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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:39:38
WDS:
STF2979
WDS ID/Discoverer
P:
2470.561
Orbital period (years)
a:
5.58854
Semi-major axis (arcseconds)
i:
77.441
Inclination (degrees)
Ω:
64.682
Longitude of ascending node (degrees)
T:
2206.224
Epoch of periastron passage (year)
e:
0.87206
Eccentricity
ω:
270.253
Longitude of periastron (degrees)
Start-Year:
790.0
Year
End-Year:
3260.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
230747.88+394746.8
Epoch-2000 right ascension and declination
WDS-ID:
23078+3947
WDS designation
Discoverer Code:
STF2979
Discover designation and components
ADS number:
16527
Aitken Double Star catalog
HD number:
218453
HD catalog number
Hipparcos number:
114214
Hipparcos catalog number
V1:
7.92
Magnitude of the primary
V2:
9.99
Magnitude of the secondary
Equinox:
Equinox
Date:
2015
Date of last observation
Orbit grade:
5
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 2.751 229.2
-------------------------
790.0 2.324 139.1
800.0 2.318 140.0
810.0 2.313 140.9
820.0 2.308 141.8
830.0 2.303 142.7
840.0 2.298 143.7
850.0 2.294 144.6
860.0 2.291 145.5
870.0 2.288 146.4
880.0 2.285 147.4
890.0 2.282 148.3
900.0 2.280 149.2
910.0 2.278 150.1
920.0 2.277 151.1
930.0 2.276 152.0
940.0 2.275 152.9
950.0 2.275 153.9
960.0 2.275 154.8
970.0 2.275 155.8
980.0 2.276 156.7
990.0 2.277 157.6
1000.0 2.279 158.6
1010.0 2.281 159.5
1020.0 2.283 160.4
1030.0 2.286 161.3
1040.0 2.289 162.3
1050.0 2.293 163.2
1060.0 2.297 164.1
1070.0 2.301 165.0
1080.0 2.306 165.9
1090.0 2.311 166.9
1100.0 2.316 167.8
1110.0 2.321 168.7
1120.0 2.327 169.6
1130.0 2.334 170.4
1140.0 2.340 171.3
1150.0 2.347 172.2
1160.0 2.354 173.1
1170.0 2.362 174.0
1180.0 2.370 174.8
1190.0 2.378 175.7
1200.0 2.386 176.5
1210.0 2.395 177.4
1220.0 2.404 178.2
1230.0 2.413 179.1
1240.0 2.423 179.9
1250.0 2.432 180.7
1260.0 2.442 181.5
1270.0 2.453 182.3
1280.0 2.463 183.1
1290.0 2.474 183.9
1300.0 2.484 184.7
1310.0 2.495 185.5
1320.0 2.506 186.3
1330.0 2.518 187.0
1340.0 2.529 187.8
1350.0 2.541 188.6
1360.0 2.552 189.3
1370.0 2.564 190.0
1380.0 2.576 190.8
1390.0 2.588 191.5
1400.0 2.600 192.2
1410.0 2.612 192.9
1420.0 2.625 193.6
1430.0 2.637 194.3
1440.0 2.649 195.0
1450.0 2.662 195.7
1460.0 2.674 196.4
1470.0 2.687 197.1
1480.0 2.699 197.7
1490.0 2.711 198.4
1500.0 2.724 199.1
1510.0 2.736 199.7
1520.0 2.748 200.4
1530.0 2.760 201.0
1540.0 2.772 201.6
1550.0 2.784 202.3
1560.0 2.796 202.9
1570.0 2.808 203.5
1580.0 2.820 204.1
1590.0 2.831 204.7
1600.0 2.842 205.3
1610.0 2.853 205.9
1620.0 2.864 206.5
1630.0 2.875 207.1
1640.0 2.885 207.7
1650.0 2.895 208.3
1660.0 2.905 208.8
1670.0 2.914 209.4
1680.0 2.923 210.0
1690.0 2.932 210.5
1700.0 2.940 211.1
1710.0 2.948 211.7
1720.0 2.956 212.2
1730.0 2.963 212.8
1740.0 2.970 213.3
1750.0 2.976 213.9
1760.0 2.982 214.4
1770.0 2.987 215.0
1780.0 2.991 215.5
1790.0 2.995 216.0
1800.0 2.998 216.6
1810.0 3.000 217.1
1820.0 3.002 217.7
1830.0 3.003 218.2
1840.0 3.003 218.7
1850.0 3.002 219.3
1860.0 3.000 219.8
1870.0 2.997 220.3
1880.0 2.993 220.9
1890.0 2.988 221.4
1900.0 2.981 222.0
1910.0 2.974 222.5
1920.0 2.965 223.1
1930.0 2.954 223.6
1940.0 2.942 224.2
1950.0 2.928 224.7
1960.0 2.912 225.3
1970.0 2.894 225.9
1980.0 2.874 226.5
1990.0 2.852 227.1
2000.0 2.827 227.7
2010.0 2.799 228.3
2020.0 2.768 228.9
2030.0 2.733 229.5
2040.0 2.695 230.2
2050.0 2.653 230.9
2060.0 2.606 231.6
2070.0 2.554 232.3
2080.0 2.495 233.1
2090.0 2.430 233.9
2100.0 2.356 234.7
2110.0 2.273 235.6
2120.0 2.179 236.6
2130.0 2.071 237.6
2140.0 1.946 238.8
2150.0 1.800 240.2
2160.0 1.625 241.9
2170.0 1.411 244.0
2180.0 1.143 247.0
2190.0 0.797 252.2
2200.0 0.360 268.7
2210.0 0.257 28.4
2220.0 0.702 55.2
2230.0 1.069 61.6
2240.0 1.351 64.9
2250.0 1.574 67.1
2260.0 1.755 68.9
2270.0 1.906 70.3
2280.0 2.033 71.6
2290.0 2.143 72.7
2300.0 2.238 73.7
2310.0 2.322 74.6
2320.0 2.396 75.5
2330.0 2.461 76.3
2340.0 2.520 77.1
2350.0 2.572 77.8
2360.0 2.618 78.6
2370.0 2.660 79.3
2380.0 2.698 79.9
2390.0 2.732 80.6
2400.0 2.762 81.2
2410.0 2.790 81.9
2420.0 2.814 82.5
2430.0 2.836 83.1
2440.0 2.855 83.7
2450.0 2.873 84.3
2460.0 2.888 84.9
2470.0 2.901 85.4
2480.0 2.913 86.0
2490.0 2.923 86.6
2500.0 2.932 87.1
2510.0 2.939 87.7
2520.0 2.945 88.3
2530.0 2.949 88.8
2540.0 2.953 89.4
2550.0 2.955 89.9
2560.0 2.957 90.5
2570.0 2.957 91.0
2580.0 2.957 91.6
2590.0 2.955 92.1
2600.0 2.953 92.7
2610.0 2.951 93.3
2620.0 2.947 93.8
2630.0 2.943 94.4
2640.0 2.938 94.9
2650.0 2.933 95.5
2660.0 2.927 96.1
2670.0 2.921 96.6
2680.0 2.914 97.2
2690.0 2.906 97.8
2700.0 2.898 98.3
2710.0 2.890 98.9
2720.0 2.882 99.5
2730.0 2.873 100.1
2740.0 2.864 100.7
2750.0 2.854 101.3
2760.0 2.844 101.9
2770.0 2.834 102.5
2780.0 2.824 103.1
2790.0 2.813 103.7
2800.0 2.802 104.3
2810.0 2.791 104.9
2820.0 2.780 105.5
2830.0 2.769 106.2
2840.0 2.757 106.8
2850.0 2.746 107.4
2860.0 2.734 108.1
2870.0 2.722 108.7
2880.0 2.710 109.4
2890.0 2.699 110.1
2900.0 2.687 110.7
2910.0 2.675 111.4
2920.0 2.662 112.1
2930.0 2.650 112.8
2940.0 2.638 113.5
2950.0 2.626 114.2
2960.0 2.614 114.9
2970.0 2.602 115.6
2980.0 2.591 116.3
2990.0 2.579 117.0
3000.0 2.567 117.7
3010.0 2.555 118.5
3020.0 2.544 119.2
3030.0 2.532 120.0
3040.0 2.521 120.7
3050.0 2.510 121.5
3060.0 2.499 122.3
3070.0 2.488 123.1
3080.0 2.477 123.8
3090.0 2.467 124.6
3100.0 2.456 125.4
3110.0 2.446 126.2
3120.0 2.436 127.1
3130.0 2.427 127.9
3140.0 2.417 128.7
3150.0 2.408 129.5
3160.0 2.399 130.4
3170.0 2.390 131.2
3180.0 2.382 132.1
3190.0 2.373 132.9
3200.0 2.365 133.8
3210.0 2.358 134.7
3220.0 2.350 135.5
3230.0 2.343 136.4
3240.0 2.337 137.3
3250.0 2.330 138.2
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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