How Stars Form
What helps a star join the main sequence?
A new energy source
What percent of a stars life do they spend on the Main Sequence
About 90%
Low mass and medium stars that can be eight times as massive as the sun are called what?
white dwarfs
High Mass Stars grow into what?
Super Giants
What is the nearest neighbor planet to Earth?
The Moon
What are stars made of?
Gas and dust
A red main sequence star with a surface temperature of about 3500 K can stay on the main sequence for how long?
What is a dying star surrounded by?
A glowing cloud of gas
A explosion that is so violent that a dying star becomes to brilliant than the entire galaxy is called what?
A supernova
What is the largest and most massive planet in our solar system
Jupiter
Molecular Clouds can be as big or bigger that what?
Our Solar System
Small cool stars that are long lived
A cloud that is one of the firsts found looked like planets viewed through a telescope is called what?
Supernova's can produce enough energy to create elements heavier than what?
Iron
What are low flat plains formed by ancient lunar lava flows?
Maria
What is a large cloud of gas and dust?
Nebula
About 6000 K
What glows faintly from leftover thermal energy?
White Dwarfs
Heavier elements in our solar system and atoms in our body are created by what?
Supernova's
Planets that are made of hydrogen and helium are typically called what?
Where do the stars form in our solar system?
The desest regions of nebulae
Typically blue stars are about what brightness?
About 300,000 times brighter than the sun
How long does it take for a white dwarf to cool down?
about 20 billion year
A dense remnant of a high mass that has exploded as a supernova is called what?
Neutron Star
How long would it take if there were a road to the moon?
About 6 months driving at 55mph