Sentences with phrase «visual magnitude difference»

Denebola has been classed as a Delta Scuti - type variable star (which vary in brightness by small amounts over periods lasting only hours and including radial as well as non-radial pulsations) as it exhibits small, Delta Sculti - type variability with around a 2.09 to 2.16 visual magnitude difference — in V on UBV Johnson system (Mkrtichian and Yurkov, 1998).