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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:21:58
WDS:
HDS3053
WDS ID/Discoverer
P:
20.630
Orbital period (years)
a:
0.16419999999999998
Semi-major axis (arcseconds)
i:
50.4
Inclination (degrees)
Ω:
153.2
Longitude of ascending node (degrees)
T:
1995.140
Epoch of periastron passage (year)
e:
0.357
Eccentricity
ω:
149.2
Longitude of periastron (degrees)
Start-Year:
2015.0
Year
End-Year:
2035.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
212723.25-070056.1
Epoch-2000 right ascension and declination
WDS-ID:
21274-0701
WDS designation
Discoverer Code:
HDS3053
Discover designation and components
ADS number:
.
Aitken Double Star catalog
HD number:
204236
HD catalog number
Hipparcos number:
105947
Hipparcos catalog number
V1:
7.97
Magnitude of the primary
V2:
9.14
Magnitude of the secondary
Equinox:
Equinox
Date:
2020
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 0.191 124.7
-------------------------
2015.0 0.081 284.9
2016.0 0.102 318.9
2017.0 0.112 342.9
2018.0 0.111 5.2
2019.0 0.106 29.1
2020.0 0.108 53.8
2021.0 0.119 75.8
2022.0 0.137 93.0
2023.0 0.156 106.1
2024.0 0.175 116.3
2025.0 0.191 124.7
2026.0 0.204 131.8
2027.0 0.212 138.3
2028.0 0.214 144.5
2029.0 0.210 150.7
2030.0 0.199 157.3
2031.0 0.182 165.0
2032.0 0.157 174.8
2033.0 0.125 189.0
2034.0 0.093 213.2
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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