How many different types of galaxies are there?
Leah AbbateThere are three main types of galaxies: elliptical, spiral, and irregular.
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Elena AntonovaGalaxies can be classified into three main types: spiral, elliptical, and irregular. Spiral galaxies are shaped like a spiral with arms that wind outward; elliptical galaxies are oval-shaped; and irregular galaxies are more chaotic and asymmetrical in appearance.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
- What is the parallax formula?
- If stars can form from the explosion of other stars, then why doesn't all the matter in the universe collect together continuously and explode?
- How does parallax change as the distance to a star increases?
- Why do astronomers try to find the distance to stars using parallax?
- What is unique about Andromeda's nucleus?
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