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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 16:56:53
WDS:
A2801
WDS ID/Discoverer
P:
20.633
Orbital period (years)
a:
0.16432
Semi-major axis (arcseconds)
i:
67.8
Inclination (degrees)
Ω:
154.1
Longitude of ascending node (degrees)
T:
1931.498
Epoch of periastron passage (year)
e:
0.8349
Eccentricity
ω:
67.88
Longitude of periastron (degrees)
Start-Year:
2015.0
Year
End-Year:
2035.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
041044.48-045228.2
Epoch-2000 right ascension and declination
WDS-ID:
04107-0452
WDS designation
Discoverer Code:
A2801
Discover designation and components
ADS number:
3041
Aitken Double Star catalog
HD number:
26441
HD catalog number
Hipparcos number:
19508
Hipparcos catalog number
V1:
8.3
Magnitude of the primary
V2:
8.3
Magnitude of the secondary
Equinox:
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 0.149 19.8
-------------------------
2015.0 0.089 338.0
2016.0 0.129 346.2
2017.0 0.151 351.2
2018.0 0.164 355.1
2019.0 0.171 358.6
2020.0 0.174 1.9
2021.0 0.174 5.1
2022.0 0.171 8.4
2023.0 0.165 11.9
2024.0 0.158 15.6
2025.0 0.149 19.8
2026.0 0.139 24.5
2027.0 0.127 30.1
2028.0 0.115 36.8
2029.0 0.103 45.1
2030.0 0.090 55.6
2031.0 0.079 69.4
2032.0 0.071 87.0
2033.0 0.064 108.7
2034.0 0.054 135.6
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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