Content-Type: text/html; charset=UTF-8
Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:55:47
WDS:
BU1091
WDS ID/Discoverer
P:
1297.000
Orbital period (years)
a:
1.175
Semi-major axis (arcseconds)
i:
138.5
Inclination (degrees)
Ω:
172.9
Longitude of ascending node (degrees)
T:
1933.000
Epoch of periastron passage (year)
e:
0.896
Eccentricity
ω:
77.8
Longitude of periastron (degrees)
Start-Year:
1377.0
Year
End-Year:
2673.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
181236.71+383551.0
Epoch-2000 right ascension and declination
WDS-ID:
18126+3836
WDS designation
Discoverer Code:
BU1091
Discover designation and components
ADS number:
11170
Aitken Double Star catalog
HD number:
.
HD catalog number
Hipparcos number:
89237
Hipparcos catalog number
V1:
8.66
Magnitude of the primary
V2:
9.24
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2010
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 0.804 317.1
-------------------------
1377.0 1.662 274.8
1387.0 1.656 274.4
1397.0 1.649 273.9
1407.0 1.642 273.4
1417.0 1.634 273.0
1427.0 1.626 272.5
1437.0 1.617 272.0
1447.0 1.608 271.5
1457.0 1.598 271.0
1467.0 1.587 270.5
1477.0 1.577 270.0
1487.0 1.565 269.5
1497.0 1.553 269.0
1507.0 1.541 268.4
1517.0 1.528 267.9
1527.0 1.515 267.3
1537.0 1.500 266.8
1547.0 1.486 266.2
1557.0 1.471 265.6
1567.0 1.455 265.0
1577.0 1.438 264.4
1587.0 1.421 263.8
1597.0 1.404 263.2
1607.0 1.386 262.5
1617.0 1.367 261.8
1627.0 1.347 261.1
1637.0 1.327 260.4
1647.0 1.306 259.7
1657.0 1.284 258.9
1667.0 1.262 258.1
1677.0 1.239 257.3
1687.0 1.215 256.5
1697.0 1.190 255.6
1707.0 1.164 254.7
1717.0 1.138 253.7
1727.0 1.111 252.7
1737.0 1.082 251.6
1747.0 1.053 250.5
1757.0 1.022 249.3
1767.0 0.991 248.1
1777.0 0.958 246.7
1787.0 0.924 245.3
1797.0 0.889 243.8
1807.0 0.852 242.1
1817.0 0.813 240.2
1827.0 0.773 238.2
1837.0 0.731 235.9
1847.0 0.686 233.4
1857.0 0.640 230.5
1867.0 0.590 227.1
1877.0 0.536 223.1
1887.0 0.479 218.2
1897.0 0.416 211.8
1907.0 0.344 202.9
1917.0 0.260 188.8
1927.0 0.152 157.4
1937.0 0.113 45.8
1947.0 0.244 359.5
1957.0 0.353 344.9
1967.0 0.443 336.8
1977.0 0.521 331.3
1987.0 0.590 327.1
1997.0 0.653 323.8
2007.0 0.711 321.1
2017.0 0.764 318.7
2027.0 0.814 316.7
2037.0 0.860 314.9
2047.0 0.904 313.2
2057.0 0.946 311.7
2067.0 0.985 310.4
2077.0 1.022 309.1
2087.0 1.058 307.9
2097.0 1.092 306.8
2107.0 1.124 305.8
2117.0 1.155 304.8
2127.0 1.185 303.9
2137.0 1.213 303.0
2147.0 1.240 302.1
2157.0 1.266 301.3
2167.0 1.291 300.5
2177.0 1.315 299.8
2187.0 1.338 299.1
2197.0 1.360 298.4
2207.0 1.381 297.7
2217.0 1.401 297.0
2227.0 1.421 296.4
2237.0 1.439 295.8
2247.0 1.457 295.2
2257.0 1.474 294.6
2267.0 1.490 294.0
2277.0 1.506 293.4
2287.0 1.521 292.9
2297.0 1.535 292.3
2307.0 1.548 291.8
2317.0 1.561 291.3
2327.0 1.573 290.7
2337.0 1.585 290.2
2347.0 1.596 289.7
2357.0 1.606 289.2
2367.0 1.616 288.7
2377.0 1.625 288.2
2387.0 1.634 287.8
2397.0 1.642 287.3
2407.0 1.650 286.8
2417.0 1.657 286.4
2427.0 1.663 285.9
2437.0 1.669 285.4
2447.0 1.674 285.0
2457.0 1.679 284.5
2467.0 1.684 284.1
2477.0 1.687 283.6
2487.0 1.691 283.2
2497.0 1.693 282.7
2507.0 1.696 282.3
2517.0 1.698 281.8
2527.0 1.699 281.4
2537.0 1.700 281.0
2547.0 1.700 280.5
2557.0 1.700 280.1
2567.0 1.699 279.6
2577.0 1.698 279.2
2587.0 1.696 278.8
2597.0 1.694 278.3
2607.0 1.692 277.9
2617.0 1.689 277.4
2627.0 1.685 277.0
2637.0 1.681 276.5
2647.0 1.677 276.1
2657.0 1.672 275.6
2667.0 1.666 275.2
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 .
www.stella-vega.de