Astronomy
The scientific study of celestial bodies. Find questions on Constellations, Planets and more.
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Planet Earth is like a spinning top that takes 24 hours to revolve a full 360 degrees on its axis (the north/south poles). As...
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Observatories, telescopes, space shuttles, space probes, electromagnetic radiation, satellites, spectrographs, and spectrums.
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The Pinwheel Galaxy - a spiral galaxy.
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The primary effect of Earth's rotation is the phenomenon of day and night. The rotation of the Earth about its axis in an...
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Hale-Bopp. I might add that it was really cool.
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Due to tidal forces from the earth, the moon is locked in a 1:1 resonance with the earth.
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The universe is so vast, it takes an extremely long time to learn about something so enormous. People do not yet know everything...
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Shooting stars streak across the sky quite rapidly--usually. There are two types of satellites you might see. Most satellites...
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The equinoxes are the two points on the celestial equator there the ecliptic(the sun's apparent annual path through the stars)...
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The Big Bang Theory doesn't even try to explain "how" our Universe began, it only DOES explain (as no other theory can) what...
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Earth's rotation is slowing down due to tidal friction caused by the pull of the moon on the oceans against the western coast...
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The Ion tail.
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1 parsec (about 19 trillion miles, or 3e+16 kilometers) is approximately 3.26156377697121 light years. Andromeda, our closest...
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In astronomy, however, a constellation is an area of the sky, and contains all the stars and other celestial objects within that...
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Keck ObservatoryKelvinKelvin WaveKelvin Temperature ScaleKepler, JohannesKepler's First Law of Planetary MotionKepler's Second...
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false a quasar isn't.
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Hot clouds of dust and reactive gases
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Solar flares and coronal mass ejections. You can see the daily sunspot number, and movies of interesting CMEs and flares, at...
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A Light-Year is a measure of DISTANCE, not TIME. A light-year is how far light can travel in one year. Light travels at 186,000...
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Because we're inside the galaxy. Just as you cannot take a photo of the outside of your house from within your kitchen, we cannot...
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then here will be no life on the planet. Sorry
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The same thing as usual. It goes up, it comes back down later.
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Who knows. We've only found about 400+exoplants [See related question]
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No. We only ever see one side of it. _________________________ The reason for this is that the Moon rotates once per orbit,...
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Way back, in ancient times. Ogg and Mrs Ogg were contemplating what they were standing on. Ogg thought, quite correctly, that it...
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The lower the frequency, the larger its wavelength. This applies to waves in general.
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Chromosphere
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Moon, and to a lesser extent, the sun.
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Perigee
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In our sun, deep in the core. In larger stars fusion may occur in a shell around the core.
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Astronomy is nearly as old as humanity itself because humans have always been fascinated by the night sky. There is no definite...
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SOMEBODY can see it EVERY day, but everyone can't see it all the time. The Hubble Space Telescope is in a low Earth orbit, about...
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The inner core is the hottest layer of the Earth.
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If you have a large cakepan with a few inches of water in it, it's a lot easier to set up waves in it, or make it flow from one...
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1) Cloud cover: the recent decrease in the output of cosmic rays from the Sun gives less sites of nucleation for cloud water...
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This is going to sound like a smart-aleck answer, but it depends on the size. Dwarf galaxies might be as small as ten million...
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It comes from the Latin astronomia and Ancient Greek ἀστρονομία (astronomia) < ἄστρον (astron, "star")
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Globular Clusters, estimated as old as 12 to 14 billion years.
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We do not know exactly. However assuming first that you mean the Milky Way Galaxy (The Galaxy our Solar System is in) the only...
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Each light-year is approximately 9.5 x 1012 km.
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There is a lot of doubt about the answer to this question. Depending on the sources, it could be spiral or elliptical.The most...
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Dozens times each day. THOUSANDS of times per day during meteor showers, of which there are seven or eight per year. We're lucky...
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The Moon does not turn orange during a solar eclipse; it turns orange during a LUNAR eclipse. The reason is that the Earth's...
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eleventy nine point twenty million and two
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Solar flares occur when energy stored up in the sun's magnetic field is suddenly released, or converted from magnetic energy into...
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Some do, whereas some don't. Astronomy is very similar in that respect to a vast number of other professions.
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heres a chart: from lowest temperature to highest (lowest) Red: 2,000-3,000 Degrees F Orange: 3,000-4,000 Degrees F ...
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Quasars [See Link] are believed to be powered by accretion of material intosupermassive black holes [See Link] in the middle of...
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Let's be very clear here; Aristotle never had a "model" of the solar system. Aristotle may have been the wrongest person every to...
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http://docs.google.com/gview?a=v&q=cache:s0OAkYxRduwJ:sciencespot.net/Media/earthsciencepuzzle.pdf+earth+sceince+t+trimpe+2002...
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Because their discoverer, William Herschel, thought they looked like planets. We now know that they are very different from...
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Nuclear fusion of hydrogen into helium in the core of the Sun provides the energy that allows the Sun to shine, and to hold...
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Arya Bhatta, give the 0 as a number
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Not yet. Orbits "decay" if there is some kind of friction that slows down an object and causes it to fall into the primary body. ...
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Southern Hemisphere's summer season.
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Magnetic field
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It would do some damage, just break, or depending on where it hit it could REALLY hurt.
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The only real difference is it's a little small.
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The Sun together with the group of celestial bodies that are held by its attraction and revolve around it, or a group of...
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Apollo 17, launched December 7, 1972, was the last Apollo mission to the moon. Mission commander Eugene Cernan was the last...
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The moon is stuck in what is called an "Orbit" around the earth, the Earth Spins "slowly" and the moon spins around it....
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To be a professional astronomer one should start in high school by taking as much math and science as possible. This would...
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it gives us warmth light and solar energy
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It always moves it orbits the Earth which orbits the sun.
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One AU, or Astronomical Unit.
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It's probably due to backlit dust clouds or grains that block starlight and so appear dark.
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The Earth rotates once every 23 hours 56 minutes and 4 seconds. This is called the sidereal day (as compared to the "fixed...
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probably it was a mixture of sulphur dioxide & carbon dioxide, mixed with small fragments of vapour phase of water molecules...
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Copernicus thought that the Earth was not in the center of the universe but no one believed him until Galileo Galilei proved him...
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It is precisely the supernovae that created those elements and dispersed them into space.
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If you were travelling faster than the speed of light then yes, but if you were not travelling at light speed you would not....
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Then there would be no seasons. Or hardly any seasons; the varying distance to the Sun would produce slight variations in...
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The answer you seek is within you must find it yourself to understand
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Everything, except their wavelength (frequency) and the amount of energy per quantum.
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They disintegrate.
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See related questions
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We're aware of 91 chemical elements which appear to exist "in nature", although it's certain that many of the...
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For historical reasons, the ratio of brightness that represents a change of 1 visual magnitude is defined as the 6th root of...
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Ice crystals in the Earth's atmosphere, which may indicate cloud formation. This ring is found 23 degrees, on either side, from...
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Gravitation is towards the center of the Earth, but this is just the combined force of different parts of planet Earth pulling us...
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You will probably go to the bathroom sooner than if you had not eaten.
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Our knowledge is too limited to answer this question yet. We know about the moons of our solar system, but we know nothing of the...
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From as little as 10 miles (neutron stars) to as much as over 100 million miles.
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A white dwarf.
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Light. Light travels 300,000,000 meters per second, whereas Sound is closer to 340 meters per second. This is why when you see a...
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The sun is shaped like any other star. It is just that light from other stars are slightly refracted off of cosmic dust, the...
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A neutron star that "blinks on and off" is called a pulsar. They don't really blink, but there is a jet or jets of energy that...
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Approximately 13,700,000,000 years ago.
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Most main sequence stars, including sun, produce heat and light by smashing atoms together to create explosions. Eventually, when...
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While there is a total solar eclipse in the year 2017, the path of totality will NOT pass over the state of Connecticut. The Moon...
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