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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:17:13

Orbital Elements for HDS1875

WDS:	HDS1875	WDS ID/Discoverer
P:	41.400	Orbital period (years)
a:	0.203	Semi-major axis (arcseconds)
i:	118.8	Inclination (degrees)
Ω:	196.5	Longitude of ascending node (degrees)
T:	2019.508	Epoch of periastron passage (year)
e:	0.528	Eccentricity
ω:	231.8	Longitude of periastron (degrees)
Start-Year:	2005.0	Year
End-Year:	2045.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS1875

Position:	132143.88-391840.0	Epoch-2000 right ascension and declination
WDS-ID:	13217-3919	WDS designation
Discoverer Code:	HDS1875	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	116064	HD catalog number
Hipparcos number:	65201	Hipparcos catalog number
V1:	8.96	Magnitude of the primary
V2:	12.14	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2023	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS1875

WDS 6th Orbit including measures of HDS1875

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

Ephemeris of HDS1875

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.173    205.3
-------------------------
2005.0     0.159    140.0
2006.0     0.149    133.8
2007.0     0.138    126.7
2008.0     0.130    118.5
2009.0     0.122    109.2
2010.0     0.117     98.9
2011.0     0.114     87.9
2012.0     0.114     76.7
2013.0     0.116     65.5
2014.0     0.119     54.9
2015.0     0.122     44.8
2016.0     0.123     35.1
2017.0     0.119     25.2
2018.0     0.107     13.8
2019.0     0.084    357.8
2020.0     0.057    326.5
2021.0     0.053    270.9
2022.0     0.081    235.4
2023.0     0.115    219.7
2024.0     0.146    211.1
2025.0     0.173    205.3
2026.0     0.195    201.0
2027.0     0.213    197.4
2028.0     0.227    194.4
2029.0     0.238    191.7
2030.0     0.247    189.2
2031.0     0.253    186.9
2032.0     0.256    184.6
2033.0     0.258    182.4
2034.0     0.258    180.2
2035.0     0.256    178.0
2036.0     0.253    175.7
2037.0     0.248    173.4
2038.0     0.242    171.0
2039.0     0.235    168.4
2040.0     0.227    165.6
2041.0     0.218    162.7
2042.0     0.208    159.4
2043.0     0.197    155.8
2044.0     0.186    151.9

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.