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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 17:46:18

Orbital Elements for KOH83AA,AB
WDS: KOH83AA,AB WDS ID/Discoverer
P: 20.100 Orbital period (years)
a: 0.1405 Semi-major axis (arcseconds)
i: 63.0 Inclination (degrees)
Ω: 21.6 Longitude of ascending node (degrees)
T: 2019.103 Epoch of periastron passage (year)
e: 0.7818 Eccentricity
ω: 276.3 Longitude of periastron (degrees)
Start-Year: 2015.0 Year
End-Year: 2035.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for KOH83AA,AB
Position: 091924.66-773836.4 Epoch-2000 right ascension and declination
WDS-ID: 09194-7739 WDS designation
Discoverer Code: KOH83AA,AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 81485 HD catalog number
Hipparcos number: 45734 Hipparcos catalog number
V1: 7.4 k Magnitude of the primary
V2: 7.8 k Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2019 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for KOH83AA,AB



WDS 6th Orbit including measures of KOH83AA,AB

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


Ephemeris of KOH83AA,AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.105     91.2
-------------------------
2015.0     0.121    165.3
2016.0     0.115    172.5
2017.0     0.103    180.8
2018.0     0.078    192.9
2019.0     0.017    257.2
2020.0     0.066     32.8
2021.0     0.086     49.5
2022.0     0.095     61.6
2023.0     0.100     72.1
2024.0     0.103     81.9
2025.0     0.105     91.2
2026.0     0.108    100.0
2027.0     0.110    108.4
2028.0     0.113    116.5
2029.0     0.116    124.1
2030.0     0.119    131.4
2031.0     0.121    138.4
2032.0     0.123    145.1
2033.0     0.124    151.6
2034.0     0.124    158.1






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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