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Summary

A foe is a unit of energy equal to 10^44 joules or 10^51 ergs, used to measure the large amount of energy released by a supernova.

The word is an acronym derived from the phrase [ten to the power of] fifty-one ergs.

This unit of measure is convenient because a supernova typically releases about one foe of observable energy in a very short period (which can be measured in seconds). In comparison, if the Sun had its current luminosity throughout its entire lifetime, it would release 3.827×10^26 W (Symbol for Watt) × 3.1536×10^7 s/yr × 10^10 yr ≈ 1.2 foe.

Others

Supernova

Hypernova

Black Hole

Big Bang

Observable Universe.

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