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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:37:21
WDS:
BLA3
WDS ID/Discoverer
P:
4.040
Orbital period (years)
a:
0.148
Semi-major axis (arcseconds)
i:
119.5
Inclination (degrees)
Ω:
63.5
Longitude of ascending node (degrees)
T:
2005.720
Epoch of periastron passage (year)
e:
0.17
Eccentricity
ω:
299.9
Longitude of periastron (degrees)
Start-Year:
2023.0
Year
End-Year:
2027.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
161705.38+551609.0
Epoch-2000 right ascension and declination
WDS-ID:
16171+5516
WDS designation
Discoverer Code:
BLA3
Discover designation and components
ADS number:
.
Aitken Double Star catalog
HD number:
.
HD catalog number
Hipparcos number:
79796
Hipparcos catalog number
V1:
10.16
Magnitude of the primary
V2:
11.94
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2007
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 0.143 234.2
-------------------------
2023.0 0.105 25.3
2024.0 0.123 277.3
2025.0 0.143 234.2
2026.0 0.092 93.8
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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