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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:42:01

Orbital Elements for HDS3346AB

WDS:	HDS3346AB	WDS ID/Discoverer
P:	48.500	Orbital period (years)
a:	0.121	Semi-major axis (arcseconds)
i:	80.8	Inclination (degrees)
Ω:	8.3	Longitude of ascending node (degrees)
T:	2020.440	Epoch of periastron passage (year)
e:	0.577	Eccentricity
ω:	241.8	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 HDS3346AB

Position:	232935.97-400104.8	Epoch-2000 right ascension and declination
WDS-ID:	23296-4001	WDS designation
Discoverer Code:	HDS3346AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	221138	HD catalog number
Hipparcos number:	115957	Hipparcos catalog number
V1:	8.99	Magnitude of the primary
V2:	10.18	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 HDS3346AB

WDS 6th Orbit including measures of HDS3346AB

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

Ephemeris of HDS3346AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.085      5.3
-------------------------
2001.0     0.059     37.1
2002.0     0.052     41.7
2003.0     0.044     47.9
2004.0     0.037     56.5
2005.0     0.032     68.6
2006.0     0.027     85.2
2007.0     0.026    105.4
2008.0     0.028    125.1
2009.0     0.032    141.0
2010.0     0.038    152.5
2011.0     0.045    160.8
2012.0     0.052    166.9
2013.0     0.058    171.6
2014.0     0.064    175.3
2015.0     0.069    178.6
2016.0     0.071    181.5
2017.0     0.071    184.2
2018.0     0.066    187.2
2019.0     0.055    191.0
2020.0     0.036    198.0
2021.0     0.012    232.1
2022.0     0.022    344.7
2023.0     0.047    358.5
2024.0     0.068      2.9
2025.0     0.085      5.3
2026.0     0.099      7.0
2027.0     0.111      8.2
2028.0     0.119      9.3
2029.0     0.126     10.3
2030.0     0.131     11.1
2031.0     0.134     11.9
2032.0     0.137     12.7
2033.0     0.138     13.5
2034.0     0.138     14.2
2035.0     0.137     15.0
2036.0     0.135     15.7
2037.0     0.133     16.5
2038.0     0.129     17.3
2039.0     0.125     18.2
2040.0     0.121     19.1
2041.0     0.116     20.2
2042.0     0.111     21.3
2043.0     0.105     22.5
2044.0     0.099     23.8
2045.0     0.092     25.4
2046.0     0.085     27.2
2047.0     0.078     29.4
2048.0     0.070     31.9

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.