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6. The brightness of the star is described in terms of magnitude and luminously​

Sagot :

Twinsdaughter2007idn

Answer:

A glance at the night sky above Earth shows that some stars are much brighter than others. However, the brightness of a star depends on its composition and how far it is from the planet.

Astronomers define star brightness in terms of apparent magnitude — how bright the star appears from Earth — and absolute magnitude — how bright the star appears at a standard distance of 32.6 light-years, or 10 parsecs. (A light-year is the distance light travels in one year — about 6 trillion miles, or 10 trillion kilometers.) Astronomers also measure luminosity — the amount of energy (light) that a star emits from its surface.

Measuring star brightness is an ancient idea, but today astronomers use more precise tools to obtain the calculation.

Explanation:

LeviAckkkidn

Answer:

Yes

Explanation:

Astronomers define star brightness in terms of apparent magnitude (how bright the star appears from Earth) and absolute magnitude (how bright the star appears at a standard distance of 32.6 light-years, or 10 parsecs).