It's what a star forming nebula is.
... it's a nebula... which forms stars.
This is why protostars lie where they lie on the HR diagram.
because they don't fuse hydrogen into helium yet. i gave up on the proper format for jeopardy answers
What is the Sun?
It's why red giants are called red giants.
See, this isn't a simple question and therefore there is no simple answer. This really deserves a spot on the 500 questions, as not even the greatest philosophers of human history dare even ask this questions, let alone truly comprehend it.
Demonstrate/depict/verbalize correctly where star-forming nebulae lie on the H-R diagram.
it's not on there lol
Demonstrate/depict/verbalize correctly where protostars lie on the H-R diagram.
it's not on there
Demonstrate/depict/verbalize correctly where main sequence stars lie on the H-R diagram.
i'm too lazy to write it out we all know where it is
Demonstrate/depict/verbalize correctly where red giants lie on the H-R diagram.
It's the example of white dwarf we gave.
What is Sirius B?
What is the Orion Nebula?
What is 8 light minutes, or 93,000,000 miles, or whatever you say so long as it's accurate?
It's the example of a red giant we gave.
Demonstrate/depict/verbalize correctly where white dwarfs lie on the H-R diagram.
bottom left
It's the example we gave for protostars.
What is L1527?
It's the diameter of the main-sequence star closest to us.
865,000-ish miles or js give an accurate number idc i give up
It's a specific thing that the brightness of red giants be used to measure.
What are distances between galaxies?
It's a specific thing the luminosity of white dwarfs can be used to measure.
It's the distance from the Earth the example we gave is from Earth, in lightyears.
What is 1,344 light years away?
It's how many years a typical protostar of typical size spends collapsing due to its own gravity.
How long is 500,000 years?
It's how main-sequence stars maintain a stable volume.
When its pressure balances out with its gravitational force, causing it to maintain a stable volume. Apparently.
List two examples of red supergiants.
What are Antares and Betelgeuse or whatever yall decide to come up with that's factually accurate to today's modern world-view?
It's what the example we gave orbits.