0
Galaxies
Galaxies are large systems of stars and interstellar matter, and they contain billions of stars. Our own galaxy, the Milky Way, has 200 to 400 billion stars, and there are over one billion known galaxies. Questions that have to do with galaxies in general and specific galaxies are perfect for this category!
2,392 Questions
Why would a planetary nebula look like a ring to every observer in the galaxy?
A simple way to think of it would be if you lay a doughnut flat on a table and measure the thickness from the outside edge to the hole. Let's say it's 2 inches thick. Then measure the distance across the entire doughnut on the right and left edges without touching the hole. The amount of dough there may be 5 inches thick when seen edge on. The same principle works for a shell of gas. The shell of gas in a planetary nebula reflects more light from the edges because you are seeing more gas. The center seems hollow because you are looking through less gas. No matter where you look from, when you look right into the center you see less reflected light than around the edges so it looks like a ring.
What is the biggest star discovered so far?
The biggest star discovered so far is UY Scuti, a red supergiant located in the constellation Scutum. It has a radius more than 1,700 times that of the sun, making it one of the largest known stars in the universe.
If you know how far away it is, and the angle that it subtends, you can tell its size. For example, if something is 100 meters away and it fills 10 milliradians, it's 100 * 0.01 = 1 meter across. (A milliradian is 1/1000 of a radian, and a radian is about 57 degrees.)
The size in your telescope is easy, and it's a simple optical calculation to figure out how large an angle it actually takes up. That is, so long as it's something that appears as an object, not just a point. So the method will work with a galaxy, but not a black hole.
The only part with uncertainty is how far away it is. The red shift of the light can tell you that. Everything in the universe is moving apart, and the farther away something is the faster it is moving, so the greater the red shift. This method has been calibrated in a number of ways, in particular by observing certain types of variable stars. So that part of the method is pretty solid, too.
No, stars are not capitalized unless they are part of a specific name or title.
Summary of distance to Andromeda by gregorio brillantes?
pakshet, wla din akong makitang summary neto. puro about astronomy nilalabas ng google. Please answer: Why did Ben suddenly feel lonely, tiny and helpless while he was standing alone on the bridge?
"He stands alone on the bridge, and he is suddenly lonely, the vast humming turning within him, waiting: for a streak of blue flame, a signal flare among the stars. Where and why … Thousands of years away by the speed of light, the other worlds… He recalls the view of the heavens through the port holes of the rocket, and the photographs of the galaxies, the whirlpooled suns in the book his father gave him one Christmas. The rocket, an atom wandering in the outer reaches of unknown space: to be lost and lovely forever in the starry night… He feels very tiny, only a boy, shrinking, helpless, standing between the dark river and the lights in the sky."
How do you get koopa kid in ssbm?
Koopa is not a playable character in Super Smash Bros Melee and you cannot unlock him.
If you are looking for the Koopa trophy, you can get that either through adventure mode or through the trophy machine.
Is there life on any other planet aside earth?
So far, with our limited technology - we have yet to discover life on another planet. However - there are billions of galaxies in the Universe - with potentially trillions of planets orbiting around suns. There is certainly the possibility of life on other planets. The question is - whether that life is restricted to the chemical make-up of life here - or does it consist of elements we've not discovered yet.
On Earth, most life forms depend on the existence of Oxygen and sunlight. On other planets - there may be alternatives. We simply lack the technology to confirm or deny that possibility. Take the Voyager probes that were launched in 1977. They have only just recently left our solar system !
There could be literally billions of life-forms out there - maybe even more intelligent than ourselves. It's possible they know of our existence, but find us as primitive, as we find bacteria primitive here !
When did galaxies start forming?
Around 750 million years after the big bang. The oldest galaxy known is IOK-1 [See related link]
How far away is betelgeuse from the sun?
Betelgeuse's distance from Earth according to various well-respected astronomical agencies is between 310 and 640 light years. Taking an average of the ten measurements that I've dug out the average is 480 light years.
As I'm writing this from England and the distance to Betelgeuse is taken from the Equator, it's average distance is actually 480 light years PLUS 3,521miles!
Dr. Peter
What does an eliptical galaxy look like?
A round..... swirly.... thing?
It is a large, central ball, with a round ring circling it, usually with distinct arms. Do google image search. They are hard to do just with words.
There are an estimated 1011 galaxies in the observable Universe. The entire Universe is much bigger than the observable Universe. It may be infinitely bigger, but it is not currently known whether this is the case.
How many stars are there in all galaxies in the whole universe?
somewhere. Scientists believe they are all in Lindsey Lohan's vagina, but it is unknown due to its vast emptiness
What evidence do astronomers have that supports the idea that the galaxies are moving away from us?
Observations through telescopes, red shift and several other recordings proves this.
Is the galaxy farther than the universe?
Pretty close, you're living in one right now - the Milky way galaxy. The Andromeda Galaxy is closest to the Milky Way and is about 2.5 light years away. That means it takes the light from it 2.5 years to reach us. The distance in miles is about: 14,696,249,535,466. Some galaxies are billions of light years away from us which is a humbling amount of distance to conceive.
star is made up of hot gases
star is made up up of hot gases
What is The Galactic Federation of Light?
Its Real or Right, but if you have any sense don't get too involved. Its becoming a cult. and a really dangerous one at that.
People are getting striped off all common sense. they tell you to think outta the box to only put you back in a other box. they feed you with all this stuff of how love is the only emotion you need and that if you follow what they say you will ascend to the 5th dimension. they make you feel euphoric and tell you not to doubt them otherwise it will keep you in the dark with the dark. they give people titles such as.. light workers and star seeds because you have been sent from other planets and reincarnated to be a earth human to help bring back Gaia to its forma glory and stop suffering and take down the cable and evil reptilian race which rules the world. and when the ET's come to be our saviour the ones who haven't already ascended. will usually become ground crew to help with the introducing of the ET's to humanity. and its all about raising vibrations of the planet and being beings of light. fair enough if some of these people could practice what they preach. You can not reason with a person who is too deep into it. no matter what you say you are wrong and they are right. and they either tell you, your negative, in fear or a dark worker. while attacking you nastier for having a different point of view and they always usually end their messages with love and light afterwards. these people are so brainwashed they don't even seem to read the txt on messages right and make up stuff you haven't said. they are mental its like dealing with something evil beyond evil with some of them. i just fear that they is gonna be a huge mass suicide world wide with them when they ascend or worse still they are gonna turn on other people thanks to all these channellers.
Anyone out there reading this please be careful. remember real angels help nurture all ur gifts. fake ones strip humans of their humaneness, and control you with a promise of something if you follow.
Will the SIMBAD database have all the classifications of 100 billion galaxies?
No. As of 2013 HyperLeda contains a database of about 3 million objects, about half of which are known to be galaxies.
How long it takes sunlight to reach earth?
The moon is roughly 250,000 miles from Earth and light travels at about 186,000 miles per second, so it would take about 1.30 seconds for the moonlight to reach Earth.
Why aren't all the galaxy's the same?
No. Galaxies vary greatly in size, mass, shape, and number of stars.
