Star Formation Crossword

This atom has one proton.
This is a positive subatomic particle.
This subatomic particle has no charge.
This subatomic particle has a negative charge.
The rise and fall of the ocean water caused by the moon.
Kepler's first law describes this shape of orbit.
Going around something else is called an ______.
Large round pits on the moon.
The brightness of a star compared to another star.
The brightness of a star seen from Earth.
Two protons combine to form this element.
This is how heat and light energy are formed in a star.
A star is mainly made out of ________.
A star's color is determined by its ______.
The smallest unit of matter is an ____.
Our solar system stays in tact because of the sun's _______ _____.
The hottest stars are this color.
The cooler (temp) stars are this color.
There this many planets.
1230 has this order of magnitude
Scientific notation is written in powers of ____.
Another name for the sun is