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Original file (SVG file, nominally 600 × 480 pixels, file size: 19 KB)
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| Description |
English: Plot of the number of moons discovered in a year vs. the year number, up to 2019, using the discovery years given in wikipedia's list of natural satellites. The first peak at 1980 was caused by Voyager 1; the second at 1986 caused by Voyager 2. The peaks in recent times is caused by improvements to ground- and Earth orbit-based optical telescopes. The drop off after 2007 is probably due to discoveries that have been announced with considerable delay (the 20 objects announced in 2019 were first observed in 2004). |
| Date | |
| Source |
Own work |
| Author | Renerpho, based on previous version by Mike Peel (mikepeel.net) |
| Permission (Reusing this file) |
Creative Commons CC-BY-SA-2.5. Please attribute using name and website URL. |
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Created using Gnuplot with the following commands:
set terminal svg set output '/Moons.svg' set key off set boxwidth 0.9 relative set style fill solid 1.0 set xlabel 'Year' set ylabel 'Number' set xrange [1600:2025] set yrange [*:*] set title 'Number of natural satellites discovered vs. year of discovery' plot '/Moons.txt' with boxes lt 1
The dataset is:
1610.0 4.0 1611.0 0.0 1612.0 0.0 1613.0 0.0 1614.0 0.0 1615.0 0.0 1616.0 0.0 1617.0 0.0 1618.0 0.0 1619.0 0.0 1620.0 0.0 1621.0 0.0 1622.0 0.0 1623.0 0.0 1624.0 0.0 1625.0 0.0 1626.0 0.0 1627.0 0.0 1628.0 0.0 1629.0 0.0 1630.0 0.0 1631.0 0.0 1632.0 0.0 1633.0 0.0 1634.0 0.0 1635.0 0.0 1636.0 0.0 1637.0 0.0 1638.0 0.0 1639.0 0.0 1640.0 0.0 1641.0 0.0 1642.0 0.0 1643.0 0.0 1644.0 0.0 1645.0 0.0 1646.0 0.0 1647.0 0.0 1648.0 0.0 1649.0 0.0 1650.0 0.0 1651.0 0.0 1652.0 0.0 1653.0 0.0 1654.0 0.0 1655.0 1.0 1656.0 0.0 1657.0 0.0 1658.0 0.0 1659.0 0.0 1660.0 0.0 1661.0 0.0 1662.0 0.0 1663.0 0.0 1664.0 0.0 1665.0 0.0 1666.0 0.0 1667.0 0.0 1668.0 0.0 1669.0 0.0 1670.0 0.0 1671.0 1.0 1672.0 1.0 1673.0 0.0 1674.0 0.0 1675.0 0.0 1676.0 0.0 1677.0 0.0 1678.0 0.0 1679.0 0.0 1680.0 0.0 1681.0 0.0 1682.0 0.0 1683.0 0.0 1684.0 2.0 1685.0 0.0 1686.0 0.0 1687.0 0.0 1688.0 0.0 1689.0 0.0 1690.0 0.0 1691.0 0.0 1692.0 0.0 1693.0 0.0 1694.0 0.0 1695.0 0.0 1696.0 0.0 1697.0 0.0 1698.0 0.0 1699.0 0.0 1700.0 0.0 1701.0 0.0 1702.0 0.0 1703.0 0.0 1704.0 0.0 1705.0 0.0 1706.0 0.0 1707.0 0.0 1708.0 0.0 1709.0 0.0 1710.0 0.0 1711.0 0.0 1712.0 0.0 1713.0 0.0 1714.0 0.0 1715.0 0.0 1716.0 0.0 1717.0 0.0 1718.0 0.0 1719.0 0.0 1720.0 0.0 1721.0 0.0 1722.0 0.0 1723.0 0.0 1724.0 0.0 1725.0 0.0 1726.0 0.0 1727.0 0.0 1728.0 0.0 1729.0 0.0 1730.0 0.0 1731.0 0.0 1732.0 0.0 1733.0 0.0 1734.0 0.0 1735.0 0.0 1736.0 0.0 1737.0 0.0 1738.0 0.0 1739.0 0.0 1740.0 0.0 1741.0 0.0 1742.0 0.0 1743.0 0.0 1744.0 0.0 1745.0 0.0 1746.0 0.0 1747.0 0.0 1748.0 0.0 1749.0 0.0 1750.0 0.0 1751.0 0.0 1752.0 0.0 1753.0 0.0 1754.0 0.0 1755.0 0.0 1756.0 0.0 1757.0 0.0 1758.0 0.0 1759.0 0.0 1760.0 0.0 1761.0 0.0 1762.0 0.0 1763.0 0.0 1764.0 0.0 1765.0 0.0 1766.0 0.0 1767.0 0.0 1768.0 0.0 1769.0 0.0 1770.0 0.0 1771.0 0.0 1772.0 0.0 1773.0 0.0 1774.0 0.0 1775.0 0.0 1776.0 0.0 1777.0 0.0 1778.0 0.0 1779.0 0.0 1780.0 0.0 1781.0 0.0 1782.0 0.0 1783.0 0.0 1784.0 0.0 1785.0 0.0 1786.0 0.0 1787.0 2.0 1788.0 0.0 1789.0 2.0 1790.0 0.0 1791.0 0.0 1792.0 0.0 1793.0 0.0 1794.0 0.0 1795.0 0.0 1796.0 0.0 1797.0 0.0 1798.0 0.0 1799.0 0.0 1800.0 0.0 1801.0 0.0 1802.0 0.0 1803.0 0.0 1804.0 0.0 1805.0 0.0 1806.0 0.0 1807.0 0.0 1808.0 0.0 1809.0 0.0 1810.0 0.0 1811.0 0.0 1812.0 0.0 1813.0 0.0 1814.0 0.0 1815.0 0.0 1816.0 0.0 1817.0 0.0 1818.0 0.0 1819.0 0.0 1820.0 0.0 1821.0 0.0 1822.0 0.0 1823.0 0.0 1824.0 0.0 1825.0 0.0 1826.0 0.0 1827.0 0.0 1828.0 0.0 1829.0 0.0 1830.0 0.0 1831.0 0.0 1832.0 0.0 1833.0 0.0 1834.0 0.0 1835.0 0.0 1836.0 0.0 1837.0 0.0 1838.0 0.0 1839.0 0.0 1840.0 0.0 1841.0 0.0 1842.0 0.0 1843.0 0.0 1844.0 0.0 1845.0 0.0 1846.0 1.0 1847.0 0.0 1848.0 1.0 1849.0 0.0 1850.0 0.0 1851.0 2.0 1852.0 0.0 1853.0 0.0 1854.0 0.0 1855.0 0.0 1856.0 0.0 1857.0 0.0 1858.0 0.0 1859.0 0.0 1860.0 0.0 1861.0 0.0 1862.0 0.0 1863.0 0.0 1864.0 0.0 1865.0 0.0 1866.0 0.0 1867.0 0.0 1868.0 0.0 1869.0 0.0 1870.0 0.0 1871.0 0.0 1872.0 0.0 1873.0 0.0 1874.0 0.0 1875.0 0.0 1876.0 0.0 1877.0 2.0 1878.0 0.0 1879.0 0.0 1880.0 0.0 1881.0 0.0 1882.0 0.0 1883.0 0.0 1884.0 0.0 1885.0 0.0 1886.0 0.0 1887.0 0.0 1888.0 0.0 1889.0 0.0 1890.0 0.0 1891.0 0.0 1892.0 1.0 1893.0 0.0 1894.0 0.0 1895.0 0.0 1896.0 0.0 1897.0 0.0 1898.0 0.0 1899.0 1.0 1900.0 0.0 1901.0 0.0 1902.0 0.0 1903.0 0.0 1904.0 1.0 1905.0 1.0 1906.0 0.0 1907.0 0.0 1908.0 1.0 1909.0 0.0 1910.0 0.0 1911.0 0.0 1912.0 0.0 1913.0 0.0 1914.0 1.0 1915.0 0.0 1916.0 0.0 1917.0 0.0 1918.0 0.0 1919.0 0.0 1920.0 0.0 1921.0 0.0 1922.0 0.0 1923.0 0.0 1924.0 0.0 1925.0 0.0 1926.0 0.0 1927.0 0.0 1928.0 0.0 1929.0 0.0 1930.0 0.0 1931.0 0.0 1932.0 0.0 1933.0 0.0 1934.0 0.0 1935.0 0.0 1936.0 0.0 1937.0 0.0 1938.0 2.0 1939.0 0.0 1940.0 0.0 1941.0 0.0 1942.0 0.0 1943.0 0.0 1944.0 0.0 1945.0 0.0 1946.0 0.0 1947.0 0.0 1948.0 1.0 1949.0 1.0 1950.0 0.0 1951.0 1.0 1952.0 0.0 1953.0 0.0 1954.0 0.0 1955.0 0.0 1956.0 0.0 1957.0 0.0 1958.0 0.0 1959.0 0.0 1960.0 0.0 1961.0 0.0 1962.0 0.0 1963.0 0.0 1964.0 0.0 1965.0 0.0 1966.0 1.0 1967.0 0.0 1968.0 0.0 1969.0 0.0 1970.0 0.0 1971.0 0.0 1972.0 0.0 1973.0 0.0 1974.0 1.0 1975.0 1.0 1976.0 0.0 1977.0 0.0 1978.0 1.0 1979.0 3.0 1980.0 7.0 1981.0 0.0 1982.0 1.0 1983.0 0.0 1984.0 0.0 1985.0 1.0 1986.0 10.0 1987.0 0.0 1988.0 0.0 1989.0 5.0 1990.0 1.0 1991.0 0.0 1992.0 0.0 1993.0 0.0 1994.0 0.0 1995.0 0.0 1996.0 0.0 1997.0 2.0 1998.0 0.0 1999.0 3.0 2000.0 22.0 2001.0 15.0 2002.0 5.0 2003.0 27.0 2004.0 16.0 2005.0 7.0 2006.0 10.0 2007.0 5.0 2008.0 1.0 2009.0 2.0 2010.0 3.0 2011.0 3.0 2012.0 1.0 2013.0 1.0 2014.0 0.0 2015.0 0.0 2016.0 3.0 2017.0 9.0 2018.0 1.0 2019.0 20.0
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:40, 24 November 2019 | | 600 × 480 (19 KB) | Renerpho | Update with new and revised data since 2008 |
| 18:01, 13 March 2008 |  | 600 × 480 (75 KB) | Liliana-60 | fixed | |
| 23:05, 12 March 2008 |  | 600 × 480 (75 KB) | Mike Peel | {{Information |Description={{en|Plot of the number of moons discovered in a year vs. the year number, up to 2008, using the discovery years at [http://en.wiki.x.io/w/index.php?title=List_of_moons&oldid=197826609]. The first peak at 1980 was caused by |
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