What is Magnitude in Astronomy? Should We Use Apparent or Absolute?

SOLVED: Astronomy - The apparent magnitude a unitless logarithmic measure of the brightness of a star. The brighter a star, the smaller its apparent magnitude. The apparent magnitude is related to the brightness of the observed light.L =  Lâ‚€ InWhere Lâ‚€ is a constant.The brightness of the variable star Delta Cephei changes periodically over approximately 130 hours. At a certain time, the magnitude is decreasing at a rate of 0.01 per hour. Find the rate at which the brightness of Delta Cep

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Using the Magnitude Scale to Compare Star Brightness

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SOLVED: The apparent brightness on Earth of a star is measured on the magnitude scale. The apparent magnitude m of a star is defined by m = 2.5 log I, where I is the relative intensity. The accompanying exponential formula is I = 2.51m. To find the relative intensity, we divide the intensity of light from the star Vega by the intensity of light from the star we are studying, with both intensities measured on Earth. Thus, apparent magnitude is a logarithmic function of relative intensity. A certa

The absolute magnitude of the Sun is the apparent magnitude of ... | Filo

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