'Eta Aquariid' meteor shower

Reference

'Eta Aquarid Meteor Fall' (Eta Aquariid Meteor Shower), which has been active since April 15, is scheduled to reach its peak on May 5 and 6.

About 'Eta Aquarid' Meteor Fall

• 'Eta Aquarid' meteor shower One of the meteor showers that occurs biennially.

• The Eta Aquariid meteor shower is formed when the Earth Passes through the orbital path of Halley's Comet.
• Completing one orbital revolution of Halley's Comet: Halley's Comet orbits the Sun approximately every 76 years and when the Earth passes through its orbit, 'Eta Aquarid' is formed from Halley's debris.
• Discovery of Halley's Comet: The periodic nature of the appearance of Halley's comet was discovered by astronomer Edmund Halley in the year 1705.
  • Last appearance of Halley's Comet: Halley's Comet was last seen in 1986 and is expected to be seen again in the inner Solar System in the year 2061.
  • Orionids Meteor Shower: This shower occurs in October and also Halley's Comet Debris Is caused by.
• features
  • Lighted path/sign: The 'Eta Aquarid' meteor shower consists of intense meteors that leave behind them Creates a long blazed path/mark.
    • Fast Speed/Communication: It is about 66 km in the Earth's atmosphere. Moves at a speed of 2.37 lakh km per second (2.37 lakh km per hour).
• period and peak period
  • Time period in one year: The period of the Eta Aquariid meteor shower usually occurs between April 21 and May 12 each year.
    • The number of visible meteors remains low until reaching its peak around May 5 or 6.
  • Best visibility location: these showers Southern hemisphere In Indonesia and Australia These are best seen in countries like
    • Location of Radiant Showers: southern hemisphere observers Showers of Radiance Due to the location, meteorites are clearly visible in the sky.
      • 'Eta Aquarid' 'Radiant Point of Meteors'Located within the constellation 'Aquaris'.
        • Due to fog in the morning, observers have difficulty seeing them.
      • In the Northern Hemisphere, Eta Aquarid meteors are common. “Earthgrazers” That is, they appear in the form of long meteors, which appear to touch the earth's surface.

What are comets?

• Comets are icy remnants of the time when our solar system was forming about 4.6 billion years ago.
• Mixture: These contain a mixture of dust, rocks and ice.
• Orbital characteristics of comets
  • Elliptical Orbit: Comets move around the Sun in highly elliptical orbits.
  • Completing one revolution: Some comets may take hundreds of thousands of years to complete one orbit around the Sun.
  • size of comet
    • Most comets are about 10 kilometers wide.
    • As comets get closer to the Sun, they heat up and expel gases and dust particles outward.
      • Due to this, their top can be bigger in size than the planets.
  • tail formation
    • Material ejected from the comet forms the tail, which can extend millions of miles away from the comet.
      • These tails are a distinctive feature of comets when they are near the Sun.

• Number of known comets
  • Current Comet: So far 3,910 comets have been identified by NASA.
  • However, scientists believe there are billions of comets orbiting beyond Neptune, in regions such as the Kuiper Belt and the more distant Oort Cloud.

Relationship between meteor showers and comets

• Meteor showers occur when the Earth passes through dusty trails left by comets in space.
• Visible Streaks: Comet debris burns up in Earth's atmosphere, creating visible streaks.
  • these visible lines Known as meteor or 'shooting star'.
    • A small tail behind a burning shooting star Is also made.

Characteristics of Meteorites

• Meteors: These are small pieces of dust or rock, which as soon as it hits the Earth's atmosphere Get burnt.
  • Most meteors are actually as small as grains of sand and disappear in the sky.
• Meteorite: Sometimes large meteors remain safe and hit the ground and then Is called meteorite.

meteorite formation

• Meteor showers are formed when Earth passes through the comet's orbital plane and encounters debris left behind by the comet.
• As Earth passes through this debris field, the sky lights up with small and large meteoroids.

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