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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:32:09
WDS:
STF1954AB
WDS ID/Discoverer
P:
1150.104
Orbital period (years)
a:
6.37793
Semi-major axis (arcseconds)
i:
101.216
Inclination (degrees)
Ω:
162.085
Longitude of ascending node (degrees)
T:
2138.944
Epoch of periastron passage (year)
e:
0.68349
Eccentricity
ω:
80.433
Longitude of periastron (degrees)
Start-Year:
1450.0
Year
End-Year:
2600.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
153448.14+103220.0
Epoch-2000 right ascension and declination
WDS-ID:
15348+1032
WDS designation
Discoverer Code:
STF1954AB
Discover designation and components
ADS number:
9701
Aitken Double Star catalog
HD number:
138917
HD catalog number
Hipparcos number:
76276
Hipparcos catalog number
V1:
4.17
Magnitude of the primary
V2:
5.16
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 4.025 171.0
-------------------------
1450.0 3.892 312.5
1460.0 3.788 311.3
1470.0 3.684 310.0
1480.0 3.579 308.6
1490.0 3.474 307.2
1500.0 3.369 305.6
1510.0 3.264 304.0
1520.0 3.161 302.2
1530.0 3.058 300.4
1540.0 2.957 298.4
1550.0 2.858 296.2
1560.0 2.762 293.9
1570.0 2.668 291.5
1580.0 2.578 288.8
1590.0 2.493 286.0
1600.0 2.412 283.0
1610.0 2.337 279.8
1620.0 2.268 276.4
1630.0 2.206 272.8
1640.0 2.152 269.0
1650.0 2.106 265.0
1660.0 2.070 260.8
1670.0 2.044 256.6
1680.0 2.028 252.2
1690.0 2.022 247.8
1700.0 2.027 243.4
1710.0 2.043 239.0
1720.0 2.069 234.7
1730.0 2.104 230.6
1740.0 2.149 226.6
1750.0 2.202 222.7
1760.0 2.262 219.1
1770.0 2.330 215.7
1780.0 2.403 212.4
1790.0 2.481 209.4
1800.0 2.564 206.6
1810.0 2.650 203.9
1820.0 2.739 201.4
1830.0 2.830 199.1
1840.0 2.923 196.9
1850.0 3.016 194.8
1860.0 3.109 192.9
1870.0 3.202 191.1
1880.0 3.294 189.4
1890.0 3.384 187.8
1900.0 3.472 186.2
1910.0 3.557 184.8
1920.0 3.639 183.4
1930.0 3.716 182.0
1940.0 3.787 180.7
1950.0 3.853 179.5
1960.0 3.912 178.3
1970.0 3.962 177.1
1980.0 4.003 176.0
1990.0 4.034 174.9
2000.0 4.051 173.8
2010.0 4.054 172.7
2020.0 4.040 171.6
2030.0 4.006 170.5
2040.0 3.947 169.3
2050.0 3.861 168.1
2060.0 3.740 166.9
2070.0 3.578 165.5
2080.0 3.365 164.0
2090.0 3.089 162.3
2100.0 2.734 160.2
2110.0 2.286 157.3
2120.0 1.731 152.8
2130.0 1.081 143.2
2140.0 0.464 104.9
2150.0 0.671 18.0
2160.0 1.346 357.8
2170.0 1.990 351.1
2180.0 2.555 347.6
2190.0 3.040 345.3
2200.0 3.454 343.6
2210.0 3.808 342.2
2220.0 4.109 341.0
2230.0 4.367 340.0
2240.0 4.586 339.1
2250.0 4.774 338.3
2260.0 4.933 337.5
2270.0 5.068 336.8
2280.0 5.181 336.1
2290.0 5.274 335.5
2300.0 5.350 334.8
2310.0 5.411 334.2
2320.0 5.457 333.6
2330.0 5.491 333.0
2340.0 5.513 332.4
2350.0 5.524 331.8
2360.0 5.526 331.2
2370.0 5.518 330.6
2380.0 5.502 330.0
2390.0 5.479 329.4
2400.0 5.448 328.8
2410.0 5.410 328.2
2420.0 5.367 327.6
2430.0 5.317 326.9
2440.0 5.262 326.3
2450.0 5.202 325.6
2460.0 5.138 325.0
2470.0 5.069 324.3
2480.0 4.996 323.5
2490.0 4.919 322.8
2500.0 4.838 322.1
2510.0 4.755 321.3
2520.0 4.668 320.5
2530.0 4.579 319.6
2540.0 4.487 318.7
2550.0 4.392 317.8
2560.0 4.296 316.8
2570.0 4.197 315.8
2580.0 4.097 314.8
2590.0 3.996 313.7
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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