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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:28:20
WDS:
HDS3084
WDS ID/Discoverer
P:
21.320
Orbital period (years)
a:
0.076
Semi-major axis (arcseconds)
i:
149.4
Inclination (degrees)
Ω:
176.2
Longitude of ascending node (degrees)
T:
1999.130
Epoch of periastron passage (year)
e:
0.461
Eccentricity
ω:
16.6
Longitude of periastron (degrees)
Start-Year:
2015.0
Year
End-Year:
2035.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
213959.74-522132.5
Epoch-2000 right ascension and declination
WDS-ID:
21400-5222
WDS designation
Discoverer Code:
HDS3084
Discover designation and components
ADS number:
.
Aitken Double Star catalog
HD number:
205877
HD catalog number
Hipparcos number:
106978
Hipparcos catalog number
V1:
6.88
Magnitude of the primary
V2:
7.30
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2021
Date of last observation
Orbit grade:
3
Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:
Flags
Click to expand/collapse ephemeris:
Year Sep[“] PA[°]
---------------------------------------------
2025.0 0.080 27.6
-------------------------
2015.0 0.082 301.8
2016.0 0.073 289.4
2017.0 0.063 273.1
2018.0 0.053 250.7
2019.0 0.046 220.2
2020.0 0.042 181.6
2021.0 0.040 136.2
2022.0 0.044 92.1
2023.0 0.055 61.0
2024.0 0.068 41.2
2025.0 0.080 27.6
2026.0 0.090 17.2
2027.0 0.098 8.8
2028.0 0.104 1.5
2029.0 0.108 354.9
2030.0 0.110 348.6
2031.0 0.110 342.5
2032.0 0.108 336.2
2033.0 0.105 329.7
2034.0 0.100 322.6
Full Disclaimer .
Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 4.0 .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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