| quantity that correlates with the more or less luminous aspect of a star and that is defined by the formula
m = m0 — 2,5 log10 (E/E0)
where E is the point brilliance of the star considered, m0 and E0 are constants based on the magnitudes ascribed to certain standard stars
unit : 1
NOTE – In addition to the visual apparent magnitude defined above, other apparent magnitudes (photographic, bolometric, etc.) are defined by the same formula, but where E and E0 are the responses of a detector having a specified spectral responsivity.
|