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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 17:02:10
WDS:
CHR18AA,AB
WDS ID/Discoverer
P:
18.029
Orbital period (years)
a:
0.2401
Semi-major axis (arcseconds)
i:
69.923
Inclination (degrees)
Ω:
146.734
Longitude of ascending node (degrees)
T:
2010.177
Epoch of periastron passage (year)
e:
0.0715
Eccentricity
ω:
205.7
Longitude of periastron (degrees)
Start-Year:
2016.0
Year
End-Year:
2034.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
043539.23+100939.3
Epoch-2000 right ascension and declination
WDS-ID:
04357+1010
WDS designation
Discoverer Code:
CHR18AA,AB
Discover designation and components
ADS number:
3317
Aitken Double Star catalog
HD number:
29140
HD catalog number
Hipparcos number:
21402
Hipparcos catalog number
V1:
4.44
Magnitude of the primary
V2:
6.61
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2007
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 0.172 307.2
-------------------------
2016.0 0.218 135.1
2017.0 0.248 142.3
2018.0 0.255 148.4
2019.0 0.240 154.8
2020.0 0.205 162.7
2021.0 0.156 174.9
2022.0 0.105 199.4
2023.0 0.086 248.2
2024.0 0.122 288.5
2025.0 0.172 307.2
2026.0 0.210 317.9
2027.0 0.225 326.0
2028.0 0.210 334.2
2029.0 0.170 345.1
2030.0 0.115 5.3
2031.0 0.080 52.7
2032.0 0.110 102.7
2033.0 0.167 124.1
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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