
2034.0     0.180    113.2
2035.0     0.179    130.0
2036.0     0.185    146.3
2037.0     0.199    160.9
2038.0     0.219    173.2
2039.0     0.245    183.2
2040.0     0.272    191.3
2041.0     0.301    197.8
2042.0     0.330    203.2
2043.0     0.359    207.7
2044.0     0.387    211.5
2045.0     0.414    214.8
2046.0     0.440    217.8
2047.0     0.464    220.4
2048.0     0.487    222.7

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.