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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:11:48
WDS:
STF1647
WDS ID/Discoverer
P:
1010.661
Orbital period (years)
a:
1.96209
Semi-major axis (arcseconds)
i:
66.97
Inclination (degrees)
Ω:
78.669
Longitude of ascending node (degrees)
T:
2101.122
Epoch of periastron passage (year)
e:
0.637
Eccentricity
ω:
259.437
Longitude of periastron (degrees)
Start-Year:
1520.0
Year
End-Year:
2530.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
123033.75+094256.4
Epoch-2000 right ascension and declination
WDS-ID:
12306+0943
WDS designation
Discoverer Code:
STF1647
Discover designation and components
ADS number:
8575
Aitken Double Star catalog
HD number:
108875
HD catalog number
Hipparcos number:
61035
Hipparcos catalog number
V1:
8.09
Magnitude of the primary
V2:
8.37
Magnitude of the secondary
Equinox:
Equinox
Date:
2015
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 1.236 250.6
-------------------------
1520.0 1.540 128.3
1530.0 1.516 130.0
1540.0 1.493 131.9
1550.0 1.470 133.8
1560.0 1.447 135.7
1570.0 1.424 137.7
1580.0 1.402 139.8
1590.0 1.380 141.9
1600.0 1.360 144.1
1610.0 1.340 146.4
1620.0 1.321 148.7
1630.0 1.304 151.1
1640.0 1.287 153.6
1650.0 1.272 156.1
1660.0 1.258 158.7
1670.0 1.246 161.3
1680.0 1.235 164.0
1690.0 1.226 166.8
1700.0 1.218 169.5
1710.0 1.212 172.3
1720.0 1.208 175.2
1730.0 1.206 178.0
1740.0 1.205 180.8
1750.0 1.206 183.7
1760.0 1.209 186.5
1770.0 1.213 189.4
1780.0 1.219 192.1
1790.0 1.226 194.9
1800.0 1.235 197.6
1810.0 1.244 200.3
1820.0 1.255 203.0
1830.0 1.267 205.6
1840.0 1.279 208.1
1850.0 1.292 210.6
1860.0 1.305 213.1
1870.0 1.318 215.5
1880.0 1.331 217.9
1890.0 1.343 220.2
1900.0 1.355 222.5
1910.0 1.365 224.7
1920.0 1.374 226.9
1930.0 1.382 229.1
1940.0 1.387 231.2
1950.0 1.389 233.4
1960.0 1.388 235.5
1970.0 1.383 237.7
1980.0 1.372 239.9
1990.0 1.357 242.1
2000.0 1.334 244.4
2010.0 1.302 246.7
2020.0 1.261 249.2
2030.0 1.207 252.0
2040.0 1.138 255.0
2050.0 1.051 258.4
2060.0 0.942 262.6
2070.0 0.807 268.0
2080.0 0.647 275.9
2090.0 0.469 289.5
2100.0 0.315 318.3
2110.0 0.298 7.7
2120.0 0.440 40.7
2130.0 0.624 55.8
2140.0 0.802 64.1
2150.0 0.962 69.4
2160.0 1.102 73.3
2170.0 1.224 76.3
2180.0 1.329 78.9
2190.0 1.420 81.1
2200.0 1.498 83.0
2210.0 1.566 84.8
2220.0 1.624 86.4
2230.0 1.674 87.9
2240.0 1.716 89.4
2250.0 1.752 90.7
2260.0 1.781 92.1
2270.0 1.806 93.3
2280.0 1.825 94.6
2290.0 1.841 95.8
2300.0 1.852 97.0
2310.0 1.860 98.2
2320.0 1.864 99.4
2330.0 1.866 100.6
2340.0 1.864 101.8
2350.0 1.860 103.0
2360.0 1.854 104.2
2370.0 1.846 105.4
2380.0 1.836 106.6
2390.0 1.824 107.9
2400.0 1.810 109.1
2410.0 1.795 110.4
2420.0 1.778 111.7
2430.0 1.761 113.0
2440.0 1.742 114.4
2450.0 1.722 115.7
2460.0 1.701 117.1
2470.0 1.680 118.6
2480.0 1.658 120.1
2490.0 1.635 121.6
2500.0 1.612 123.2
2510.0 1.589 124.8
2520.0 1.565 126.4
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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