why do canstellations do not change their formation/ position in the sky even if they travel in huge diastnce across the galaxy?
- ShalloWhaleLv 62 months ago
They do, but since the subject stars are many light years away, their movements seem miniscule, at least in our short human lifetimes.
- robertoLv 62 months ago
dey far awey
- 2 months ago
Dear god, you're spelling is appalling. Even the people who answer this question are bad spellers. How? You literally have a spell checker.
Regardless, I am here to answer your question.
The earth rotates around its axis while orbiting the sun, which gives us days and years. Throughout these years, the stars DO move across the galaxy, but you have to keep in mind we ALSO live in this galaxy travelling WITH the stars. So the stars do move in the galaxy, we just move with them. That's why the constellations don't change.
- Bulldog reduxLv 72 months ago
I think you meant to write "cancellations" rather than "canstellations." Or maybe "constellations."
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- ZheiaLv 62 months ago
They do change over a long time, due to gravitational influences of other stars, ejection from clusters, nearby supernovae, and black holes. Also, the solar system is moving through space so stars will appear to move over time.
- ANDYLv 52 months ago
Constellations are how we look at them from Earth. They look different from one another, so we gave them names. But what are actually those stars that "form" the constellations and make them look like how we see them? If you go to other planets in other solar systems, you'd find out that those stars are not there one next to the other to form a constellation. They are stars so far apart from one another both in distances away from us and also nearer to us. So it's an optical illusion to see Orion or Ursa major as they present themselves to our eyes. (Sideways they are stars that give no indication whatsoever of being what we see from here.)
Yet, those stars do move in space, just like our sun, and are orbiting the center of our galaxy. In time, however, their configuration would not stay as they are now. A slight difference would take place and their aspect will change and our future generations will see them a bit different from what they are at present.
- 2 months ago
Actually, they do. But, the stars that create the constellations are so far away from us - and, from each other in many cases - that their positions as viewed from Earth change very little over great lengths of time.
Here's how the Big Dipper would change (and has changed) over the course of 200,000 years: https://www.popularmechanics.com/space/deep-space/...
- daniel gLv 72 months ago
For their distance, that movement is such an insignificant part of a tiny piece of an arc second.
- Roger KLv 72 months ago
The stars in constellations do change positions constantly. However, for us on earth, the changes are so extremely tiny that they appear to not move at all. In 100 years, the changes would barely be noticeable, but in 100,000 years, things like the big dipper will not look anything like it does now.
- 2 months ago
I'm assuming the "they" you're talking about is an astronaut or a probe. The fact is, the stars that form those constellations are so far away that you would have to move an absurd distance to see any visible change in the constellation.