| WDS: | STF981 | WDS ID/Discoverer |
| P: | 1089.700 | Orbital period (years) |
| a: | 3.35 | Semi-major axis (arcseconds) |
| i: | 102.12 | Inclination (degrees) |
| Ω: | 150.56 | Longitude of ascending node (degrees) |
| T: | 1016.700 | Epoch of periastron passage (year) |
| e: | 0.34 | Eccentricity |
| ω: | 129.81 | Longitude of periastron (degrees) |
| Start-Year: | 1480.15 | Year |
| End-Year: | 2569.85 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for STF981 |
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| Position: | 065528.54+300942.3 | Epoch-2000 right ascension and declination |
| WDS-ID: | 06555+3010 | WDS designation |
| Discoverer Code: | STF981 | Discover designation and components |
| ADS number: | 5570 | Aitken Double Star catalog |
| HD number: | 50662 | HD catalog number |
| Hipparcos number: | 33287 | Hipparcos catalog number |
| V1: | 8.72 | Magnitude of the primary |
| V2: | 8.97 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | Date of last observation | |
| Orbit grade: | 5 | Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | n | Flags |
| Ephemerides: | Ephemerides | |
| Code: | Kiy2017 | Reference |
-- Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements) --
| Green plus signs: | Visual (micrometric) measures |
| Violet asterisks: | Photographic measures |
| Blue symbols: | Various interferometric techniques |
| Dot-dash line: | Indicates the line of nodes |
Year Sep[“] PA[°] --------------------------------------------- 2026.50 0.752 108.59 -------------------------- 1480.15 2.083 174.25 1490.15 2.200 172.65 1500.15 2.314 171.21 1510.15 2.427 169.91 1520.15 2.537 168.72 1530.15 2.645 167.63 1540.15 2.750 166.62 1550.15 2.852 165.69 1560.15 2.950 164.82 1570.15 3.046 164.00 1580.15 3.137 163.24 1590.15 3.225 162.51 1600.15 3.309 161.83 1610.15 3.388 161.17 1620.15 3.464 160.55 1630.15 3.535 159.95 1640.15 3.601 159.38 1650.15 3.662 158.82 1660.15 3.718 158.28 1670.15 3.769 157.76 1680.15 3.815 157.25 1690.15 3.855 156.76 1700.15 3.890 156.27 1710.15 3.918 155.79 1720.15 3.941 155.31 1730.15 3.957 154.84 1740.15 3.967 154.38 1750.15 3.970 153.91 1760.15 3.966 153.45 1770.15 3.955 152.98 1780.15 3.937 152.51 1790.15 3.911 152.04 1800.15 3.878 151.55 1810.15 3.836 151.06 1820.15 3.787 150.56 1830.15 3.729 150.04 1840.15 3.662 149.50 1850.15 3.587 148.95 1860.15 3.502 148.36 1870.15 3.408 147.75 1880.15 3.305 147.10 1890.15 3.192 146.41 1900.15 3.069 145.66 1910.15 2.935 144.85 1920.15 2.792 143.96 1930.15 2.638 142.96 1940.15 2.474 141.84 1950.15 2.301 140.56 1960.15 2.117 139.06 1970.15 1.924 137.26 1980.15 1.723 135.05 1990.15 1.514 132.25 2000.15 1.301 128.54 2010.15 1.086 123.36 2020.15 0.877 115.66 2030.15 0.685 103.40 2040.15 0.541 83.29 2050.15 0.494 54.79 2060.15 0.569 27.80 2070.15 0.728 9.87 2080.15 0.923 358.92 2090.15 1.130 351.90 2100.15 1.335 347.05 2110.15 1.532 343.47 2120.15 1.717 340.69 2130.15 1.884 338.43 2140.15 2.034 336.53 2150.15 2.163 334.87 2160.15 2.271 333.38 2170.15 2.359 332.01 2180.15 2.425 330.74 2190.15 2.472 329.52 2200.15 2.499 328.33 2210.15 2.509 327.17 2220.15 2.501 326.00 2230.15 2.479 324.82 2240.15 2.442 323.61 2250.15 2.392 322.36 2260.15 2.331 321.05 2270.15 2.260 319.66 2280.15 2.180 318.18 2290.15 2.092 316.57 2300.15 1.998 314.82 2310.15 1.898 312.89 2320.15 1.793 310.74 2330.15 1.686 308.32 2340.15 1.577 305.57 2350.15 1.467 302.40 2360.15 1.359 298.73 2370.15 1.253 294.43 2380.15 1.152 289.35 2390.15 1.060 283.35 2400.15 0.978 276.28 2410.15 0.912 268.05 2420.15 0.866 258.75 2430.15 0.843 248.66 2440.15 0.845 238.32 2450.15 0.872 228.34 2460.15 0.922 219.20 2470.15 0.992 211.17 2480.15 1.076 204.29 2490.15 1.172 198.47 2500.15 1.276 193.57 2510.15 1.385 189.43 2520.15 1.499 185.90 2530.15 1.616 182.88 2540.15 1.733 180.26 2550.15 1.851 177.98 2560.15 1.970 175.98
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 15:52:48 |