Vocab
A large ball of hot, glowing gases (mostly hydrogen and helium) that produces energy through nuclear fusion
What is a star?
The small, dense core left behind after a planetary nebula;it no Longer produces energy
What is a White Dwarf?
The collapsed core of a very massive star whose gravity is so strong that not even light can escape it is A…
BLACK HOLE !
Our Sun is releasing this type of energy
What is Nuclear Energy !
This determines whether the star becomes a red giant or a red supergiant
What is MASS !
A huge cloud of gas and dust in space where new stars can form or the remains of dead ones collect
What is a Nebula?
A small, cool, dim star, with a long lifespan that burns hydrogen very SLOWLY
What is a Red Dwarf?
An example of this is The Sun
A STAR !
A way we can determine which gases are in the sun is determined by doing this
What is looking at the wavelengths are missing in the visible spectrum (notes on electromagnetic spectrum) !
After a sun like star forms this is the stage it turns into next
What is a RED GIANT !
The stage in a stars life when it steadily fuses hydrogen into helium in its core
Main Sequence
A very massive star that have expanded later in it’s life, much larger than a Red Giant is a…
A Super Giant!!
Most stars, including The Sun, are in the phase….
MAIN SEQUENCE !
Every Element as a gas absorbs wavelengths on the visible spectrum (black lines we see). Each element is unique and has different wavelengths missing. We compare known gas sample with what we see in space (The black lines match the known gas sample wavelengths and the star wavelengths)
What is the process for determining what gases are in a star !
When the hydrogen is used up the star will explode and helium will fuse together to form another element which depends on the stars mass. These are two types of LOW MASS stars
What are Red Giants (large stars that are cool/bright and will SHRINK and Contract) becoming WHITE DWARFS (which slowly die) as Black DWARFS (no more light). !
A large cool, bright star that forms when a man in sequence star uses up its hydrogen fuel and expands
A Massive explosion (KAPOW) that occurs when a large star runs out of fuel and collapses violently is a…
Super Nova !!
Planetary Nebula !
A glowing shell of gas ejected from a red giant star
Hydrogen (H) and Helium (He)
The Sun contains these elements !
These are HIGH MASS STARS (determined by MAS)
What are SUPERGIANTS (VERY BRIGHT) which can be hot or cool and when fuel is consumed they will explode into SUPERNOVA and will contract into neutron star or black hole !
A glowing shell of gas ejected from a red giant star as it nears the end of its life
What is a Planetary Nebula?
The extremely dense core made entirely out of neutrons, left after a supernova is a…
Neutron Star !
A Neutron Star !
What is the extremely dense core left after a supernova, made almost entirely of neutrons?
Hydrogen (H) + Hydrogen (H) produces Helium and Energy and a neutron AND is happening on the sun
What is NUCLEAR FUSION !
A version of an element that has the same # of of protons but a different # of neutrons
What are Isotopes !