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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:07:59

Orbital Elements for HDS1676

WDS:	HDS1676	WDS ID/Discoverer
P:	15.200	Orbital period (years)
a:	0.132	Semi-major axis (arcseconds)
i:	38.1	Inclination (degrees)
Ω:	326.3	Longitude of ascending node (degrees)
T:	2001.150	Epoch of periastron passage (year)
e:	0.733	Eccentricity
ω:	315.5	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 HDS1676

Position:	115227.18-140739.2	Epoch-2000 right ascension and declination
WDS-ID:	11525-1408	WDS designation
Discoverer Code:	HDS1676	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	103130	HD catalog number
Hipparcos number:	57894	Hipparcos catalog number
V1:	8.08	Magnitude of the primary
V2:	9.33	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2017	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS1676

WDS 6th Orbit including measures of HDS1676

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

Ephemeris of HDS1676

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.208    114.0
-------------------------
2018.0     0.091     50.9
2019.0     0.123     70.4
2020.0     0.150     82.3
2021.0     0.171     90.8
2022.0     0.188     97.6
2023.0     0.200    103.5
2024.0     0.206    108.8
2025.0     0.208    114.0
2026.0     0.204    119.1
2027.0     0.194    124.7
2028.0     0.177    131.0
2029.0     0.151    139.2
2030.0     0.111    152.2
2031.0     0.051    189.2

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.