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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:35:50
WDS:
MCA42CE
WDS ID/Discoverer
P:
19.000
Orbital period (years)
a:
0.111
Semi-major axis (arcseconds)
i:
49.5
Inclination (degrees)
Ω:
289.2
Longitude of ascending node (degrees)
T:
2006.285
Epoch of periastron passage (year)
e:
0.638
Eccentricity
ω:
262.1
Longitude of periastron (degrees)
Start-Year:
2016.0
Year
End-Year:
2034.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
160526.55-194806.6
Epoch-2000 right ascension and declination
WDS-ID:
16054-1948
WDS designation
Discoverer Code:
MCA42CE
Discover designation and components
ADS number:
9913
Aitken Double Star catalog
HD number:
144218
HD catalog number
Hipparcos number:
78821
Hipparcos catalog number
V1:
4.52
Magnitude of the primary
V2:
6.6
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2018
Date of last observation
Orbit grade:
3
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 0.034 148.5
-------------------------
2016.0 0.119 8.9
2017.0 0.117 17.3
2018.0 0.114 26.1
2019.0 0.111 35.3
2020.0 0.107 45.2
2021.0 0.102 55.8
2022.0 0.096 67.7
2023.0 0.086 81.7
2024.0 0.068 101.1
2025.0 0.034 148.5
2026.0 0.048 267.2
2027.0 0.081 295.8
2028.0 0.100 309.9
2029.0 0.111 320.2
2030.0 0.118 329.1
2031.0 0.121 337.3
2032.0 0.122 345.1
2033.0 0.122 352.9
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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