Units

Flux

Jansky

Typically used in radio astronomy $1\mathrm{Jy}=10^{-26}\mathrm{W}{\mathrm{m}}^{-2}\mathrm{H}{\mathrm{z}}^{-1}=10^{-23}\mathrm{erg}{\mathrm{s}}^{-1}\mathrm{c}{\mathrm{m}}^{-2}\mathrm{H}{\mathrm{z}}^{-1}$