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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 17:58:00
WDS:
STF1429
WDS ID/Discoverer
P:
1280.680
Orbital period (years)
a:
2.1
Semi-major axis (arcseconds)
i:
107.7
Inclination (degrees)
Ω:
113.9
Longitude of ascending node (degrees)
T:
2170.150
Epoch of periastron passage (year)
e:
0.28
Eccentricity
ω:
0.0
Longitude of periastron (degrees)
Start-Year:
1385.0
Year
End-Year:
2665.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
102501.79+243644.1
Epoch-2000 right ascension and declination
WDS-ID:
10250+2437
WDS designation
Discoverer Code:
STF1429
Discover designation and components
ADS number:
7758
Aitken Double Star catalog
HD number:
90183
HD catalog number
Hipparcos number:
50998
Hipparcos catalog number
V1:
9.05
Magnitude of the primary
V2:
9.34
Magnitude of the secondary
Equinox:
Equinox
Date:
1981
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 0.820 151.0
-------------------------
1385.0 2.388 301.8
1395.0 2.428 301.1
1405.0 2.465 300.5
1415.0 2.499 299.9
1425.0 2.530 299.4
1435.0 2.559 298.8
1445.0 2.585 298.3
1455.0 2.608 297.7
1465.0 2.628 297.2
1475.0 2.645 296.7
1485.0 2.659 296.2
1495.0 2.671 295.7
1505.0 2.679 295.1
1515.0 2.685 294.6
1525.0 2.688 294.1
1535.0 2.688 293.6
1545.0 2.685 293.1
1555.0 2.679 292.6
1565.0 2.670 292.1
1575.0 2.659 291.6
1585.0 2.644 291.1
1595.0 2.627 290.6
1605.0 2.607 290.1
1615.0 2.584 289.5
1625.0 2.558 289.0
1635.0 2.529 288.4
1645.0 2.498 287.8
1655.0 2.463 287.3
1665.0 2.426 286.6
1675.0 2.387 286.0
1685.0 2.344 285.4
1695.0 2.299 284.7
1705.0 2.251 284.0
1715.0 2.200 283.3
1725.0 2.147 282.5
1735.0 2.091 281.7
1745.0 2.033 280.9
1755.0 1.972 279.9
1765.0 1.909 279.0
1775.0 1.843 278.0
1785.0 1.775 276.9
1795.0 1.705 275.7
1805.0 1.634 274.4
1815.0 1.560 272.9
1825.0 1.485 271.4
1835.0 1.408 269.6
1845.0 1.330 267.7
1855.0 1.251 265.5
1865.0 1.172 263.1
1875.0 1.093 260.3
1885.0 1.015 257.0
1895.0 0.938 253.2
1905.0 0.864 248.7
1915.0 0.794 243.4
1925.0 0.730 237.2
1935.0 0.675 229.8
1945.0 0.631 221.3
1955.0 0.600 211.7
1965.0 0.587 201.4
1975.0 0.591 190.9
1985.0 0.612 180.9
1995.0 0.649 171.7
2005.0 0.698 163.7
2015.0 0.756 156.8
2025.0 0.820 151.0
2035.0 0.888 146.0
2045.0 0.958 141.7
2055.0 1.028 138.1
2065.0 1.097 134.9
2075.0 1.164 132.0
2085.0 1.227 129.5
2095.0 1.286 127.2
2105.0 1.339 125.1
2115.0 1.386 123.2
2125.0 1.427 121.3
2135.0 1.460 119.6
2145.0 1.485 117.9
2155.0 1.502 116.3
2165.0 1.511 114.7
2175.0 1.511 113.1
2185.0 1.503 111.5
2195.0 1.486 109.9
2205.0 1.461 108.3
2215.0 1.428 106.5
2225.0 1.387 104.7
2235.0 1.340 102.8
2245.0 1.287 100.7
2255.0 1.229 98.4
2265.0 1.166 95.8
2275.0 1.099 93.0
2285.0 1.030 89.8
2295.0 0.960 86.2
2305.0 0.890 81.9
2315.0 0.822 77.0
2325.0 0.757 71.2
2335.0 0.699 64.3
2345.0 0.650 56.3
2355.0 0.613 47.2
2365.0 0.591 37.2
2375.0 0.587 26.7
2385.0 0.600 16.4
2395.0 0.630 6.8
2405.0 0.673 358.2
2415.0 0.729 350.8
2425.0 0.792 344.5
2435.0 0.862 339.2
2445.0 0.936 334.7
2455.0 1.012 330.9
2465.0 1.091 327.6
2475.0 1.170 324.8
2485.0 1.249 322.3
2495.0 1.328 320.1
2505.0 1.406 318.2
2515.0 1.482 316.5
2525.0 1.558 314.9
2535.0 1.631 313.5
2545.0 1.703 312.2
2555.0 1.773 311.0
2565.0 1.841 309.9
2575.0 1.907 308.8
2585.0 1.970 307.9
2595.0 2.031 307.0
2605.0 2.089 306.1
2615.0 2.145 305.3
2625.0 2.198 304.5
2635.0 2.249 303.8
2645.0 2.297 303.1
2655.0 2.343 302.4
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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