Astronomy
The scientific study of celestial bodies. Find questions on Constellations, Planets and more.
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0.98 newtons (3.53 ounces)
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Ireland isn't that big a country, but the ISS isn't that high up; you will need to be more specific about the location....
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Each element has a characteristic "fingerprint" of absorption/emission lines, and the pattern of lines tells scientists which...
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Polaris' 'declination' is 89° 18' 43" . That measurement is just like north latitude, but it's on the celestial sphere instead...
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Yes they do. But they're so far away that you can't see the effects of their motion over the duration of a human lifetime.
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About 23.5 degrees in the opposite hemisphere from where you are. If you are in the northern hemisphere, the winter solstice...
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No. No material object can travel at the speed of light. Does the Milky Way galaxy move at all? An excellent, and perhaps...
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It is possible in theory, but one has to wonder why. Asteroids hit Earth every year, most, if not all disintegrate in the...
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The sky is divided into 88 constellations.
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They use light years because it is a convenient measurement. You get more manageable figures that way. The star Alpha Centauri...
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A Ptolemaic view of the Universe has the Earth at it's centre. The Copernican centres on the sun. Both however have been found...
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As you may have learned, the moon doesn't have any air around it. The air that surrounds our earth acts as a nice blanket to keep...
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Astronomers study the sky, space, solar system, and all of the objects in it. Galileo is considered to be the Father of Modern...
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Edmund Halley. He even had a comet named after him, the Halley Comet.
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Those are the two solstices. The sun appears to pass the southern one around December 21 each year, and the northern one around...
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Basically when there is no more fuel - when all, or most of, the lighter elements are used up.
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Because the Earth is spinning at a rate of 15 degrees per hour.
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There are several aspects of the Big Bang Theory supported by observed phenomena: The current universe is presumed to have a...
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Aether is the right answer; Latin for aether is aether!
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a) Aphelion, axis, aurora, asteroid b) Black Hole, binary star, c) Cepheid, clusters, comet, constellation d) Day, density,...
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A white dwarf, also called a degenerate dwarf, is a small stellar remnant composed mostly of electron-degenerate matter. Because...
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The actual presence of the gas cloud's contents will absorb certain wavelengths of Light, preventing the passage of certain...
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Physics applied, sure, but not the physics we are acquainted with. There would be a wholly different set of rules that applied...
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The age of the Solar System is determined through the radiometric dating of heavy elements such as uranium. Measurement of...
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What's the difference between asteroids, meteoroids, meteors, and meteorites? Many people confuse them and use the terms...
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The moon went behind the shadow of the Earth.
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Two highs and two lows in (24 hours and about 52 minutes), on the average. Some locations experience only one high and one low...
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You would be a Geologist,
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Probably faster: The Moon has been slowing down Earth's rotation for quite a while.
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1.- traslation: The moon is orbiting the earth 2. rotation : It is also rotating around its own axis. The curious (but also...
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Certainly not in our solar system. If such a creature exists in some other system it hasn't been discovered yet.
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Yes. Ever star rises every day, about 4 minutes earlier each day. Sometimes they are rising about the same time that the Sun...
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1 parsec = 3.2616 light-years (rounded) 1 mega-parsec = 3,261,600 light-years (rounded) 5 mega-parsecs = 16,308,000 light-years...
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No. Heat will go from hotter to colder objects, not the other way round - and the Earth's core is quite a bit hotter than the...
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Lunar EclipseA lunar eclipse is when the Earth comes between the Sun and the Moon causing a shadow of Earth on the Moon. The...
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The distance between Venus and Earth varies from 38 million kilometres (23.7 million miles, 0.254 AU) at it's closest point to...
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A light year is a measure of distance, or the distance a particle of light will travel through a pure vacuum in one Earth year. ...
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If it were near enough, yes. But then we all would be incinerated. If the star was really far away, then we would eventually get...
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There are several theories, but the most one people think is the best is that very early in the history of the solar system a...
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Blue Giants are the hottest.
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Assuming this is an Astronomy question, rather than an Astrology one, the term 'heavenly bodies' could refer to a number of...
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Night and day are the same length of time. The sun is at declination zero.
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Cryogenics is the science of study of materials at extremely low temperatures, not normally found in nature. as such it is a pure...
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After a planetary nebula the oxygen in the middle will make it turn into a blackhole or neutron star.
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It could very well be the mound in the middle of my back yard. When the grass is in good condition, you can't even see the...
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An object that weighs 1 pound on Earth weighs about 2pounds 8.6ounces on Jupiter. An object that weighs 1 pound on Jupiter...
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Planets and Stars are big and they both are part of our Solar System
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The gravitational force is a very weak one. Actually we only feel earth's gravitational field because the earth's mass is huge....
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AnswerNebulaA giant molecular cloud is a form of nebula. Small numbers of stars forming from the same gas cloud are usually open...
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The time of sunrise and sunset is very dependent on the precise location and the date in question. Please re-post your question...
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Apart from meters and kilometers, in Astronomy the following units are often used: Astronomical unit, the mean Sun-Earth...
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It's an example of a Spiral Galaxy.
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It is a telescope with a mount that has a GoTo system in it. It is like a small computer that you put in what object you want to...
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A tiny fraction. Light travels at 300,000 km PER SECOND, so 384,403 km (the approximate mean distance between the Earth and the...
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Comet Elenin (C/2010 X1) was first discovered on December 10th by Leonid Elenin. I have not yet seen detailed descriptions of its...
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That would depend on the speed. With current technology, several years.
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Quarinid,Lyrid,Geminid,Beta Aqaurid
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The remaining gases after the claus reaction contaning (apart from combustible gases, also consists of H2S, H2, CO, CS2, SO2, and...
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everything will eventually grow cold once the heat has dissapated into the entire space of the univers. This is called the big...
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The circle has no beginning, nor ending.
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Einstein says that he could prove the effect of gravitational lensing by looking at the moon during a solar eclipse and you will...
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An engine with 2 pistons per cylinder is considered one of (if not the) the highest power densities. it is currently under...
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No, do you really think that would happen? A lunar eclipse is when the light of the full moon is completely covered by earth's...
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Sir Edmond Halley - of the comet fame - was a British scientist who made a number inventions, one of which was the metal coil...
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It depends on, among other things, the length of time, the medium the human is in, what they are wearing, and their conditioning....
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Yes. Since it is smaller than most other stars, it uses less energy. Answer That's true in a way, but stars don't really...
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A meteor is a type of meteoroid that impacts earths suface
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Mostly, nothing. The Earth's spin makes it like an enormous gyroscope, and it is quite stable. The Earth's axis does wobble, a...
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The earth always is turning and when it turnes moving us away from the sun it causes night, then when we get back to the sun it...
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No. Or to be more precise, it doesn't affect it in any unusual way; it has the same effect on the tides that the moon always has.
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Particles in an accelerator such as the Large Hadron Collider. Or even more simply, the light from a flashlight.
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A solar eclipse is when the Moon covers the disk of the Sun - hence everything becomes dark, like a night. In the same way that...
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The Sun - as do all stars - radiates a wide variety of energy. The primary energy output of the Sun is in the electromagnetic...
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Some work for NASA or the Air Force; many work for universities. A few work for private companies like Virgin Galactic, Scaled...
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The sun doesn't actually move. Rather, the earth's rotation (at approximately 24 hours per revolution) makes the sun appear to...
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It is called solar gain.
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This is estimated to be 100-400 billion stars. The reason this estimate is rather inaccurate is that it is hard to get a good...
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The sun's apparent path is called the 'ecliptic'. The constellations through which it passes are the constellations of the...
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Sunset would be at 7:03 PM EDT.(Local sunset time is more than an hour after the sunset times for the Atlantic coast, on the...
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The technical name for the big dipper is Ursa Major, literally, "The Great Bear."
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This is just another Internet hoax. It goes along with the 2012, Mars the size of the Moon and Nibiru hoaxes. This question...
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Not in the slightest. A lunar eclipse has no effect at all, and a total solar eclipse only affects a body of water by reducing...
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The phases of the moon are determined by how much of the illuminated half of the Moon can be observed from Earth (from which only...
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We do not know this because the aliens had never actually been captured by us humans or even seen properly to determine its types...
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No. Faster than light travel is impossible in any case.
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They appear real rare.
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Probably for a long long time, as Inky has yet to be named as a comet, but if you're lucky and spot a new comet, you are at...
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There are probably hundreds or thousands of those. Here are a few: http:// - [See Related Links] The Wikipedia article also has...
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The phase before the full moon is the waxing gibbous.
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No, but there is a constellation that look similar which is the Leo constellation(a lion).
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Yes, its got quite a few. Its one of the most cratered objects in our solar system. This is because there is no atmosphere on...
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Umbriel, which orbits around Uranus.
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