This is the Stellar Evolution
Of a star in the Universe
A Nebula is the beginning
Of a star before its birth
The star names you will encounter
Are some basic different stages
In the evolution of a star
And all it's basic changes
I'm a Molecular Cloud
I'm a type of Nebula
I have a high density
And a very low temperature
This combination creates the gas
Molecular hydrogen
That's primarily what I'm made of
Along with cosmic dust within
When the force of gravity
Exceeds the outward push of the gas
The pressure is so great that I
Can't help it and start to collapse
Which is caused by a Shockwave from a near exploding star
Or when two molecular clouds collide
Now isn't that bizarre
When the gravity's too strong
I break apart into smaller clouds
Each cloud is a stars beginning
In which I am very proud
Protostars are the name
Of all the clouds that do break free
Let me introduce a Protostar
That was a part of me
Hello there I'm the beginning
Of any kind of star
Let me introduce myself to you
I am a Protostar
My core is not hot enough
For fusion to occur
To achieve that level of stardom
This process is a chore
The first thing I do when
I brake free from my molecular cloud
I start to spin until I form this disk
Around me, you see now
As the disk rotates I produce
A strong magnetic field
Pulling gas and dust into
My center core as I reveal
The Infalliing gas releases
A kinetic energy
Creating heat increasing the temperature
In the center of me
At this point, I can transform
Into a hydrogen-burning star
Which is when the nuclear fusion starts
In a Protostar
This is when I cross over
To Stage 3 Called T Tauri
We play our different roles
In the star formation see
This is the Stellar Evolution
Of a star in the Universe
A Nebula is the beginning
Of a star before its birth
The star names you will encounter
Are some basic different stages
In the evolution of a star
And all it's basic changes
I'm a T Tauri Star now
Also a Pre Main Sequence Star
My job's to clear away
The dust and gas and send it really far
My stellar winds create bipolar outflows
That does decrease my mass
Until I'm a main sequence star
My center burning nuclear gas
I'm a Main Sequence Star now
Just like the sun, you know
For billions of years, I will burn
Throughout my light show
Converting hydrogen to helium
Is how fusion exists
It wants to blow me apart
But it has a hard time doing this
Because of gravity of equal
Power pushing me in
I am able to stay burning
Since the fusion did begin
There are many different kinds of stars
Throughout the universe
Go learn about them all
Now you know how they are birthed
This is the Stellar Evolution
Of a star in the Universe
A Nebula is the beginning
Of a star before its birth
The star names you will encounter
Are some basic different stages
In the evolution of a star
And all it's basic changes
This is the Stellar Evolution
Of a star in the Universe
A Nebula is the beginning
Of a star before its birth
The star names you will encounter
Are some basic different stages
In the evolution of a star
And all it's basic changes