star
Stellar Evolution
120

What is a star?

a massive celestial body that is made of gas and emits light and electromagnet energy.

120

How many years can stars generally live?

They can live for billions of years

210

How are stars made?

it is made by Nuclear fusion

210

What is luminosity?

How much energy is released per second.

300

What are they made of? 

They are made up of hydrogen, helium, carbon, oxygen, and nitrogen.

300

what direction is the hottest to the coolest?

Left to Right

400

Is the highest luminescence on the _ and the lowest is on the_ 

The highest luminescence on the top and the lowest is on the bottom

500

A patter on a star exists by correlating_

temperature and luminosity