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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:12:54
WDS:
HDS2907
WDS ID/Discoverer
P:
9.886
Orbital period (years)
a:
0.1948
Semi-major axis (arcseconds)
i:
48.8
Inclination (degrees)
Ω:
32.7
Longitude of ascending node (degrees)
T:
2017.514
Epoch of periastron passage (year)
e:
0.651
Eccentricity
ω:
194.0
Longitude of periastron (degrees)
Start-Year:
2021.0
Year
End-Year:
2029.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
202110.95-514728.6
Epoch-2000 right ascension and declination
WDS-ID:
20212-5147
WDS designation
Discoverer Code:
HDS2907
Discover designation and components
ADS number:
.
Aitken Double Star catalog
HD number:
.
HD catalog number
Hipparcos number:
100356
Hipparcos catalog number
V1:
10.86
Magnitude of the primary
V2:
11.32
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
Date of last observation
Orbit grade:
3
Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:
Flags
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Click to expand/collapse ephemeris:
Year Sep[“] PA[°]
---------------------------------------------
2025.0 0.220 65.0
-------------------------
2021.0 0.301 31.8
2022.0 0.317 38.9
2023.0 0.309 45.9
2024.0 0.276 53.9
2025.0 0.220 65.0
2026.0 0.140 87.1
2027.0 0.072 166.0
2028.0 0.079 325.9
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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