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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:20:12
WDS:
STF2783
WDS ID/Discoverer
P:
1760.000
Orbital period (years)
a:
1.685
Semi-major axis (arcseconds)
i:
113.8
Inclination (degrees)
Ω:
48.3
Longitude of ascending node (degrees)
T:
1835.000
Epoch of periastron passage (year)
e:
0.22
Eccentricity
ω:
18.9
Longitude of periastron (degrees)
Start-Year:
1145.0
Year
End-Year:
2905.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
211404.90+581749.8
Epoch-2000 right ascension and declination
WDS-ID:
21141+5818
WDS designation
Discoverer Code:
STF2783
Discover designation and components
ADS number:
14784
Aitken Double Star catalog
HD number:
202519
HD catalog number
Hipparcos number:
104812
Hipparcos catalog number
V1:
7.71
Magnitude of the primary
V2:
8.07
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2011
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 0.647 347.2
-------------------------
1145.0 1.527 206.4
1155.0 1.495 205.4
1165.0 1.462 204.4
1175.0 1.429 203.3
1185.0 1.395 202.1
1195.0 1.361 200.9
1205.0 1.326 199.7
1215.0 1.291 198.3
1225.0 1.255 196.9
1235.0 1.219 195.4
1245.0 1.183 193.8
1255.0 1.147 192.2
1265.0 1.111 190.4
1275.0 1.076 188.4
1285.0 1.040 186.4
1295.0 1.005 184.2
1305.0 0.971 181.9
1315.0 0.937 179.4
1325.0 0.905 176.7
1335.0 0.874 173.8
1345.0 0.844 170.7
1355.0 0.816 167.4
1365.0 0.790 163.8
1375.0 0.767 160.0
1385.0 0.746 156.0
1395.0 0.729 151.8
1405.0 0.714 147.4
1415.0 0.704 142.9
1425.0 0.697 138.2
1435.0 0.693 133.5
1445.0 0.694 128.7
1455.0 0.699 124.0
1465.0 0.707 119.4
1475.0 0.719 114.9
1485.0 0.735 110.6
1495.0 0.753 106.4
1505.0 0.774 102.5
1515.0 0.797 98.8
1525.0 0.823 95.3
1535.0 0.850 92.0
1545.0 0.878 89.0
1555.0 0.907 86.1
1565.0 0.937 83.4
1575.0 0.967 80.9
1585.0 0.997 78.5
1595.0 1.027 76.3
1605.0 1.057 74.2
1615.0 1.086 72.2
1625.0 1.115 70.3
1635.0 1.142 68.5
1645.0 1.168 66.8
1655.0 1.193 65.1
1665.0 1.216 63.6
1675.0 1.237 62.0
1685.0 1.257 60.6
1695.0 1.274 59.1
1705.0 1.290 57.8
1715.0 1.303 56.4
1725.0 1.313 55.1
1735.0 1.322 53.7
1745.0 1.327 52.4
1755.0 1.330 51.1
1765.0 1.330 49.9
1775.0 1.328 48.6
1785.0 1.323 47.3
1795.0 1.315 45.9
1805.0 1.304 44.6
1815.0 1.290 43.3
1825.0 1.274 41.9
1835.0 1.255 40.4
1845.0 1.234 39.0
1855.0 1.210 37.4
1865.0 1.184 35.8
1875.0 1.155 34.2
1885.0 1.125 32.4
1895.0 1.092 30.5
1905.0 1.058 28.6
1915.0 1.023 26.5
1925.0 0.987 24.2
1935.0 0.949 21.7
1945.0 0.912 19.1
1955.0 0.874 16.2
1965.0 0.836 13.1
1975.0 0.800 9.7
1985.0 0.764 5.9
1995.0 0.730 1.8
2005.0 0.699 357.4
2015.0 0.671 352.5
2025.0 0.647 347.2
2035.0 0.628 341.6
2045.0 0.613 335.6
2055.0 0.605 329.5
2065.0 0.602 323.2
2075.0 0.605 316.9
2085.0 0.615 310.7
2095.0 0.630 304.8
2105.0 0.651 299.2
2115.0 0.676 294.0
2125.0 0.705 289.2
2135.0 0.738 284.8
2145.0 0.774 280.8
2155.0 0.811 277.2
2165.0 0.851 273.9
2175.0 0.892 270.9
2185.0 0.934 268.1
2195.0 0.977 265.6
2205.0 1.020 263.3
2215.0 1.063 261.2
2225.0 1.106 259.3
2235.0 1.149 257.5
2245.0 1.192 255.8
2255.0 1.234 254.3
2265.0 1.276 252.8
2275.0 1.317 251.4
2285.0 1.357 250.2
2295.0 1.396 249.0
2305.0 1.435 247.8
2315.0 1.472 246.7
2325.0 1.509 245.7
2335.0 1.544 244.7
2345.0 1.579 243.8
2355.0 1.612 242.9
2365.0 1.644 242.0
2375.0 1.675 241.2
2385.0 1.705 240.4
2395.0 1.733 239.6
2405.0 1.760 238.9
2415.0 1.786 238.1
2425.0 1.811 237.4
2435.0 1.834 236.8
2445.0 1.856 236.1
2455.0 1.877 235.4
2465.0 1.897 234.8
2475.0 1.915 234.2
2485.0 1.932 233.5
2495.0 1.947 232.9
2505.0 1.962 232.3
2515.0 1.975 231.7
2525.0 1.986 231.2
2535.0 1.997 230.6
2545.0 2.006 230.0
2555.0 2.013 229.4
2565.0 2.020 228.9
2575.0 2.025 228.3
2585.0 2.029 227.8
2595.0 2.031 227.2
2605.0 2.032 226.7
2615.0 2.032 226.1
2625.0 2.031 225.6
2635.0 2.028 225.0
2645.0 2.024 224.4
2655.0 2.019 223.9
2665.0 2.013 223.3
2675.0 2.006 222.8
2685.0 1.997 222.2
2695.0 1.987 221.6
2705.0 1.976 221.0
2715.0 1.963 220.4
2725.0 1.950 219.8
2735.0 1.935 219.2
2745.0 1.919 218.6
2755.0 1.902 218.0
2765.0 1.884 217.4
2775.0 1.865 216.7
2785.0 1.845 216.0
2795.0 1.824 215.4
2805.0 1.802 214.7
2815.0 1.778 213.9
2825.0 1.754 213.2
2835.0 1.729 212.5
2845.0 1.702 211.7
2855.0 1.675 210.9
2865.0 1.647 210.1
2875.0 1.618 209.2
2885.0 1.589 208.3
2895.0 1.558 207.4
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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