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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:19:26

Orbital Elements for HDS3013AA,AB
WDS: HDS3013AA,AB WDS ID/Discoverer
P: 25.040 Orbital period (years)
a: 0.31789999999999996 Semi-major axis (arcseconds)
i: 132.8 Inclination (degrees)
Ω: 154.7 Longitude of ascending node (degrees)
T: 1994.310 Epoch of periastron passage (year)
e: 0.549 Eccentricity
ω: 99.2 Longitude of periastron (degrees)
Start-Year: 2013.0 Year
End-Year: 2037.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS3013AA,AB
Position: 210845.51-042536.7 Epoch-2000 right ascension and declination
WDS-ID: 21088-0426 WDS designation
Discoverer Code: HDS3013AA,AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 104383 Hipparcos catalog number
V1: 9.64 Magnitude of the primary
V2: 12.14 Magnitude of the secondary
Equinox: Equinox
Date: 2020 Date of last observation
Orbit grade: 2 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for HDS3013AA,AB



WDS 6th Orbit including measures of HDS3013AA,AB

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


Ephemeris of HDS3013AA,AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.297    287.0
-------------------------
2013.0     0.343    189.3
2014.0     0.331    182.0
2015.0     0.311    174.0
2016.0     0.280    164.6
2017.0     0.234    152.2
2018.0     0.168    131.6
2019.0     0.102     80.9
2020.0     0.132      8.2
2021.0     0.198    337.2
2022.0     0.241    320.2
2023.0     0.268    307.5
2024.0     0.285    296.7
2025.0     0.297    287.0
2026.0     0.305    277.9
2027.0     0.312    269.2
2028.0     0.318    260.9
2029.0     0.323    252.8
2030.0     0.329    245.1
2031.0     0.335    237.6
2032.0     0.340    230.4
2033.0     0.345    223.3
2034.0     0.349    216.5
2035.0     0.352    209.8
2036.0     0.352    203.1






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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