› Forums › Spectroscopy › Novae Cas and Per 2020 H alpha at medium resolution › arcane units
3 December 2020 at 1:11 pm
#583451

Participant
nm I can cope with (though the need to include a decimal point when defining well known lines is ugly). It is the use of Janskys for flux in optical spectra instead of the traditional (but definitely not SI) erg/cm2/sec/Angstrom that really throws me when I see it as being based on frequency, it completely changes the shape of the spectrum.