Erg erg

Symbolerg
SystemCGS
QuantityEnergy
Value in SI10⁻⁷ J (exact)
Defined / adopted1873 (British Association)

About the Erg

The erg is one dyne acting through one centimetre, exactly 10⁻⁷ joules. Its name comes from the Greek ergon, work. Astrophysicists long reported stellar luminosities in ergs per second, and the habit persists in some journals.

Related Units