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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:29:35
WDS:
HDS3109
WDS ID/Discoverer
P:
16.790
Orbital period (years)
a:
0.1782
Semi-major axis (arcseconds)
i:
86.9
Inclination (degrees)
Ω:
307.5
Longitude of ascending node (degrees)
T:
2004.150
Epoch of periastron passage (year)
e:
0.246
Eccentricity
ω:
255.3
Longitude of periastron (degrees)
Start-Year:
2017.0
Year
End-Year:
2033.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
215023.73-581817.4
Epoch-2000 right ascension and declination
WDS-ID:
21504-5818
WDS designation
Discoverer Code:
HDS3109
Discover designation and components
ADS number:
.
Aitken Double Star catalog
HD number:
207377
HD catalog number
Hipparcos number:
107806
Hipparcos catalog number
V1:
8.56
Magnitude of the primary
V2:
9.07
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 0.184 308.0
-------------------------
2017.0 0.148 125.2
2018.0 0.162 126.6
2019.0 0.149 128.1
2020.0 0.104 130.3
2021.0 0.030 141.2
2022.0 0.055 300.2
2023.0 0.124 305.2
2024.0 0.167 306.9
2025.0 0.184 308.0
2026.0 0.178 309.1
2027.0 0.155 310.4
2028.0 0.119 312.3
2029.0 0.074 316.3
2030.0 0.025 335.6
2031.0 0.032 106.4
2032.0 0.081 120.1
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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