One correction: red dwarves with ZAMS spectral class later than M3 do not expand, for they are entirely convective. They simply tend to heat up: some Gyr (gigayears, i.e. billions of years) to become M3 from M4, dozens of Gyr to become K9, some 100 to 200 Gyr will render it as K4-6. Type G would be hit in the next 300 Gyr, F is a matter of another 300 Gyr. And finally it'll become a blue (sub)dwarf, consisting of far more helium than hydrogen. M5V - M0V - K4V - G8V - F8V - A9V - B2VIp. Then, exhausting its last hydrogen, it'll become an entirely helium white dwarf DB3. M0-M3V stars, however, have radiative zone in their cores, so they can become red giants of the latest classes (M8-9 or even earlier L), when their cores exhaust hydrogen, and fusion recedes into a shell on the core's surface. They haven't enough mass to launch a helium fusion reaction, so they do not have pulses and any red clumps. M0V - K3V - K9IV - M8III - DO1 + P (the latter being a planetary nebula).
What is the mass of the star? Is the size of the star shown in radius or diameter? There is a mistake when a star is born, it forms gigantic, and then shrinks until thermonuclear reactions occur.
@thomasvallentimjoao The difference is the Radius is the segment that connects the center of the circle and any point on the circle itself. A diameter is a segment that connects two points of a circle and passes through its center.
An M5V star has between 0.14-0.20 solar masses. A star of this mass will shrink and become a blue dwarf. A red dwarf must have at least 0.25 solar masses for a red giant phase, otherwise this red dwarf will shrink.
@@stellaf01 blue dwarves are the in-between phase of red and white dwarves, where the star is shrinking but still burning hydrogen. hence its higher temperature
Red dwarfs do not expand, They just die out, And it is not a blue dwarf, It becomes a white dwarf, And then trillions of years it becomes it a black dwarf. Edit: Red dwarfs do become blue dwarfs and they become White dwarfs So sorry about the mistake 😞
Red Dwarfs don’t become Red Giants They definitely don’t become Orange Dwarfs and they certainly don’t turn back into Red Dwarfs after there White Dwarf phase
*M TYPE STARS SHRINK NOT EXPANDING!!*
Yeah he is sooooo dumb!
@@user-xr6xi5ym6e *shrink
@@user-xr6xi5ym6e They only become orange giants if they have a mass of over 0.3 suns
@@user-xr6xi5ym6ehave you lost your mind, they do shrink
The yellow giant is smaller than Sun?
One correction: red dwarves with ZAMS spectral class later than M3 do not expand, for they are entirely convective. They simply tend to heat up: some Gyr (gigayears, i.e. billions of years) to become M3 from M4, dozens of Gyr to become K9, some 100 to 200 Gyr will render it as K4-6. Type G would be hit in the next 300 Gyr, F is a matter of another 300 Gyr. And finally it'll become a blue (sub)dwarf, consisting of far more helium than hydrogen. M5V - M0V - K4V - G8V - F8V - A9V - B2VIp. Then, exhausting its last hydrogen, it'll become an entirely helium white dwarf DB3.
M0-M3V stars, however, have radiative zone in their cores, so they can become red giants of the latest classes (M8-9 or even earlier L), when their cores exhaust hydrogen, and fusion recedes into a shell on the core's surface. They haven't enough mass to launch a helium fusion reaction, so they do not have pulses and any red clumps. M0V - K3V - K9IV - M8III - DO1 + P (the latter being a planetary nebula).
so M7V can become red giant while M1V can't?
@@ArwinaAndArtola no, the other way around. M1 can become a (small) giant, M7 can't.
@@ldubt4494 o h
@@ldubt4494 wait what if this red dwarf was an M1?
What is the mass of the star? Is the size of the star shown in radius or diameter? There is a mistake when a star is born, it forms gigantic, and then shrinks until thermonuclear reactions occur.
@thomasvallentimjoao The difference is the Radius is the segment that connects the center of the circle and any point on the circle itself. A diameter is a segment that connects two points of a circle and passes through its center.
@thomasvallentimjoaodiameter is twice of radius
An M5V star has between 0.14-0.20 solar masses. A star of this mass will shrink and become a blue dwarf.
A red dwarf must have at least 0.25 solar masses for a red giant phase, otherwise this red dwarf will shrink.
White not blue
@@stellaf01 blue dwarves are the in-between phase of red and white dwarves, where the star is shrinking but still burning hydrogen. hence its higher temperature
Red dwarfs do not expand, They just die out, And it is not a blue dwarf, It becomes a white dwarf, And then trillions of years it becomes it a black dwarf.
Edit: Red dwarfs do become blue dwarfs and they become White dwarfs
So sorry about the mistake 😞
Yeah
M5V star like proxima centauri have mass less than 0.25 solar mass, so it will shrink into a blue dwarf
Why do you get M types wrong every single video THEY SHRINK NOT EXPAND DO YOU EVEN READ YOUR COMMENTD
pls don't rage the people don't think good today
@@ArwinaAndArtola ok
The expand when the mass is more than 0.25 solar mass
who tf tought you that M type stars turn into yellow giants? they shrink to a blue dwarf
IKR tho higher mass can turn into RED giants
@@sup3rlu1gi does that apply to M dwarfs too?
@@DoNotChooseBlank yes but only the higher masses of them
at least to my knowledge
from what ik, .25 suns is the minimum mass for that
let me guess that you got this information from wikipeda
*Why You Get M Type Stars Wrong Every Video?* *YOU WILL BE ARRESTED FOR 100 YEARS IF YOU DO A NEW VIDEO!*
M type star is took 1,000,000,000,000yrs to end the life of star
Red Dwarfs don’t become Red Giants
They definitely don’t become Orange Dwarfs
and they certainly don’t turn back into Red Dwarfs after there White Dwarf phase
2:18 569BYFB: M-Type Star (Red-Giant Star)
2:50 819BYFN: Supernova-Explosion
This red dwarf strange
this red dwarf too op, so some deity or smth had to nerf it
Thats nice but m type stars dont expand they just hest up Luminousity & shrink
true
those above .25 solar masses can
can expand i mean
I mean no one knows how live of red dwarfs end
@@nikodemjazdzewski2067 true, but that is the prediction, also the video doesnt match with our current understanding of stars
What does MYFB mean
Million years from now
Million years from birth
@@user-xr6xi5ym6ecorrect
You should read your comments they help
very good
Aaaa