BSL Astronomy – fireball

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(Photo from UKFAII – Markus Kempf)

Fireball
The fireballs are also known as bolides
when they explode in the atmosphere.
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A fireball is an unusually bright meteor that reaches a visual magnitude of -3 or brighter when seen at the observer’s zenith, the majority of fireballs possibly only last few seconds.
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BSL Sign Languages
of fireball

(BSL Version)
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BSL Explanation
of fireball

(BSL Version – Glossary of Astronomy)
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Glossary of Astronomy – fireball

  • a fireball is a very bright meteor that enters Earth’s atmosphere at high speed and burns up.
  • typically about the size of a marble or larger and they produce a more extreme light as they enter the Earth’s atmosphere.

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What happens if you see a fireball?

  • have you seen a fireball over the UK? ~ yes, report it!
  • your reports help us calculate the trajectories of dust and rocks as they enter Earth’s atmosphere.

    Link: The UK Fireball Alliance (UKFAll)

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