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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:31:49

Orbital Elements for HDS3146

WDS:	HDS3146	WDS ID/Discoverer
P:	37.000	Orbital period (years)
a:	0.122	Semi-major axis (arcseconds)
i:	134.4	Inclination (degrees)
Ω:	177.7	Longitude of ascending node (degrees)
T:	2014.240	Epoch of periastron passage (year)
e:	0.6	Eccentricity
ω:	48.2	Longitude of periastron (degrees)
Start-Year:	2007.0	Year
End-Year:	2043.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS3146

Position:	220825.32-440326.2	Epoch-2000 right ascension and declination
WDS-ID:	22084-4403	WDS designation
Discoverer Code:	HDS3146	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	210022	HD catalog number
Hipparcos number:	109288	Hipparcos catalog number
V1:	9.97	Magnitude of the primary
V2:	10.30	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:		Flags

Double Star Orbit for HDS3146

WDS 6th Orbit including measures of HDS3146

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

Ephemeris of HDS3146

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.163    341.6
-------------------------
2007.0     0.098    266.3
2008.0     0.091    257.1
2009.0     0.084    246.4
2010.0     0.078    234.0
2011.0     0.072    219.6
2012.0     0.066    202.7
2013.0     0.057    181.6
2014.0     0.044    150.3
2015.0     0.037     97.0
2016.0     0.050     50.3
2017.0     0.071     27.6
2018.0     0.091     15.2
2019.0     0.108      7.0
2020.0     0.122      0.9
2021.0     0.134    356.0
2022.0     0.144    351.8
2023.0     0.152    348.1
2024.0     0.158    344.8
2025.0     0.163    341.6
2026.0     0.167    338.7
2027.0     0.170    335.8
2028.0     0.171    333.0
2029.0     0.171    330.2
2030.0     0.171    327.5
2031.0     0.169    324.7
2032.0     0.167    321.8
2033.0     0.164    318.9
2034.0     0.161    315.8
2035.0     0.156    312.6
2036.0     0.152    309.2
2037.0     0.146    305.5
2038.0     0.140    301.6
2039.0     0.134    297.2
2040.0     0.127    292.4
2041.0     0.120    287.1
2042.0     0.112    281.1

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.