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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:26:18

Orbital Elements for HDS148

WDS:	HDS148	WDS ID/Discoverer
P:	15.510	Orbital period (years)
a:	0.074	Semi-major axis (arcseconds)
i:	65.9	Inclination (degrees)
Ω:	10.2	Longitude of ascending node (degrees)
T:	2019.120	Epoch of periastron passage (year)
e:	0.98	Eccentricity
ω:	213.4	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 HDS148

Position:	010744.93-155658.5	Epoch-2000 right ascension and declination
WDS-ID:	01077-1557	WDS designation
Discoverer Code:	HDS148	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	6708	HD catalog number
Hipparcos number:	5295	Hipparcos catalog number
V1:	9.88	Magnitude of the primary
V2:	10.51	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2021	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS148

WDS 6th Orbit including measures of HDS148

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

Ephemeris of HDS148

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.124     24.1
-------------------------
2018.0     0.047     33.6
2019.0     0.008     56.7
2020.0     0.052     17.9
2021.0     0.080     20.3
2022.0     0.098     21.6
2023.0     0.110     22.6
2024.0     0.119     23.4
2025.0     0.124     24.1
2026.0     0.127     24.7
2027.0     0.126     25.3
2028.0     0.123     26.0
2029.0     0.118     26.7
2030.0     0.109     27.5
2031.0     0.097     28.5

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.