what are the two most abundant elements in the sun?
what is the differential rotation in reference to the sun?
what causes Granulation in the sun?
ho do we know that sunspots are magnetic phenomena?are the hotter or cooler than their surroundings?
what is the he proton-proton chain>why does it need a high temperature?
what is absolute visual magnitude?
in a binary system,would the more massive star be closer to the center of mass?farther?at the center of mass?
what is a white dwarf?a super star?a main sequence star?what type is our Sun?
why are proto stars different to observe?
whats special about the great nebula in orion?
why does the main sequence have a limit at the lower end?
where are stars born?
--------------it would really help me if can answer any of the questions listed, i have tons of hw and i cant find these answers.....thanks so much
2007-11-04 13:35:55 · 4 answers · asked by Allie 1 in Science & Mathematics ➔ Astronomy & Space
All of the answers are in your textbook or online (wikipedia is pretty good for simple data).
Elements - that one is easy, the most common ones are the first elements on the periodic table.
Differential rotation - you have to define that better, not sure what you mean by "differential rotation in reference to the sun".
Granulation - if you look up "sun" on wikipedia, look for "photosphere"
Sunspots - same location on wikipedia, or search for "sun spots"
Proton-proton chain - wikipedia again, search on "proton-proton chain"
Absolute magnitude - wikipedia again (its pretty good at explaining this concept)
Binary systems - that is more common sense. In any system of 2 objects, the centre of mass is closer to the more massive object (think of a see-saw with a little kid and a big kid on it - the only way it will go up and down is if the little kid is farther from the pivot point and the big kid is closer)
White dwarf, main sequence - wikipedia again (not sure what you mean by a "super star", there is no such category of stars). And if you go to "sun" you will see what our sun is in the first paragraph.
Proto stars - the word "proto" means "still forming", so if a star isn't fully formed (meaning it hasn't started fusing hydrogen at its core yet) it isn't shining yet. Rather hard to see a star that isn't shining yet.
Orion Nebula - wikipedia again (its actually a fascinating object to learn about)
Main Sequence - either HR Diagram or Main Sequence on wikipedia will help.
Stars are born - I'll give you this one, they are born in nebulas of gas and dust that begin to collapse due to internal gravity or turbulence caused by shock waves (from supernova or motion through denser areas of space).
The whole point of homework is to learn how to learn, not just to get the answers. Believe me, it will make a real difference once you're in the working world to be able to find answers for yourself.
2007-11-04 13:49:20 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Homework Alert!!!
2007-11-04 13:39:11 · answer #2 · answered by B. 7 · 0⤊ 0⤋
I am just answering this because i want my friend to be on my profile and see it because she LOVES space.. and she mite be able to answer it
2007-11-04 13:40:43 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Most of these are in wikipedia.
1. http://en.wikipedia.org/wiki/Sun (2nd paragraph)
2. http://en.wikipedia.org/wiki/Solar_rotation
3. http://en.wikipedia.org/wiki/Granule_%28solar_physics%29
4. http://en.wikipedia.org/wiki/Sunspot
5. http://en.wikipedia.org/wiki/Proton-proton_chain_reaction
etc.
2007-11-04 13:49:02 · answer #4 · answered by Raymond 7 · 0⤊ 0⤋