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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 17:16:20
WDS:
A494AB
WDS ID/Discoverer
P:
20.130
Orbital period (years)
a:
0.208
Semi-major axis (arcseconds)
i:
71.7
Inclination (degrees)
Ω:
96.8
Longitude of ascending node (degrees)
T:
1959.030
Epoch of periastron passage (year)
e:
0.392
Eccentricity
ω:
273.2
Longitude of periastron (degrees)
Start-Year:
2015.0
Year
End-Year:
2035.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
054253.91-064746.7
Epoch-2000 right ascension and declination
WDS-ID:
05429-0648
WDS designation
Discoverer Code:
A494AB
Discover designation and components
ADS number:
4299
Aitken Double Star catalog
HD number:
38089
HD catalog number
Hipparcos number:
26926
Hipparcos catalog number
V1:
6.51
Magnitude of the primary
V2:
7.24
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2006
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 0.168 118.0
-------------------------
2015.0 0.197 266.6
2016.0 0.194 272.4
2017.0 0.170 279.0
2018.0 0.121 289.6
2019.0 0.052 325.7
2020.0 0.072 66.8
2021.0 0.137 88.8
2022.0 0.176 97.8
2023.0 0.189 104.4
2024.0 0.184 110.8
2025.0 0.168 118.0
2026.0 0.145 127.1
2027.0 0.121 139.9
2028.0 0.100 158.6
2029.0 0.091 183.9
2030.0 0.098 209.8
2031.0 0.117 229.6
2032.0 0.142 243.1
2033.0 0.166 252.6
2034.0 0.185 259.8
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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