| WDS: | BU84 | WDS ID/Discoverer |
| P: | 1129.394 | Orbital period (years) |
| a: | 2.20836 | Semi-major axis (arcseconds) |
| i: | 97.332 | Inclination (degrees) |
| Ω: | 179.628 | Longitude of ascending node (degrees) |
| T: | 2086.059 | Epoch of periastron passage (year) |
| e: | 0.76942 | Eccentricity |
| ω: | 252.208 | Longitude of periastron (degrees) |
| Start-Year: | 1460.3029999999999 | Year |
| End-Year: | 2589.697 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for BU84 |
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| Position: | 031600.86-055507.3 | Epoch-2000 right ascension and declination |
| WDS-ID: | 03160-0555 | WDS designation |
| Discoverer Code: | BU84 | Discover designation and components |
| ADS number: | 2440 | Aitken Double Star catalog |
| HD number: | 20319 | HD catalog number |
| Hipparcos number: | 15203 | Hipparcos catalog number |
| V1: | 6.38 | Magnitude of the primary |
| V2: | 7.93 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 2015 | Date of last observation |
| Orbit grade: | 5 | Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | Flags | |
| Ephemerides: | Ephemerides | |
| Code: | Izm2019 | 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 0.974 5.43 -------------------------- 1460.30 1.510 161.92 1470.30 1.475 161.35 1480.30 1.439 160.75 1490.30 1.402 160.12 1500.30 1.365 159.46 1510.30 1.327 158.76 1520.30 1.289 158.02 1530.30 1.250 157.24 1540.30 1.211 156.40 1550.30 1.171 155.51 1560.30 1.131 154.55 1570.30 1.091 153.52 1580.30 1.051 152.42 1590.30 1.010 151.22 1600.30 0.969 149.93 1610.30 0.928 148.52 1620.30 0.887 146.98 1630.30 0.847 145.29 1640.30 0.806 143.44 1650.30 0.767 141.39 1660.30 0.727 139.12 1670.30 0.689 136.59 1680.30 0.652 133.76 1690.30 0.615 130.60 1700.30 0.581 127.06 1710.30 0.549 123.08 1720.30 0.519 118.63 1730.30 0.493 113.67 1740.30 0.470 108.18 1750.30 0.451 102.19 1760.30 0.438 95.76 1770.30 0.430 89.01 1780.30 0.427 82.09 1790.30 0.431 75.18 1800.30 0.440 68.48 1810.30 0.454 62.14 1820.30 0.474 56.24 1830.30 0.497 50.85 1840.30 0.524 45.98 1850.30 0.553 41.60 1860.30 0.585 37.69 1870.30 0.618 34.18 1880.30 0.653 31.04 1890.30 0.688 28.21 1900.30 0.723 25.66 1910.30 0.758 23.35 1920.30 0.793 21.24 1930.30 0.827 19.31 1940.30 0.859 17.53 1950.30 0.890 15.87 1960.30 0.918 14.32 1970.30 0.943 12.86 1980.30 0.964 11.46 1990.30 0.981 10.12 2000.30 0.991 8.82 2010.30 0.993 7.54 2020.30 0.985 6.24 2030.30 0.963 4.91 2040.30 0.923 3.49 2050.30 0.855 1.90 2060.30 0.747 359.93 2070.30 0.581 357.07 2080.30 0.337 350.79 2090.30 0.068 282.92 2100.30 0.315 191.61 2110.30 0.591 184.92 2120.30 0.819 182.33 2130.30 1.007 180.80 2140.30 1.163 179.72 2150.30 1.296 178.88 2160.30 1.408 178.19 2170.30 1.505 177.59 2180.30 1.589 177.06 2190.30 1.662 176.59 2200.30 1.725 176.14 2210.30 1.780 175.73 2220.30 1.828 175.34 2230.30 1.869 174.97 2240.30 1.905 174.62 2250.30 1.936 174.27 2260.30 1.962 173.94 2270.30 1.983 173.61 2280.30 2.001 173.29 2290.30 2.015 172.98 2300.30 2.026 172.67 2310.30 2.034 172.36 2320.30 2.039 172.06 2330.30 2.042 171.75 2340.30 2.041 171.45 2350.30 2.039 171.14 2360.30 2.034 170.84 2370.30 2.027 170.53 2380.30 2.018 170.22 2390.30 2.008 169.91 2400.30 1.995 169.59 2410.30 1.981 169.27 2420.30 1.965 168.95 2430.30 1.948 168.61 2440.30 1.929 168.28 2450.30 1.909 167.93 2460.30 1.887 167.58 2470.30 1.864 167.22 2480.30 1.840 166.85 2490.30 1.815 166.47 2500.30 1.789 166.08 2510.30 1.761 165.68 2520.30 1.733 165.27 2530.30 1.703 164.84 2540.30 1.673 164.39 2550.30 1.642 163.93 2560.30 1.609 163.45 2570.30 1.576 162.95 2580.30 1.542 162.43
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 15:09:06 |