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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 16:29:40
WDS:
DAW31AB
WDS ID/Discoverer
P:
4.559
Orbital period (years)
a:
0.1669
Semi-major axis (arcseconds)
i:
11.9
Inclination (degrees)
Ω:
168.6
Longitude of ascending node (degrees)
T:
2010.127
Epoch of periastron passage (year)
e:
0.3142
Eccentricity
ω:
298.9
Longitude of periastron (degrees)
Start-Year:
2023.0
Year
End-Year:
2027.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
013500.96-295438.0
Epoch-2000 right ascension and declination
WDS-ID:
01350-2955
WDS designation
Discoverer Code:
DAW31AB
Discover designation and components
ADS number:
.
Aitken Double Star catalog
HD number:
9770
HD catalog number
Hipparcos number:
7372
Hipparcos catalog number
V1:
7.51
Magnitude of the primary
V2:
8.94
Magnitude of the secondary
Equinox:
Equinox
Date:
Date of last observation
Orbit grade:
1
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 0.182 234.3
-------------------------
2023.0 0.159 7.2
2024.0 0.118 138.4
2025.0 0.182 234.3
2026.0 0.215 284.3
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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