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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:12:20
WDS:
BWL32
WDS ID/Discoverer
P:
17.000
Orbital period (years)
a:
0.222
Semi-major axis (arcseconds)
i:
137.4
Inclination (degrees)
Ω:
190.2
Longitude of ascending node (degrees)
T:
2020.130
Epoch of periastron passage (year)
e:
0.322
Eccentricity
ω:
81.1
Longitude of periastron (degrees)
Start-Year:
2017.0
Year
End-Year:
2033.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
123837.13-270334.9
Epoch-2000 right ascension and declination
WDS-ID:
12386-2704
WDS designation
Discoverer Code:
BWL32
Discover designation and components
ADS number:
.
Aitken Double Star catalog
HD number:
.
HD catalog number
Hipparcos number:
.
Hipparcos catalog number
V1:
8.1
Magnitude of the primary
V2:
10.4
Magnitude of the secondary
Equinox:
Equinox
Date:
2021
Date of last observation
Orbit grade:
5
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 0.236 342.5
-------------------------
2017.0 0.208 207.2
2018.0 0.188 188.8
2019.0 0.151 163.4
2020.0 0.114 119.6
2021.0 0.127 64.6
2022.0 0.172 31.0
2023.0 0.208 10.9
2024.0 0.229 355.8
2025.0 0.236 342.5
2026.0 0.235 329.4
2027.0 0.229 316.0
2028.0 0.222 301.7
2029.0 0.216 286.5
2030.0 0.214 270.7
2031.0 0.214 254.8
2032.0 0.215 239.0
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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