What is the name for a body of gasses that are held together by gravity and produce light from nuclear fusion?

• nebula

• star

• galaxy

• nova

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

The measure of a star's brightness or luminosity is called what?

• magnitude

• supernova

• richter scale

• lumens

The brightness that a star appears to be from Earth is called what?

• apparent magnitude

• brightness

• absolute magnitude

• lumens

What is the name for how bright a star would appear if it were seen from a distance of 32.6 light years?

• apparent magnitude

• brightness

• absolute magnitude

• lumens

A unit of distance that measures how far light travels in one year.

• light year

• parallax

• magnitude

• nova

The apparent shift in the position of a star when viewed from different points of observation, to determine the distance a star is away from Earth.

• light year

• parallax

• magnitude

• nova

An imaginary sphere surrounding the Earth, where all stars are considered to be projected onto its inner surface, which is used to map their positions in the sky.

• globe

• parallax

• celestial sphere

• constellation

Stars that can always be seen in the night sky and never appear to go below the horizon level are called what?

• asterisms

• Circumpolar stars

• zodiac stars

• main sequence stars

Circumpolar stars circle in the night sky around which star?

• Polaris

• Vega

• Bettlejuice

• Rigel

Which circumpolar constellation can be seen closest to the north star?

• Ursa Major

• Canis Minor

• Orion

• Little dipper