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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:31:40
WDS:
A1634AB
WDS ID/Discoverer
P:
9.026
Orbital period (years)
a:
0.0615
Semi-major axis (arcseconds)
i:
109.7
Inclination (degrees)
Ω:
199.4
Longitude of ascending node (degrees)
T:
2000.750
Epoch of periastron passage (year)
e:
0.006
Eccentricity
ω:
293.0
Longitude of periastron (degrees)
Start-Year:
2021.0
Year
End-Year:
2029.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
153146.99+405357.7
Epoch-2000 right ascension and declination
WDS-ID:
15318+4054
WDS designation
Discoverer Code:
A1634AB
Discover designation and components
ADS number:
9688
Aitken Double Star catalog
HD number:
138629
HD catalog number
Hipparcos number:
76041
Hipparcos catalog number
V1:
5.8
Magnitude of the primary
V2:
5.8
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2010
Date of last observation
Orbit grade:
1
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 0.062 19.5
-------------------------
2021.0 0.058 191.9
2022.0 0.035 168.0
2023.0 0.023 80.4
2024.0 0.049 35.2
2025.0 0.062 19.5
2026.0 0.049 3.9
2027.0 0.023 318.0
2028.0 0.035 229.7
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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