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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:40:00
WDS:
TOK51AA,AB
WDS ID/Discoverer
P:
25.000
Orbital period (years)
a:
0.262
Semi-major axis (arcseconds)
i:
95.8
Inclination (degrees)
Ω:
59.9
Longitude of ascending node (degrees)
T:
2027.730
Epoch of periastron passage (year)
e:
0.328
Eccentricity
ω:
206.9
Longitude of periastron (degrees)
Start-Year:
2013.0
Year
End-Year:
2037.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
163831.07-572811.4
Epoch-2000 right ascension and declination
WDS-ID:
16385-5728
WDS designation
Discoverer Code:
TOK51AA,AB
Discover designation and components
ADS number:
.
Aitken Double Star catalog
HD number:
149499
HD catalog number
Hipparcos number:
81478
Hipparcos catalog number
V1:
8.7
Magnitude of the primary
V2:
12.7
Magnitude of the secondary
Equinox:
Equinox
Date:
2018
Date of last observation
Orbit grade:
4
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 0.151 245.7
-------------------------
2013.0 0.336 58.9
2014.0 0.330 58.1
2015.0 0.315 57.2
2016.0 0.292 56.2
2017.0 0.261 54.9
2018.0 0.223 53.3
2019.0 0.178 51.0
2020.0 0.129 46.9
2021.0 0.076 37.2
2022.0 0.030 351.5
2023.0 0.054 268.0
2024.0 0.106 251.5
2025.0 0.151 245.7
2026.0 0.178 242.3
2027.0 0.178 239.4
2028.0 0.145 235.8
2029.0 0.083 228.3
2030.0 0.021 160.9
2031.0 0.078 75.9
2032.0 0.148 67.7
2033.0 0.208 64.7
2034.0 0.256 62.9
2035.0 0.293 61.7
2036.0 0.318 60.7
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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