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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:43:51

Orbital Elements for HDS3376

WDS:	HDS3376	WDS ID/Discoverer
P:	41.260	Orbital period (years)
a:	0.365	Semi-major axis (arcseconds)
i:	67.2	Inclination (degrees)
Ω:	68.9	Longitude of ascending node (degrees)
T:	1990.330	Epoch of periastron passage (year)
e:	0.75	Eccentricity
ω:	99.3	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 HDS3376

Position:	234537.33-484037.6	Epoch-2000 right ascension and declination
WDS-ID:	23456-4841	WDS designation
Discoverer Code:	HDS3376	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	222969	HD catalog number
Hipparcos number:	117187	Hipparcos catalog number
V1:	9.90	Magnitude of the primary
V2:	11.25	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2022	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS3376

WDS 6th Orbit including measures of HDS3376

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

Ephemeris of HDS3376

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.311     47.4
-------------------------
2005.0     0.234    332.7
2006.0     0.238    338.1
2007.0     0.242    343.3
2008.0     0.247    348.3
2009.0     0.253    353.1
2010.0     0.259    357.6
2011.0     0.265      2.0
2012.0     0.272      6.1
2013.0     0.280     10.0
2014.0     0.287     13.7
2015.0     0.294     17.3
2016.0     0.300     20.6
2017.0     0.307     23.9
2018.0     0.312     27.0
2019.0     0.317     30.0
2020.0     0.320     32.9
2021.0     0.323     35.8
2022.0     0.323     38.7
2023.0     0.322     41.5
2024.0     0.318     44.4
2025.0     0.311     47.4
2026.0     0.299     50.6
2027.0     0.282     54.1
2028.0     0.258     58.2
2029.0     0.221     63.4
2030.0     0.165     71.4
2031.0     0.075     94.1
2032.0     0.075    227.8
2033.0     0.154    251.6
2034.0     0.192    261.4
2035.0     0.212    268.6
2036.0     0.223    274.9
2037.0     0.228    280.7
2038.0     0.230    286.4
2039.0     0.231    292.0
2040.0     0.230    297.6
2041.0     0.230    303.2
2042.0     0.229    308.9
2043.0     0.229    314.5
2044.0     0.230    320.2

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.