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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 16:18:46

Orbital Elements for HDS36AA,AB
WDS: HDS36AA,AB WDS ID/Discoverer
P: 28.830 Orbital period (years)
a: 0.144 Semi-major axis (arcseconds)
i: 137.5 Inclination (degrees)
Ω: 61.1 Longitude of ascending node (degrees)
T: 2000.280 Epoch of periastron passage (year)
e: 0.674 Eccentricity
ω: 38.9 Longitude of periastron (degrees)
Start-Year: 2011.0 Year
End-Year: 2039.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS36AA,AB
Position: 001623.45-223516.5 Epoch-2000 right ascension and declination
WDS-ID: 00164-2235 WDS designation
Discoverer Code: HDS36AA,AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 1205 HD catalog number
Hipparcos number: 1306 Hipparcos catalog number
V1: 8.24 Magnitude of the primary
V2: 9.96 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2022 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for HDS36AA,AB



WDS 6th Orbit including measures of HDS36AA,AB

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


Ephemeris of HDS36AA,AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.106    155.7
-------------------------
2011.0     0.219    221.0
2012.0     0.221    218.1
2013.0     0.222    215.3
2014.0     0.220    212.4
2015.0     0.217    209.4
2016.0     0.212    206.4
2017.0     0.206    203.2
2018.0     0.198    199.7
2019.0     0.189    196.0
2020.0     0.178    191.8
2021.0     0.166    187.1
2022.0     0.153    181.5
2023.0     0.138    174.9
2024.0     0.123    166.6
2025.0     0.106    155.7
2026.0     0.090    141.0
2027.0     0.075    119.9
2028.0     0.061     89.1
2029.0     0.045     38.6
2030.0     0.046    313.4
2031.0     0.080    274.0
2032.0     0.112    258.2
2033.0     0.138    249.2
2034.0     0.159    242.8
2035.0     0.177    237.8
2036.0     0.191    233.6
2037.0     0.202    230.0
2038.0     0.210    226.6






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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