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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:43:41

Orbital Elements for HDS1296

WDS:	HDS1296	WDS ID/Discoverer
P:	32.600	Orbital period (years)
a:	0.557	Semi-major axis (arcseconds)
i:	106.8	Inclination (degrees)
Ω:	219.1	Longitude of ascending node (degrees)
T:	2003.310	Epoch of periastron passage (year)
e:	0.822	Eccentricity
ω:	131.2	Longitude of periastron (degrees)
Start-Year:	2009.0	Year
End-Year:	2041.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS1296

Position:	085704.68+113848.8	Epoch-2000 right ascension and declination
WDS-ID:	08571+1139	WDS designation
Discoverer Code:	HDS1296	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	43948	Hipparcos catalog number
V1:	10.84	Magnitude of the primary
V2:	12.66	Magnitude of the secondary
Equinox:		Equinox
Date:	2019	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS1296

WDS 6th Orbit including measures of HDS1296

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

Ephemeris of HDS1296

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.758    231.8
-------------------------
2009.0     0.269    265.3
2010.0     0.324    258.9
2011.0     0.378    254.2
2012.0     0.428    250.8
2013.0     0.476    248.0
2014.0     0.521    245.7
2015.0     0.562    243.8
2016.0     0.599    242.1
2017.0     0.633    240.7
2018.0     0.663    239.3
2019.0     0.690    238.1
2020.0     0.712    236.9
2021.0     0.731    235.8
2022.0     0.745    234.8
2023.0     0.754    233.8
2024.0     0.759    232.8
2025.0     0.758    231.8
2026.0     0.752    230.9
2027.0     0.739    229.8
2028.0     0.720    228.8
2029.0     0.692    227.7
2030.0     0.655    226.4
2031.0     0.606    225.0
2032.0     0.543    223.3
2033.0     0.461    221.1
2034.0     0.348    217.6
2035.0     0.183    209.2
2036.0     0.088     49.0
2037.0     0.138     14.1
2038.0     0.124    340.7
2039.0     0.139    306.6
2040.0     0.182    283.9

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.