Stars Retrieval

What term do scientists use to describe the brightness of a celestial object as seen from Earth?

• Luminosity

• Magnitude

• Apparent magnitude

• Light-year

__________________ is used to describe the actual brightness of a celestial object.

• Luminosity

• Magnitude

• Apparent magnitude

• A light-year

What term do scientists use to describe the unit of astronomical distance that light travels in 1 year?

• Luminosity

• Magnitude

• Apparent magnitude

• Light-year

Stars are composed of —

• solid rock.

• gases

• various liquids.

• solids, liquids, and gases.

Compared to other stars in the sky, the Sun appears brighter because it is

• closer

• smaller

• farther

• larger

A very bright star can seem dimmer because it is

• Close

• far away

• blue in color

• larger than other stars