July 7th, Thursday, New Zealand: a large meteor exploded over the sea near the local capital, Wellington. About two weeks later, continuing, a meteorite was observed above. Canterbury, a region in the east-central part of the South Island. The events are interesting, but not unprecedented, as these “greenish orbs” are not uncommon in the area, with an average of 4 (four) meteorites falling on the country annually.

Luminous phenomena signal asteroid fragment hit in the atmosphere – and can vary from a few centimeters of debris to a meter in diameter. Experts point out that the events cause the visual result (and the green color) for chemical reasons. Some parts of space material contain iron as well as nickeland reach an atmosphere in excess of up to 60 km per second.

A green aura also appears in the Perseid meteor shower.

Friction quickly generates a large amount of heat and the above materials evaporate, giving off a greenish effect. This green aura is present in the meteor shower. perseids, what happens every year. This year, your peak will be on that day August 13 in the southern hemisphere. The speed will be similar: 60 km per second. The so-called “Perseids” are nothing but cometary dust. Swift Tuttle. A bright green trace is visible, especially at the beginning of the procedure.

Despite the visual effect be similar to the one found in the northern lights, the reasons are different. The famous glow of the aurora is created by oxygen ions in the upper atmosphere and is caused by collisions of particles emitted by the sun and oxygen molecules. Ions recombine with electrons to form oxygen atoms. The remaining energy generated in this process creates the characteristic glow characteristic of the auroras.

(Aurora as seen by the International Space Station / loans: Wikimedia Commons, CC BY-ND)

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Fireball: video shows meteor shining in Santa Catarina sky
The record was captured by the cameras of the Brazilian Meteor Observatory Network.

Source: super.abril.com.br, sciencealert.com

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