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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:37:46
WDS:
HDS2309
WDS ID/Discoverer
P:
29.906
Orbital period (years)
a:
0.1469
Semi-major axis (arcseconds)
i:
36.8
Inclination (degrees)
Ω:
77.5
Longitude of ascending node (degrees)
T:
2016.237
Epoch of periastron passage (year)
e:
0.614
Eccentricity
ω:
41.0
Longitude of periastron (degrees)
Start-Year:
2011.0
Year
End-Year:
2039.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
162035.00+453444.6
Epoch-2000 right ascension and declination
WDS-ID:
16206+4535
WDS designation
Discoverer Code:
HDS2309
Discover designation and components
ADS number:
.
Aitken Double Star catalog
HD number:
147544
HD catalog number
Hipparcos number:
80074
Hipparcos catalog number
V1:
7.74
Magnitude of the primary
V2:
10.68
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2010
Date of last observation
Orbit grade:
4
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 0.204 270.7
-------------------------
2011.0 0.128 343.9
2012.0 0.113 355.3
2013.0 0.099 10.0
2014.0 0.085 29.8
2015.0 0.071 57.2
2016.0 0.055 98.8
2017.0 0.051 162.4
2018.0 0.074 207.8
2019.0 0.103 229.3
2020.0 0.128 241.6
2021.0 0.150 250.1
2022.0 0.168 256.6
2023.0 0.183 261.9
2024.0 0.195 266.5
2025.0 0.204 270.7
2026.0 0.211 274.5
2027.0 0.216 278.1
2028.0 0.219 281.5
2029.0 0.221 284.9
2030.0 0.220 288.3
2031.0 0.219 291.7
2032.0 0.215 295.2
2033.0 0.210 298.8
2034.0 0.204 302.6
2035.0 0.197 306.7
2036.0 0.188 311.1
2037.0 0.178 316.1
2038.0 0.166 321.6
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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