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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:14:49
WDS:
BU151AB
WDS ID/Discoverer
P:
26.683
Orbital period (years)
a:
0.43701
Semi-major axis (arcseconds)
i:
61.323
Inclination (degrees)
Ω:
357.179
Longitude of ascending node (degrees)
T:
1962.812
Epoch of periastron passage (year)
e:
0.35595
Eccentricity
ω:
168.86
Longitude of periastron (degrees)
Start-Year:
2012.0
Year
End-Year:
2038.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
203732.87+143542.7
Epoch-2000 right ascension and declination
WDS-ID:
20375+1436
WDS designation
Discoverer Code:
BU151AB
Discover designation and components
ADS number:
14073
Aitken Double Star catalog
HD number:
196524
HD catalog number
Hipparcos number:
101769
Hipparcos catalog number
V1:
4.11
Magnitude of the primary
V2:
5.02
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2008
Date of last observation
Orbit grade:
1
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 0.432 332.4
-------------------------
2012.0 0.222 52.3
2013.0 0.173 83.4
2014.0 0.181 122.6
2015.0 0.229 150.9
2016.0 0.273 169.1
2017.0 0.282 183.7
2018.0 0.257 199.4
2019.0 0.218 220.0
2020.0 0.193 248.2
2021.0 0.207 278.2
2022.0 0.253 300.7
2023.0 0.313 315.4
2024.0 0.374 325.2
2025.0 0.432 332.4
2026.0 0.482 337.9
2027.0 0.524 342.4
2028.0 0.556 346.4
2029.0 0.577 350.0
2030.0 0.588 353.4
2031.0 0.587 356.7
2032.0 0.576 0.1
2033.0 0.552 3.8
2034.0 0.517 7.8
2035.0 0.470 12.5
2036.0 0.412 18.5
2037.0 0.344 26.6
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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