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Discover LudwigThe phrase "absolute magnitude" is correct and usable in written English.
It is typically used in astronomy to describe the intrinsic brightness of a celestial object, such as a star, as it would be observed from a standard distance.
Example: "The absolute magnitude of the star allows astronomers to compare its brightness with other stars regardless of their distance from Earth."
Alternatives: "intrinsic brightness" or "true brightness".
Dictionary
absolute magnitude
noun
The intrinsic luminosity that a celestial body would have if viewed from a distance of 10 parsecs or 32.6 light years.
Exact(60)
But how to determine absolute magnitude?
The Sun's absolute magnitude is 4.8.
It has an absolute magnitude of 4.4 only, which means it's slightly brighter than that Sun (which has an absolute magnitude of 4.8 - bigger is dimmer with magnitudes).
Absolute magnitude estimation was used for making judgments.
Nova Persei, also called GK Persei, bright nova that attained an absolute magnitude of −9.2.
Engineers and hydrologists are likely to need the absolute magnitude of extreme events for design purposes.
On doing this, the absolute magnitude of the conductivity changes, but the wavelength response does not.
The vertical axis on the figure shows the absolute magnitude of the Supernova.
The Sun works out to have an absolute magnitude of 4.83.
There is a small peak near absolute magnitude +0.6, corresponding to the horizontal branch for Population II, and no stars as bright as absolute magnitude −5.
For instance, in electromagnetism the difference in electrical potentials is relevant but not its absolute magnitude.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com