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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:45:07

Orbital Elements for HDS385

WDS:	HDS385	WDS ID/Discoverer
P:	14.893	Orbital period (years)
a:	0.1169	Semi-major axis (arcseconds)
i:	54.3	Inclination (degrees)
Ω:	161.4	Longitude of ascending node (degrees)
T:	2013.111	Epoch of periastron passage (year)
e:	0.419	Eccentricity
ω:	195.5	Longitude of periastron (degrees)
Start-Year:	2018.0	Year
End-Year:	2032.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS385

Position:	030122.67+061457.6	Epoch-2000 right ascension and declination
WDS-ID:	03014+0615	WDS designation
Discoverer Code:	HDS385	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	18774	HD catalog number
Hipparcos number:	14075	Hipparcos catalog number
V1:	9.52	Magnitude of the primary
V2:	9.97	Magnitude of the secondary
Equinox:		Equinox
Date:	2017	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for HDS385

WDS 6th Orbit including measures of HDS385

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

Ephemeris of HDS385

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.076    226.7
-------------------------
2018.0     0.149    153.1
2019.0     0.161    160.3
2020.0     0.164    166.9
2021.0     0.159    173.6
2022.0     0.146    181.1
2023.0     0.127    190.5
2024.0     0.102    204.0
2025.0     0.076    226.7
2026.0     0.060    266.8
2027.0     0.066    312.7
2028.0     0.066    350.4
2029.0     0.049     44.9
2030.0     0.066    105.6
2031.0     0.101    131.9

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.