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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:23:18

Orbital Elements for HDS2016AB
WDS: HDS2016AB WDS ID/Discoverer
P: 18.891 Orbital period (years)
a: 0.348 Semi-major axis (arcseconds)
i: 107.9 Inclination (degrees)
Ω: 285.6 Longitude of ascending node (degrees)
T: 2003.708 Epoch of periastron passage (year)
e: 0.3 Eccentricity
ω: 72.1 Longitude of periastron (degrees)
Start-Year: 2016.0 Year
End-Year: 2034.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS2016AB
Position: 141858.28-063613.2 Epoch-2000 right ascension and declination
WDS-ID: 14190-0636 WDS designation
Discoverer Code: HDS2016AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 125354 HD catalog number
Hipparcos number: 69962 Hipparcos catalog number
V1: 9.56 Magnitude of the primary
V2: 10.60 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2022 Date of last observation
Orbit grade: 2 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for HDS2016AB



WDS 6th Orbit including measures of HDS2016AB

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


Ephemeris of HDS2016AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.260    115.9
-------------------------
2016.0     0.163    336.5
2017.0     0.213    316.8
2018.0     0.262    304.8
2019.0     0.296    296.2
2020.0     0.300    288.7
2021.0     0.260    280.3
2022.0     0.169    265.4
2023.0     0.076    205.6
2024.0     0.154    132.5
2025.0     0.260    115.9
2026.0     0.330    108.2
2027.0     0.363    102.6
2028.0     0.365     97.6
2029.0     0.342     92.2
2030.0     0.302     85.7
2031.0     0.250     76.8
2032.0     0.194     62.8
2033.0     0.149     39.0






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 4.0.


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.


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