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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:19:07
WDS:
STF2758A
WDS ID/Discoverer
P:
4.900
Orbital period (years)
a:
0.14
Semi-major axis (arcseconds)
i:
134.0
Inclination (degrees)
Ω:
94.0
Longitude of ascending node (degrees)
T:
1953.200
Epoch of periastron passage (year)
e:
0.5
Eccentricity
ω:
295.0
Longitude of periastron (degrees)
Start-Year:
2023.0
Year
End-Year:
2027.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
210653.94+384457.8
Epoch-2000 right ascension and declination
WDS-ID:
21069+3845
WDS designation
Discoverer Code:
STF2758A
Discover designation and components
ADS number:
14636
Aitken Double Star catalog
HD number:
201091
HD catalog number
Hipparcos number:
104214
Hipparcos catalog number
V1:
5.20v
Magnitude of the primary
V2:
.
Magnitude of the secondary
Equinox:
Equinox
Date:
1958
Date of last observation
Orbit grade:
9
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 0.171 306.7
-------------------------
2023.0 0.122 26.3
2024.0 0.152 339.1
2025.0 0.171 306.7
2026.0 0.127 270.9
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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