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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:35:41

Orbital Elements for HDS3215

WDS:	HDS3215	WDS ID/Discoverer
P:	35.666	Orbital period (years)
a:	0.736	Semi-major axis (arcseconds)
i:	180.0	Inclination (degrees)
Ω:	293.5	Longitude of ascending node (degrees)
T:	1997.052	Epoch of periastron passage (year)
e:	0.211	Eccentricity
ω:	0.0	Longitude of periastron (degrees)
Start-Year:	2008.0	Year
End-Year:	2042.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS3215

Position:	223829.56-652242.4	Epoch-2000 right ascension and declination
WDS-ID:	22384-6523	WDS designation
Discoverer Code:	HDS3215	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	111766	Hipparcos catalog number
V1:	12.13	Magnitude of the primary
V2:	12.26	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2018	Date of last observation
Orbit grade:	5	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for HDS3215

WDS 6th Orbit including measures of HDS3215

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

Ephemeris of HDS3215

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.736     35.7
-------------------------
2008.0     0.816    162.7
2009.0     0.836    154.9
2010.0     0.853    147.4
2011.0     0.867    140.1
2012.0     0.878    133.1
2013.0     0.885    126.2
2014.0     0.890    119.5
2015.0     0.891    112.7
2016.0     0.889    106.0
2017.0     0.884     99.2
2018.0     0.875     92.3
2019.0     0.864     85.2
2020.0     0.849     77.9
2021.0     0.831     70.4
2022.0     0.811     62.4
2023.0     0.788     54.1
2024.0     0.763     45.2
2025.0     0.736     35.7
2026.0     0.708     25.4
2027.0     0.680     14.3
2028.0     0.653      2.3
2029.0     0.629    349.3
2030.0     0.608    335.3
2031.0     0.592    320.4
2032.0     0.583    304.9
2033.0     0.581    289.0
2034.0     0.587    273.3
2035.0     0.600    258.1
2036.0     0.619    243.7
2037.0     0.642    230.3
2038.0     0.668    217.8
2039.0     0.696    206.3
2040.0     0.724    195.7
2041.0     0.751    185.9

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.