Section 2Characteristics of stars

By Antonia James, Hannah Rohrborn,

Jada Staples

Characteristics used to classify stars include color, temperature ,size, composition, and brightness

• A stars absolute brightness is if it was the standard distance from the earth. temperature is based on the color of the star

• Blue or blue white is the hottest and red is the coolest

The brightness of a star depends upon both its size and atmosphere.

It depends on the size of the star and the stars temperature .

Astronomers use a unit called the light-year to measure between the stars.

• The distance of a light year is 9.5 million million kilometers remember that a light year is a unit of distance not time

Astronomers often use parallax to measure distance to a nearby stars.

The apparent movement when seen from a different position of a star

The End