Star Brightness, Space Objects, & Eclipses

Which of the following objects does NOT orbit directly around the sun?

• planets

• comets

• moons

• all of the above

Study Figure 25-1. Suppose you are an astronaut on the side of the moon facing Earth during a total lunar eclipse. Which would you see as you look toward Earth?

• Earth illuminated by reflected moonlight.

• The normal view; there is always reflected light from the moon’s surface.

• You could not see the sun because Earth blocks its light.

• The light from the sun behind Earth would be blinding.

Tags

NGSS.MS-ESS1-1

The distance between stars is typically measured in

• light-years

• liometers

• astronomical units

• miles

Astronomers classify stars according to their

• distance from Earth.

• color, size, and absolute brightness.

• age and parallax.

• all of the above

The apparent brightness of a star

• depends on the position from which it is viewed.

• can be calculated from its absolute brightness and mass.

• is greater as distance from the sun increases.

• is a measure of its light viewed from any position.

What do you call a scientist who studies objects in space?

• meteorologist

• astronomer

• astronaut

Tags

NGSS.MS-ESS1-3

How bright a star looks to observers on Earth is its....

• true brightness

• apparent brightness

Tags

NGSS.5-ESS1-1

The actual amount of energy a star gives off is its...

• true brightness

• apparent brightness

Our solar system is in which galaxy?

• The Clouds of Magellan

• Andromeda

• The Milky Way

• Betelguese

Tags

NGSS.MS-ESS1-2

What is the name of Earth's star?

• Antares

• Betelguese

• Polaris

• the Sun