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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:33:22

Orbital Elements for HDS1054AB

WDS:	HDS1054AB	WDS ID/Discoverer
P:	7.790	Orbital period (years)
a:	0.258	Semi-major axis (arcseconds)
i:	32.3	Inclination (degrees)
Ω:	16.0	Longitude of ascending node (degrees)
T:	2020.830	Epoch of periastron passage (year)
e:	0.903	Eccentricity
ω:	333.0	Longitude of periastron (degrees)
Start-Year:	2022.0	Year
End-Year:	2028.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS1054AB

Position:	072851.46-301447.4	Epoch-2000 right ascension and declination
WDS-ID:	07289-3015	WDS designation
Discoverer Code:	HDS1054AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	36349	Hipparcos catalog number
V1:	10.23	Magnitude of the primary
V2:	12.10	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2020	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for HDS1054AB

WDS 6th Orbit including measures of HDS1054AB

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

Ephemeris of HDS1054AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.476    174.1
-------------------------
2022.0     0.290    153.9
2023.0     0.403    163.1
2024.0     0.461    169.0
2025.0     0.476    174.1
2026.0     0.449    179.2
2027.0     0.371    185.7

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.