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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:35:22

Orbital Elements for HDS3212

WDS:	HDS3212	WDS ID/Discoverer
P:	31.220	Orbital period (years)
a:	0.11	Semi-major axis (arcseconds)
i:	31.1	Inclination (degrees)
Ω:	133.6	Longitude of ascending node (degrees)
T:	2027.600	Epoch of periastron passage (year)
e:	0.357	Eccentricity
ω:	145.7	Longitude of periastron (degrees)
Start-Year:	2010.0	Year
End-Year:	2040.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS3212

Position:	223733.37+240004.9	Epoch-2000 right ascension and declination
WDS-ID:	22376+2400	WDS designation
Discoverer Code:	HDS3212	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	214398	HD catalog number
Hipparcos number:	111694	Hipparcos catalog number
V1:	7.50	Magnitude of the primary
V2:	8.32	Magnitude of the secondary
Equinox:		Equinox
Date:	2018	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS3212

WDS 6th Orbit including measures of HDS3212

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

Ephemeris of HDS3212

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.070    217.3
-------------------------
2010.0     0.137     92.0
2011.0     0.140     97.8
2012.0     0.143    103.4
2013.0     0.144    108.8
2014.0     0.145    114.1
2015.0     0.144    119.5
2016.0     0.142    124.9
2017.0     0.138    130.6
2018.0     0.134    136.7
2019.0     0.127    143.2
2020.0     0.120    150.5
2021.0     0.111    158.9
2022.0     0.101    168.9
2023.0     0.090    181.2
2024.0     0.079    197.0
2025.0     0.070    217.3
2026.0     0.065    241.9
2027.0     0.066    268.2
2028.0     0.069    292.8
2029.0     0.074    314.4
2030.0     0.079    333.5
2031.0     0.083    350.6
2032.0     0.087      6.0
2033.0     0.092     20.0
2034.0     0.097     32.5
2035.0     0.103     43.7
2036.0     0.109     53.6
2037.0     0.115     62.5
2038.0     0.121     70.5
2039.0     0.127     77.8

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.