absolute magnitude

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  • noun

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(astronomy) the magnitude that a star would have if it were viewed from a distance of 10 parsecs (32

References in periodicals archive ?
The comet's brightness at the discovery return may have been due to a fragmentation event, as the absolute magnitude of the asteroid is very much fainter.
By knowing the distance and apparent magnitudes at different wavelengths, one can compute absolute magnitudes and the total light output of these objects.
UFO Orbit computed the start and end heights of 16 Q2 Geminid meteors and their absolute magnitudes, captured between Dec 10 and 13 (see Figure 4).
Such estimates can be used to extend the visual lightcurves, and hence derive more accurate absolute magnitudes.
Different types of supernovae have different absolute magnitudes and rates of decline from maximum brightness.