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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:12:51
WDS:
BLA7AA,AB
WDS ID/Discoverer
P:
3.762
Orbital period (years)
a:
0.0487
Semi-major axis (arcseconds)
i:
75.1
Inclination (degrees)
Ω:
43.6
Longitude of ascending node (degrees)
T:
2015.640
Epoch of periastron passage (year)
e:
0.452
Eccentricity
ω:
124.2
Longitude of periastron (degrees)
Start-Year:
2024.0
Year
End-Year:
2026.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
202100.67-144653.0
Epoch-2000 right ascension and declination
WDS-ID:
20210-1447
WDS designation
Discoverer Code:
BLA7AA,AB
Discover designation and components
ADS number:
13717
Aitken Double Star catalog
HD number:
193495
HD catalog number
Hipparcos number:
100345
Hipparcos catalog number
V1:
3.1
Magnitude of the primary
V2:
4.9
Magnitude of the secondary
Equinox:
Equinox
Date:
Date of last observation
Orbit grade:
2
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 0.041 21.5
-------------------------
2024.0 0.020 265.0
2025.0 0.041 21.5
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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