Solar Flux Unit

The Solar Flux Unit ( symbol : SFU ) is next to the Jansky ( ) a common unit in radio astronomy for the spectral flux density and the solar flux : ${\displaystyle \mathrm {Jy} }$

${\displaystyle {\begin{aligned}1\,\mathrm {SFU} &={10}^{4}\,\mathrm {Jy} \\&={10}^{-22}\,\mathrm {\frac {W}{m^{2}\cdot Hz}} \\&={10}^{-19}\,\mathrm {\frac {erg}{s\cdot cm^{2}\cdot Hz}} \end{aligned}}}$

with the units

• W for watts
• Hz for Hertz
• erg for erg .

source

• sizes.com