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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:32:06
WDS:
TOK49AA,AB
WDS ID/Discoverer
P:
26.270
Orbital period (years)
a:
0.1814
Semi-major axis (arcseconds)
i:
56.0
Inclination (degrees)
Ω:
344.1
Longitude of ascending node (degrees)
T:
2006.280
Epoch of periastron passage (year)
e:
0.342
Eccentricity
ω:
131.9
Longitude of periastron (degrees)
Start-Year:
2012.0
Year
End-Year:
2038.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
153447.96-280750.8
Epoch-2000 right ascension and declination
WDS-ID:
15348-2808
WDS designation
Discoverer Code:
TOK49AA,AB
Discover designation and components
ADS number:
.
Aitken Double Star catalog
HD number:
138722
HD catalog number
Hipparcos number:
76275
Hipparcos catalog number
V1:
9.1
Magnitude of the primary
V2:
11.4
Magnitude of the secondary
Equinox:
2000
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 0.212 341.7
-------------------------
2012.0 0.120 219.7
2013.0 0.117 236.7
2014.0 0.120 253.7
2015.0 0.128 269.1
2016.0 0.141 282.3
2017.0 0.156 293.1
2018.0 0.171 302.0
2019.0 0.186 309.4
2020.0 0.199 315.8
2021.0 0.209 321.5
2022.0 0.217 326.7
2023.0 0.220 331.7
2024.0 0.219 336.6
2025.0 0.212 341.7
2026.0 0.200 347.2
2027.0 0.182 353.7
2028.0 0.157 1.9
2029.0 0.126 13.8
2030.0 0.094 33.8
2031.0 0.072 70.6
2032.0 0.080 114.8
2033.0 0.106 142.9
2034.0 0.127 160.3
2035.0 0.136 173.8
2036.0 0.135 186.6
2037.0 0.129 200.2
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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