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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:36:56

Orbital Elements for HDO301
WDS: HDO301 WDS ID/Discoverer
P: 26.460 Orbital period (years)
a: 0.184 Semi-major axis (arcseconds)
i: 162.9 Inclination (degrees)
Ω: 194.6 Longitude of ascending node (degrees)
T: 2015.070 Epoch of periastron passage (year)
e: 0.516 Eccentricity
ω: 255.8 Longitude of periastron (degrees)
Start-Year: 2012.0 Year
End-Year: 2038.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDO301
Position: 224959.25-324819.4 Epoch-2000 right ascension and declination
WDS-ID: 22500-3248 WDS designation
Discoverer Code: HDO301 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 216042 HD catalog number
Hipparcos number: 112746 Hipparcos catalog number
V1: 7.23 Magnitude of the primary
V2: 7.12 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2014 Date of last observation
Orbit grade: 2 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for HDO301



WDS 6th Orbit including measures of HDO301

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


Ephemeris of HDO301
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.258    137.2
-------------------------
2012.0     0.149     39.4
2013.0     0.124     19.2
2014.0     0.100    348.7
2015.0     0.086    303.0
2016.0     0.095    254.4
2017.0     0.120    220.8
2018.0     0.147    199.4
2019.0     0.172    184.6
2020.0     0.193    173.3
2021.0     0.212    164.1
2022.0     0.227    156.3
2023.0     0.240    149.4
2024.0     0.250    143.1
2025.0     0.258    137.2
2026.0     0.263    131.7
2027.0     0.266    126.3
2028.0     0.267    121.0
2029.0     0.266    115.7
2030.0     0.264    110.4
2031.0     0.258    104.8
2032.0     0.251     99.0
2033.0     0.242     92.8
2034.0     0.231     86.1
2035.0     0.217     78.6
2036.0     0.201     69.9
2037.0     0.182     59.6






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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