An Etymological Dictionary of Astronomy and Astrophysics
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→ Apparent magnitude in the visual wavelengths, around 5600 Å. → visual magnitude.

→ apparent; → visual; → magnitude.

Magnitude defined for the combination of a photographic plate and a yellow filter, approximating the spectral sensitivity of the eye.

→ photo- + → visual; → magnitude.

The → apparent magnitude of a celestial body in the color sensitivity region of the human eye at a wavelength of 5600 Å. Visual magnitude is now essentially synonymous with V magnitude, which is determined photometrically.

→ visual; → magnitude.