Tuesday, December 06, 2022

How do meteor showers occur and how are they related to the lenoids? Here’s NASA’s Explanation – Cilacap Update A meteor shower is an astronomical phenomenon in which several meteors are seen emerging or emanating from the same point in the night sky.

These meteors are caused by streams of cosmic debris called meteoroids that enter Earth’s atmosphere at breakneck speed in parallel trajectories.

Most meteors are smaller than a grain of sand, so almost all of them disintegrate and never hit the Earth’s surface.

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Extremely intense or unusual meteor showers, known as meteor explosions and meteor storms, generate at least 1,000 meteors per hour, mostly from the Leonids.

The Meteor Data Center lists more than 900 causes of meteor showers, of which about 100 have been identified. NASA maintains a daily map of active meteor showers.

Here is a list of some meteor showers and the timing of their appearance:

  • Quadrantids, in early January, similar to the minor planetary parent object 2003 EH1 and comet C/1490 Y1. Comet C/1385 U1 has also been studied as a possible source.
  • Lyrids, Akhir April, Parent Objek Comet Thatcher
  • Pie Pupids (periodic), end April, parent objec comet 26p/grig-skjellerup
  • Eta Aquariids, early May, parent object Comet 1P/Halley
  • Arietids, mid-June, parent object Comet 96P/Machholz, Marsden and Kracht Comet Group Complex
  • Beta Taurids, late June, parent object Comet 2P/Encke
  • June bootids (periodic), Akhir Juni, parent Objec Comet 7p/Ponce-Winneke
  • Southern Delta Aquariids, akhir juli, parent objeck comet 96P/Machholz, Marsden dan Kracht Comet Group Complex
  • Alpha Makaronids, Akhir Julie, Parent Objec Comet 169P/NEAT
  • Perseids, mid-August, parent object Comet 109P/Swift-Tuttle
  • Kappa Cygnids, mid-August, parent object Minor Planet 2008 ED69
  • Origids (periodic), aval september, parent objec comet c/1911 n1 (kiss)
  • Draconids (periodic), Oval October, parent Objek Comet 21P/Giacobini-Zinner
  • Orionids, last October, parent objec comet 1p/heli
  • Southern Taurids, early November, parent object Comet 2P/Encke
  • Northern Taurids, Pertenghan Nov., Parent Objek Minor Planet 2004 TG10 and others
  • Andromedids (periodic), pteryghan november, parent objec comet 3d/bela
  • Alpha monocerotids (periodic), mid-November, origin object unknown
  • Leonids, Pertenghan Nov., Parent Objek Comet 55p/tempel-tuttle
  • Phoenicids (periodic), Aval Dec, parent Objek Comet 289P/Blanpain
  • Geminids, Pertenghan Dec, Parent Objek Minor Planet 3200 Phaethon
  • Ursids, late December, parent object Comet 8P/Tuttle

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