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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 16:34:50
WDS:
EGG2AA,AB
WDS ID/Discoverer
P:
29.710
Orbital period (years)
a:
0.136
Semi-major axis (arcseconds)
i:
7.0
Inclination (degrees)
Ω:
166.0
Longitude of ascending node (degrees)
T:
2013.020
Epoch of periastron passage (year)
e:
0.813
Eccentricity
ω:
164.0
Longitude of periastron (degrees)
Start-Year:
2011.0
Year
End-Year:
2039.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
021836.27+401643.7
Epoch-2000 right ascension and declination
WDS-ID:
02186+4017
WDS designation
Discoverer Code:
EGG2AA,AB
Discover designation and components
ADS number:
1763
Aitken Double Star catalog
HD number:
14189
HD catalog number
Hipparcos number:
10772
Hipparcos catalog number
V1:
7.9
Magnitude of the primary
V2:
7.9
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2014
Date of last observation
Orbit grade:
3
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 0.240 143.9
-------------------------
2011.0 0.093 201.1
2012.0 0.058 224.4
2013.0 0.025 326.1
2014.0 0.057 73.8
2015.0 0.092 98.2
2016.0 0.120 109.8
2017.0 0.144 117.2
2018.0 0.165 122.7
2019.0 0.182 127.0
2020.0 0.196 130.6
2021.0 0.209 133.7
2022.0 0.219 136.6
2023.0 0.228 139.2
2024.0 0.235 141.6
2025.0 0.240 143.9
2026.0 0.244 146.1
2027.0 0.246 148.2
2028.0 0.246 150.4
2029.0 0.246 152.5
2030.0 0.243 154.7
2031.0 0.239 156.9
2032.0 0.234 159.2
2033.0 0.226 161.7
2034.0 0.217 164.3
2035.0 0.206 167.2
2036.0 0.193 170.4
2037.0 0.178 174.2
2038.0 0.160 178.7
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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