J'admets, ça a l'air cool comme ça. Mais vous savez ce qui l'est encore plus? Bien sûr que vous le savez : le fait que la Terre est plate, duh!
Bref, comme bien expliqué ici, la Terre subit des pluies de météorites régulièrement, chaque année, et dont les plus connues sont les Léonides (~novembre) et les Perséides (~août). Mais il y en a bien plus (désolé j'ai la flemme de traduire):
Date
|
Description
|
Duration
|
| January 4 | Quadrantids: Radiant–Bootes. Very short lived shower, less that one day. Variable rate, but generally around 60 per hour. Speed 41 kps and bluish color. | |
| January 16 | Delta Cancrids: Radiant–just west of Beehive. Minor shower, rate about 4 per hour. Very swift. | |
| January 18 | Coma Berenicids: Radiant–near Coma star cluster. Only one or two per hour, but among fastest meteors known–65 kps. | |
| February 26 | Delta Leonids: Radiant–midway in Leo’s back. Feb. 5 to Mar. 19 with peak in late Feb. 5 per hour at 24 kps. | |
| March 16 | Corona-Australids: Radiant–16 hr 20 min, -48 deg. 5 to 7 per hour from Mar. 14 to Mar. 18. | |
| March 22 | Camelopardalids: No definite peak, with only one per hour. Slowest meteors at 7 kps. | |
| March 22 | March Geminids: Discovered in 1973 and confirmed in 1975. Rate generally about 40 per hour. Seem to be very slow meteors. | |
| April 4 | Kappa Serpentids: Radiant–near Corona Borealis . 4 or 5 per hour from Apr. 1 to 7. | |
| April 7 | Delta Draconids: Radiant–near Cepheus border. From Mar. 28 to Apr. 7. Slow meteors at about 5 per hour. | |
| April 10 | Virginids: Radiant– near Gamma in bowl of Virgo. 20 per hour. | |
| April 15 | April Fireballs: Radiant– between The Water Jar and Scutum, very erratic. From April 15 to 30 many bright bolides from Southeastern sky. | |
| April 17 | Sigma Leonids: Radiant– at Leo Virgo border, actually has moved into Virgo in recent years. Weak shower of 1 to 2 per hour. | |
| April 22 | Lyrids: Radiant– near Vega. 15 per hour, bright and long lasting meteors. From Comet Thatcher. | |
| April 25 | Mu Virginids: Radiant–near Libra. 7 to 10 per hour of medium speed meteors. | |
| April 28 | Alpha Bootids: Radiant– near Arcturus. From Apr. 14 to May 13. Slow meteors with fine trails. | |
| May 1 | Phi Bootids: Radiant–near Hercules. From Apr. 16 to May 12. 6 per hour. | |
| May 3 | Alpha Scorpiids: Radiant– Near Antares. From Apr. 16 to May 9. | |
| May 4 | Eta Aquarids: Radiant– near Water Jar. From Apr. 21 to May 12. 21 per hour, yellow with bright trails. Comet Halley debris. | |
| June 3 | Tau Herculids: Radiant–near Corona Borealis. About a month long, 15 per hour max, most quite faint. | |
| June 5 | Scorpiids: Radiant–near Ophiuchus. 20 per hour with some fireballs. | |
| June 7 | Arietids: About 30 per hour. Slow moving with some fireballs. | |
| June 13 | Ophiuchids: Radiant– near Scorpius. Only 3 per hour but fast moving bolides are common. | 25 days |
| June 16 | June Lyrids: Radiant–near Vega. Another part of May Lyrid meteor stream. 15 per hour, faint blue meteors. | |
| June 20 | Ophiuchids: Radiant– near Sagitarrius. Rate varies from 8 to 20, with occaisionally many more. | |
| June 30 | June Draconids: Radiant–near handle of Big Dipper. Rate varies from 10 to 100 per hour. Pons-Winnecke Comet is parent. | |
| July 28 | Delta Aquarids: Radiant–near Capricornus. 25 per hour, slow (24 kps) with yellow trails. | 40 days |
| July 30 | Capricornids: Radiant–near Aquarius. Tough to tell these from Delta Aquarids. 10 to 35 per hour with bolides. | |
| August 10 | Perseids: Radiant–near Double cluster. 50 to 100 per hour, yellow with trails and bolides. The best modern dependable shower. | 5 days. |
| August 20 | Kappa Cygnids: Radiant–near Deneb. 12 per hour with many fireballs. Duration–15 days. | |
| August 31 | Andromedids: Radiant– near Cassiopeia. Occaisionally spectacular, usually 20 per hour. Some red fireballs with trails. Biela’s Comet parent. | |
| September 23 | Alpha Aurigids: Radiant– near Capella. 12 per hour, fast with trails. | |
| October 7 | Piscids: Radiant–near Aries. 15 per hour at 28 kps. | |
| October 9 | Draconids: Raidiant–near Hercules. Spectacular when comet Giacobinni-Zinner passes near Earth. 200 per hour when comet is close is not uncommon, 1000 per hour sometimes. | |
| October 20 | Orionids: Radiant–near Taurus. 30 per hour, fast (67 kps) often in colors with long trails. | 8 days. |
| November 5 | Taurids: Radiant–near Pleaides. 10 per hour with many fireballs. Debris from comet Encke. | 45 days. |
| November 12 | Pegasids: Radiant–Near Square. from Oct. 10 to late Nov., 10 per hour, used to be spectacular. | |
| November 17 | Leonids: Radiant–near Sickle. Most spectacular of modern showers. 1966 saw 500,000 per hour– 140 per second. Comet Temple–Tuttle is parent. 20 per hour between 33 year shows, fastest known at 71 kps. | 4 days. |
| December 10 | Monocerids: Radiant– near Gemini. 12 per hour. | |
| December 11 | Sigma Hydrids: Radiant–near Head. 12 per hour, fast. | |
| December 14 | Geminids: Radiant–near Castor. 60 per hour, many bright, white but few trails. Icarus, the Earth-crossing astroid seems to be the parent. | 6 days. |
| December 14 | Leo Minorids: 10 per hour, somewhat faint. Discovered by amateurs in 1971. | |
| December 20 | Delta Arietids: 12 per hour, must view in early evening, before radiant sets. | |
| December 22 | Ursids: Radiant–Little Dipper Bowl. Medium speed, 20 per hour, many with bright trails. |
Question: sachant que le système solaire file comme on l'a vu au début dans l'espace intersidéral à des vitesses à décoiffer un chauve, comment se fait-il que ces pluies de météorites arrivent avec la régularité d'une horloge suisse tous les ans?!
