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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:18:39
WDS:
HDS1902
WDS ID/Discoverer
P:
26.150
Orbital period (years)
a:
0.131
Semi-major axis (arcseconds)
i:
27.7
Inclination (degrees)
Ω:
124.3
Longitude of ascending node (degrees)
T:
2008.550
Epoch of periastron passage (year)
e:
0.54
Eccentricity
ω:
309.0
Longitude of periastron (degrees)
Start-Year:
2012.0
Year
End-Year:
2038.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
133325.91+091925.5
Epoch-2000 right ascension and declination
WDS-ID:
13334+0919
WDS designation
Discoverer Code:
HDS1902
Discover designation and components
ADS number:
.
Aitken Double Star catalog
HD number:
117913
HD catalog number
Hipparcos number:
66132
Hipparcos catalog number
V1:
9.51
Magnitude of the primary
V2:
11.49
Magnitude of the secondary
Equinox:
Equinox
Date:
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 0.185 273.5
-------------------------
2012.0 0.106 181.9
2013.0 0.120 195.8
2014.0 0.132 206.9
2015.0 0.144 216.1
2016.0 0.154 224.0
2017.0 0.163 231.0
2018.0 0.171 237.3
2019.0 0.178 243.1
2020.0 0.183 248.5
2021.0 0.187 253.6
2022.0 0.189 258.6
2023.0 0.189 263.5
2024.0 0.188 268.5
2025.0 0.185 273.5
2026.0 0.180 278.8
2027.0 0.174 284.4
2028.0 0.164 290.5
2029.0 0.152 297.5
2030.0 0.138 305.9
2031.0 0.120 316.5
2032.0 0.099 331.3
2033.0 0.075 355.0
2034.0 0.057 37.1
2035.0 0.059 92.8
2036.0 0.074 133.8
2037.0 0.089 160.6
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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