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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:11:23
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
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
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
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
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 .
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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