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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:38:12
WDS:
STT536AB
WDS ID/Discoverer
P:
26.000
Orbital period (years)
a:
0.35
Semi-major axis (arcseconds)
i:
89.0
Inclination (degrees)
Ω:
166.0
Longitude of ascending node (degrees)
T:
1978.100
Epoch of periastron passage (year)
e:
0.5
Eccentricity
ω:
262.0
Longitude of periastron (degrees)
Start-Year:
2012.0
Year
End-Year:
2038.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
225835.08+092124.6
Epoch-2000 right ascension and declination
WDS-ID:
22586+0921
WDS designation
Discoverer Code:
STT536AB
Discover designation and components
ADS number:
16417
Aitken Double Star catalog
HD number:
217166
HD catalog number
Hipparcos number:
113445
Hipparcos catalog number
V1:
7.0
Magnitude of the primary
V2:
7.3
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
Date of last observation
Orbit grade:
2
Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:
n
Flags
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Click to expand/collapse ephemeris:
Year Sep[“] PA[°]
---------------------------------------------
2025.0 0.265 345.0
-------------------------
2012.0 0.283 167.3
2013.0 0.251 167.7
2014.0 0.213 168.1
2015.0 0.171 168.8
2016.0 0.126 170.0
2017.0 0.078 172.6
2018.0 0.031 183.4
2019.0 0.022 321.9
2020.0 0.070 338.8
2021.0 0.117 341.9
2022.0 0.162 343.3
2023.0 0.203 344.1
2024.0 0.238 344.6
2025.0 0.265 345.0
2026.0 0.279 345.3
2027.0 0.274 345.7
2028.0 0.241 346.0
2029.0 0.165 346.7
2030.0 0.039 350.4
2031.0 0.103 164.4
2032.0 0.212 165.6
2033.0 0.280 166.0
2034.0 0.315 166.3
2035.0 0.328 166.5
2036.0 0.324 166.8
2037.0 0.308 167.0
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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