Time to update the sign:
It has been 0 days since I last had to use some weird astrophysical quantity measured in centimeters.
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@simonbp cgs units are weirdly and annoyingly persistent in astrophysics. erg/s/cm²/Å? Really? You're already using metric units, proper SI ones are right there.
@spacelizard @simonbp and then there's magnitudes...
@sundogplanets @simonbp Of course, because the best way to deal with a wide range of numbers is to take the base 10 logarithm then multiply by minus 2.5.
"magnitudes per square arcsecond" are an even worse units crime though. Mixing reversed logarithmic units with normal units is just all wrong.
@spacelizard @sundogplanets The equation in question takes things in AU, cm (2x), micron, km, g/cc, unitless flux, and m/s, to produce a result in kg/s. The paper was published in 2024.
