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Stars

Parent Category: Astronomy
Stars are balls of luminous plasma, held together by gravity. They can be seen twinkling overhead from our planet each night. They are enjoyable to look at, but also have been used as navigation tools for centuries.
(circumpolar - our view of the constellation on Earth)  Constellations are circumpolar because they are only how we view  them on Earth. The constellations would be different on another  planet or at another viewing point. They are circumpolar since they  are at different distances in relation...
No. It receives more energy than it gives off. That is one of the reasons it is referred to as an "Ice Giant", along with Neptune.
The Sun produces energy by the nuclear fusion of hydrogen into  helium in its core. What that means is that, since there is a huge  amount of hydrogen in the core, these atoms stick together and fuse  into a helium atom. This energy is then radiated out from the core  and moves across the solar...
All constellations have stars of all temperatures. Libra is no  exception to that. So there isn't some specific temperature about  the stars in it.
Libra is a constellation, a specific part of the celestial sphere.  So it is not a physical entity that could have a temperature. If  you are referring to the stars that can be found within its  boundaries, they can be any temperature that applies to a star  (anything between 3000K and 20000K)
No, it is not a 'real' galaxy, merely one that exists inside the movie world. It is based upon Science Fiction, and you will not be able to travel to it.
Earths atmosphere consists of 78.09% Nitrogen, 28.95% Oxygen and 1%  trace elements, mainly Argon. The martian atmosphere consists of  96% Carbon Dioxide, 1.9% Nitrogen, 1.9% Argon, with oxygen present  only as a trace element. Where you to inhale the martian atmosphere  you would suffocate. The...
The second nearest star to Earth is Proxima Centauri, 4.25 light  years away and 270,000 times farther away than the nearest star,  the Sun!
Stars can be classified by temperature, pressure, age, size or  colour. Star classification according to size is found out  using temperature and pressure classifications. The temperature  tells them the surface brightness of a star, and the pressure tells  them an approximate size of the star,...
Quasars are some of the most distant and luminous bodies we can  observe. Since we measure them to be incredibly far from our own  galaxy, in the order of billions of light-years, astronomers  believe that they are several billions of years old as their light  would have taken that long to...
  The sun has a  magnetic field that gets twisted around inside the sun as it spins.  There are places on the sun where this magnetic field rises up from  below the sun's surface and pokes through, creating  sunspots.Sunspots are magnetic and often have  a north and south pole like a magnet...
Energy sources that don't depend on the sun are: Nuclear Energy and  Windpower.
Scientists measured it in light years. The Milky Way takes 100000  years to get from one side to the other at the speed of light.
Quasars are galaxies which are much brighter than ordinary ones. they are as bright as 100 galaxies put together. they are also as powerful as several blackholes put together. quasars are seen as faint light from the earth this shows how powerful they are to be seen from the extreme end of the...
No. The sun is too hot for water molecules to stay together. The  sun's source of energy is hydrogen, which makes up most of its  mass.
The decrease is caused because it makes the spiral galaxy move  further apart.
Constellations are named for mythological creatures from stories.
The black hole represents a crust in the space which swallows anything that passes through it. Even light cannot escape from a black hole! There is a particular radius for a mass to become a black hole when it is squashed. This is known as the Schwarzschild radius and for the body to become a black...
In the Northern Hemisphere from June through February
Galaxies occur solar systems that formed after the universe exploded.
Saturn's distance from the Sun in miles is 891 million miles.
No one knows exactly why, as we can't see under its clouds. There are several ideas, but all come down to some internal source of excess heat: maybe gravitational, radioactive decay, fission, fusion, etc.
Neutron stars. Pulsars. And occasionally black holes.
Almost everything we know today about the stars and their life cycle is a direct result of the correct interpretation of our main source of evidence on the stars (their spectra) by a graduate student of very Young appointed Cecilia Payne. Before its discovery in 1925 astronomers thought all the...
The sun doesn't. It would be impossible
First of all, there's two theories of relativity. The one on normal  relativity which indicates that an object that is moving very fast  will experience less time than one that is stable. The one on  special relativity indicates that the more gravity an object is  putted into, the less time it...
Each cycle for the sun is about 10-11 years.
Yes, Aphrodite does have a constellation. I wish your question had more to answer.I hope that answers your question. If not please message me on my message board to ask more specifically, I WILL have an answer.
One constellation holds the Big Dipper, and that constellation is  Ursa Major. The Big Dipper is located at the end of the body and  the tail of the Great Bear constellation. The Big Dipper is  considered a minor constellation within the constellation of Ursa  Major, and the stars that make up...
The constellation has a total of 281 stars in the area defined bythe constellation boundary of which only 11 are main stars.
The planets depend on the time of year.
The Orion constellation can also be referred to ''The Hunter''
To learn more about the universe. For me personally, I enjoy  getting outside at night and observing. I look at stars that change  in brightness - variable stars - and this contributes to our  ongoing long-term database.
Supergiant stars are dying stars that still undergo nuclear fusion,  they are made up of hydrogen and some other elements such as oxygen  and magnesium. Neutron stars are exposed cores of supergiant stars,  they are made up of neutrons, and they cannot undergo nuclear  fusion.Supergiant stars...
well, it doesn't really move. the earth is tilting either away, ortwards the sun a it is evolving/ rotating around the sun. that iswhy we have night and day. sorry if you are religious.
It's made of dejection.
-3.64 is the absolute magnitude of Polaris.
That will depend on the speed. At the speed of light, it should  take about 26,000 years, since the center of the Milky Way is about  26,000 light-years away from us.
The sun will never blow up. The sun will died in 5 to 7 billion  years, but the process will be gradual.
No. The only star in the solar system is the sun. The stars you see  at night are much farther away.
Gamma Geminorum (Alhena) is the second brightest star in the constellation Gemini. It has a spectral type of A1 so it has a temperature of the upper of 7,500-10,000 K and will appear white-blue. It is on the main sequence but is on the evolving stage where it will enter a sub giant stage. So in...
The only way we'll ever know if Betelgeuse has "gone supernova" is  when we see it. Of course, by the time we see it, the event will  actually have happened some 640 years earlier, because that's how  long its light takes to reach our eyes. Despite being only about 10  million years old (young,...
According to data found in the Wikipedia, the Pistol Star has 306 times the diameter of our Sun. Raise that to the third power (306 cubed) to get the ratio of the volumes. Please note that due to the fairly large distance of the star, the numbers may not be entirely accurate. Of course, there...
Because it does not have enough mass to crush itself with it's gravity.
Andromeda is the wife of Perseus and the only mother of his  children  seven sons: Perses, Alcaeus, Heleus, Mestor,  Sthenelus, Electryon, and Cynurus as well as two daughters,  Autochthe and Gorgophone. 
Andromeda was a mortal princess of Eithiopia and later wife of  Perseus and queen of Mycenae.
This question doesn't make sense
Neither, dark matter is an undetectable yet massive existence within our universe. It is spread out relatively smoothly, not bunching up in particular locations. For more information, search dark matter images (computer simulated), they help the visualization of it.
Black holes havent quite been explained yet. Some scientists still havent found out why black holes are created, and what creates them. But people have suggested that black holes are usually made o rubbish. (Im talking about junk that is left in space such as crashed space ships, or either broken...
Inside is unknown but around the edge is very hot.
If it's important to anybody, that's because it's a relatively  bright star that always remains more or less in the same position,  as seen by us.
Leos are lionhearted. This means they are faithful to a fault and loyal to the core. They may be a bit showy, loud or outward, but when they keep away from material lifestyles, they make great leaders.
the answer to this question from the nasa website is 26,000 light years.
About 2.5 million light years from Earth, but since the Earth and  Sun are only 8 light minutes apart, there isn't that much of a  difference in how far the Andromeda Galaxy is from the Sun or  Earth. So the Andromeda Galaxy is about 2.5 million light years  from the Sun and Earth.
Mercury, Venus, Earth, Mars, Jupiter, Saturn and maybe Uranus. But if you live long enough Neptune too.Mercury: 88 days to orbit the sun.Venus: 225 days to orbit the sun.Earth: 1 year to orbit the sun.Mars: Almost 2 years to orbit the sun.Jupiter: 12 years to orbit the sun.Saturn: 30 years to orbit...
Nebulae or star clusters within the Milky Way Galaxy.
It is useful because it is directly above Earth's north pole so if  you were traveling north, you would know what to follow
Well, maybe. Black holes are bodies in the universe and they are so dense that nothing, not even light, can escape. Black holes can suck an entire planet whole. Use this as an example: if an inhabitated planet was in the path of a black hole, the inhabitants would be killed along with their home....
Orion received its named from Orion, who was was a giant huntsmanin Greek mythology whom Zeus placed among the stars as theconstellation of Orion. Ancient sources tell several differentstories about Orion; important recorded episodes are his birthsomewhere in Boeotia, his visit to Chios where he met...
Brightnest is a factor of luminousity and distance as seen from Earth. (Apparent magnitude) Vega - 0.03. Betelgeuse: 0.42So Betelgeuse is brighter as viewed from Earth.
The diameter of the earth is 12,742 kilometers with a volume of  1.08321 E12 cubic kilometers. The sun has a volume of 1.41 E18  cubic kilometers. This means that the sun is about 1,300,000 times  the size of the earth.
There was one a man named Orion and his favourite belt had broken that day and he discovered the 'Orion's Belt' constellation and named it that in honour of his favourite belt.
There are countless stars.
Well, there is a way to be specific, but Astronomers estimate that  the Milky Way contains up to 400 billion stars of  various sizes and brightness. Meaning, there are A LOT.
No, it's the other way round - the Little Dipper is part of a  constellation, the constellation of Ursa Minor.
Nothing. The distortion of space and time within a black hole's  event horizon is so extreme that the only possible direction of  movement is further inward.
An irregular galaxy is a galaxy that does not have a regular shape, like a spiral or an elliptical galaxy.[1] The shape of an irregular galaxy is uncommon - they do not fall into any of the regular classes of the Hubble sequence, and they are often chaotic in appearance, with neither a nuclear bulge...
Like all other stars where created by a nebulae. They believe that a supernova exploded near by and that ended up stirring the gases in the nebulae and then through nuclear fusion of hydrogen to helium the sun was created. The sun is now 4.5 billion years old and in another 5billion years it will...
it is the last class
Sure, if it gets close enough, it might. By the way, any other object of sufficient mass could also "suck" the Sun if it gets close enough.\n Sure, if it gets close enough, it might. By the way, any other object of sufficient mass could also "suck" the Sun if it gets close enough.\n Sure, if it...
A star is composed of three elements; 1. Hydrogen 2. Time 3. Gravity Given enough of each, you'll get stars.
because giant and supergiant stage is very short
A convection zone is the final process of the sun's radius. Energy  from the sun is carried outward to the surface by convection  currents.
Antares (Alpha Scorpii) is the brightest star in the constellation  Scorpius.it is often referred to as "the heart of the scorpion".
milo martin coz he rules
It stays up in the air because its in space-where there's no gravity whatsoever.so, it stays up as there is no gravity to pull it down.
The ancient Greeks and Celts had mermaid myths.
Gravity is a field or a force, and, hence, has little to do with  speed.
we will live in darkness It'd take about 8 mins for us to know if went out, it'd get dark and everything would freeze to death