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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 16:52:46

Orbital Elements for YSC27
WDS: YSC27 WDS ID/Discoverer
P: 16.510 Orbital period (years)
a: 0.1399 Semi-major axis (arcseconds)
i: 123.5 Inclination (degrees)
Ω: 98.6 Longitude of ascending node (degrees)
T: 2013.020 Epoch of periastron passage (year)
e: 0.222 Eccentricity
ω: 94.7 Longitude of periastron (degrees)
Start-Year: 2017.0 Year
End-Year: 2033.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for YSC27
Position: 033752.46+053828.7 Epoch-2000 right ascension and declination
WDS-ID: 03379+0538 WDS designation
Discoverer Code: YSC27 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 22556 HD catalog number
Hipparcos number: 16390 Hipparcos catalog number
V1: 8.0 Magnitude of the primary
V2: 9.5 Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for YSC27



WDS 6th Orbit including measures of YSC27

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


Ephemeris of YSC27
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.139    114.6
-------------------------
2017.0     0.135    263.2
2018.0     0.125    249.8
2019.0     0.111    233.4
2020.0     0.099    212.3
2021.0     0.094    187.2
2022.0     0.101    162.6
2023.0     0.115    142.7
2024.0     0.130    127.3
2025.0     0.139    114.6
2026.0     0.139    102.9
2027.0     0.124     89.9
2028.0     0.096     71.0
2029.0     0.064     32.6
2030.0     0.069    333.6
2031.0     0.101    300.4
2032.0     0.126    282.8






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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