Astronomy Questions?

Question

1. Are all the stars in a Constellation the same distance from earth? Explain.
2. What is a Red Giant?
3. What is a Galaxy?

This isn't my homework. I've been looking for these answers for 2 hours. I need them because I'm testing for this astronomy class I want to take, and I have the entrance test tomorrow. They gave us a paper saying what we need to know for the test, and these are the three questions I couldn't find answers to.

Answer 1

1. No. Stars in constellations just apear to be in a constellation. when we look into the sky we actually look on other arms of our own galaxy where some stars are distant other stars are nearby. They just appear to belong to each other because we get the impression from our point of view.
However all stars we see in constellations are within our own galaxy, the milky way

2. A red giant is a star who ran out of his primary fusion elements and made an inner change to burn other elements at different temperatures in its core.. this leads to changes in its density/pressure/gravitation relatio in a way that they blew up and appear as giantic stars with a likewise red appearance.

3. a galaxy is a hughe cloud of stars circulating a center. The milky way for example is a galaxy, but its hard to see since we are in it.. its approx. 90000 lightyears in diameter and rotates once every 200 to 260 mio. years. The solar system is part of the milky way with the sun located on the inner side of one of the galaxies spiral arms. You may find photos of other galaxies on the net to get an imagination of how a galaxy looks like.

Answer 2

1. no, they are all different distances away, but thier size makes it look like they may be closer or farther.

2. A red giant is a star classification

3. A galaxy is a clump of stars, planets and other astronomical things

Answer 3

1. Go to a search engine.
2. Type in "define", without the parentheses, and the word or group of words you want defined.
3. Select one or more of the sites that came up
4. Read the answer.
5. Read the answer again.
6. Decide if you are satisfied with this answer.
7. Repeat for the next word.

Answer 4

they appear that way because of the way we look at it.the red super giant is one of the stages of the star which means the stars have a life cycle and the sun is a red giant. A galaxy is a group of star we are in the milky way galaxy.

Answer 5

Yay! i'm answering the comparable question as like 10 good contributors. That makes me experience specific =). Yeah, I surely hate the 2012 questions, and ones that must be replied with wikipedia instead of filling up yahoo solutions with bogus questions. by ability of far nevertheless, the worst questions i come across are ones that are extremely copied and pasted good from the worksheet or e book or in spite of this is that their homework is and then to good it off, they point out something a pair of advantages for the 1st answer or something. additionally i won't have the capacity to stand copied and pasted solutions from web content that require no intuitive questioning in besides. incredibly while they do no longer even cite the positioning or merely state "Yahoo seek" (in spite of the reality that its fairly unhappy that they only hunted for it and have been given the respond while the questioner could have merely carried out that themselves). On a very good be conscious, I do exactly like the quite a few genuine questions that are no longer merely homework help or something yet essentially a individual that needs to extend their information correct to the worldwide around them. i like those questions and pass out of my thank you to respond to them. EDIT: Oh yeah, and questions interior the incorrect area, somebody merely asked if unlawful extraterrestrial beings exist interior the astronomy area. no longer merely is that a stupid question yet its interior the incorrect area...

Answer 6

Do you realize that three minutes on google would have answered your questions? Or maybe you could have opened your book? Why expect us to answer them for you? Do you realize that many of us actually TEACH astronomy, and your teacher/prof/TA might be on here?

Here's a hint for tricking people into doing your homework for you in the future. Take the numbers off the problems, rephrase them so it sounds like you thought of them yourself, and ask each a few hours apart so they don't all land on the front page at once.

Yeah, I really don't believe you couldn't find a definition of 'galaxy' anywhere. Did you try wikipedia?

Answer 7

Google Nasa

Answer 8

1. No, they only appear that way based on our viewpoint.
2. A star in one of its phases.
3. A group of stars such as our own milkey way.