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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:11:23

Orbital Elements for RST4499BC
WDS: RST4499BC WDS ID/Discoverer
P: 28.200 Orbital period (years)
a: 0.221 Semi-major axis (arcseconds)
i: 156.1 Inclination (degrees)
Ω: 162.8 Longitude of ascending node (degrees)
T: 1990.200 Epoch of periastron passage (year)
e: 0.166 Eccentricity
ω: 77.3 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 RST4499BC
Position: 122816.80-614558.5 Epoch-2000 right ascension and declination
WDS-ID: 12283-6146 WDS designation
Discoverer Code: RST4499BC Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 108500 HD catalog number
Hipparcos number: 60845 Hipparcos catalog number
V1: 8.8 Magnitude of the primary
V2: 8.8 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2018 Date of last observation
Orbit grade: 2 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for RST4499BC



WDS 6th Orbit including measures of RST4499BC

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


Ephemeris of RST4499BC
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.223    342.3
-------------------------
2011.0     0.223    195.9
2012.0     0.219    184.4
2013.0     0.213    172.4
2014.0     0.205    159.5
2015.0     0.196    145.6
2016.0     0.186    130.2
2017.0     0.177    113.1
2018.0     0.171     94.4
2019.0     0.169     74.8
2020.0     0.173     55.5
2021.0     0.181     37.4
2022.0     0.192     21.3
2023.0     0.204      6.9
2024.0     0.214    354.0
2025.0     0.223    342.3
2026.0     0.230    331.4
2027.0     0.235    321.0
2028.0     0.238    311.0
2029.0     0.239    301.2
2030.0     0.240    291.4
2031.0     0.239    281.6
2032.0     0.237    271.6
2033.0     0.236    261.6
2034.0     0.234    251.4
2035.0     0.233    241.1
2036.0     0.231    230.7
2037.0     0.229    220.0
2038.0     0.227    209.2






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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