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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 16:46:12

Orbital Elements for HDS408
WDS: HDS408 WDS ID/Discoverer
P: 19.414 Orbital period (years)
a: 0.1004 Semi-major axis (arcseconds)
i: 101.7 Inclination (degrees)
Ω: 171.4 Longitude of ascending node (degrees)
T: 2007.132 Epoch of periastron passage (year)
e: 0.032 Eccentricity
ω: 126.2 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 HDS408
Position: 031232.90+185637.1 Epoch-2000 right ascension and declination
WDS-ID: 03125+1857 WDS designation
Discoverer Code: HDS408 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 19895 HD catalog number
Hipparcos number: 14929 Hipparcos catalog number
V1: 9.14 Magnitude of the primary
V2: 9.45 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2012 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for HDS408



WDS 6th Orbit including measures of HDS408

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


Ephemeris of HDS408
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.022     55.2
-------------------------
2016.0     0.043    198.5
2017.0     0.067    185.5
2018.0     0.087    179.1
2019.0     0.099    174.7
2020.0     0.102    171.0
2021.0     0.095    167.2
2022.0     0.080    162.3
2023.0     0.057    154.0
2024.0     0.030    131.8
2025.0     0.022     55.2
2026.0     0.045     14.5
2027.0     0.070      2.8
2028.0     0.089    356.8
2029.0     0.098    352.5
2030.0     0.096    348.6
2031.0     0.085    344.1
2032.0     0.066    337.4
2033.0     0.041    323.6






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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