Comment on the fact that most stars are actually multile stars in orbit about each other.?
409930
Multiple star systems are very common. In fact, the closest star to us (Proxima Centauri) is part of just such a system. It was once believed that planets couldn't be in multiple star systems, but of the 166 extrasolar planets so far found, several are in such systems.\n\nAs for our solar system that seems to have just one star, a persistent theory continues that the sun does have a companion star that has an orbit so highly eccentric that it approaches the sun once in several million years. To date, no hard evidence for such a star exists. Also, if Jupiter had more mass, it would have at least started its life as a brown dwarf star.
73589
Yes, I think its naive to think in this massive universe that we are the only ones. There are billions upon trillions of Stars out there. Whos to say that one of them doesn't have a similar solar system with life bearing planets. Its awefully arrogant to think we are all there is.
543897
well, ur stars may have a match with pisces ppl\nalass i m not a pisces
1173785
Stars don't move our sun is a big star it is our planet that orbits our star so that is why it seems like the stars move my lov.
998170
Our solar system is tucked into a corner of the galaxy where the stars are scattered far from each other.\n\nThe stars are denser closer to its centre.
527724
All stars except the Sun appear to the human eye as shining points in the night sky that twinkle because of the effect of the Earth's atmosphere. Interferometer telescopes are required in order to produce images of these objects. The Sun is also a star, but it is close enough to Earth to appear as a disk instead, and to provide daylight.\n\nStars are not spread uniformly across the universe, but are typically grouped into galaxies. A typical galaxy contains hundreds of billions of stars. The majority of stars are gravitationally bound to other stars, forming binary stars. Larger groups called star clusters also exist.\n\nAstronomers estimate that there are at least 70 sextillion (7×1022) stars in the known universe [1]. That is 70 000 000 000 000 000 000 000, or 230 billion times as many as the 300 billion in our own Milky Way.\n\nThe nearest star to the Earth, apart from the Sun, is Proxima Centauri, which is 39.9 trillion kilometers, or 4.2 light years away (light from Proxima Centauri takes 4.2 years to reach Earth). Travelling at the orbit speed of the Space Shuttle (5 miles per second -- almost 30,000 kilometers per hour), it would take about 150,000 years to get there. Distances like this are typical inside galactic discs, where the Sun and Earth are located. Stars can be much closer to each other in the centres of galaxies and globular clusters, or much further apart in galactic halos.\n\nCheck the wikipedia link below.
57630
No.\n\nThe orbits are inclined slightly and I do not believe there is a place where they would all be *exacly* in a line.\n\nBut they get close together in the sky. The visible planets are within a couple of degrees every twenty or thirty years. (Holding your fist out will block about 10 degrees.) Such an alignment in the sky can last for a few days.
15235
It is estimated that there are approximately 200 million stars in the Milky Way and each one has the potential to have a "solar system" of some type.  Depends on many factors and the type of planets that can exist around a particular star also have many factors.  A number of "solar systems" have been found around other stars.  A current list of them can be found at exoplanets.org
1145881
The stars are closer together, with many more of them.
807983
33 Arietis, commonly (among astronomers) 33 Ari, seems to be a double star pair. We are finding more double stars as the acuity of our instruments improves.\n\nWhere before we could only see a single point of light, now we can see that there are two stars in orbit around each other.\n\n;-D Hey! I am an Aries. What's your sign?
373960
This has been pretty well answered but I thought I'd clarify.\n\nThe Sun is the name of our solar system's star, the star we call home.  (Similarly the Moon is technically the name of Earth's only natural satellite, other planets have natural satellites which we commonly call "moons").  Other stars have different names (like Vega).\n\nWe are just finding extrasolar planets (planets that orbit other stars) and it is likely that there are many stars out there with planets and even solar systems (more than one planet orbiting them).  However it is also very likely that many stars will not have any planets at all.\n\nIf you are interested in this, here is a fun website about extrasolar planets: http://planetquest.jpl.nasa.gov/index.cfm
721889
it varies greatly depending on the position of the bodies in their orbits
658402
stars do not fallow the north star but seem to rotate around it because the north star is directly north and as we rotate the stars appear to move around the north star progressively through the night.
472607
planets orbit stars, satellites orbit planets
455949
everything in this universe moves. stars are parts of galaxies. for example our sun is a part of the milky way galaxy. we are in the sagittarius arm of our galaxy which rotates about its centre and as we are in one of the outer arms as the galaxy seems to rotate the sun along with its nine planets revolves around the centre of the galaxy. this is exactly what happens in other stars and star systems. secondly  all stars are round not to mention, every heavenly body is round because gravity makes them round. and the shape we concieve is just because of the phenomenon of scattering of light as the light from the stars passes through various layers of the atmospheres of different densities
268015
The matter that made up the sun and planets existed at one time as a very large disk. As the matter clumped together, it was already on the same plane. That's the theory, anyway.
41532
the sun is a star because it is. There are other stars in the universe that have planets revolving around them. All the stars you see in the sky are like the Sun once you get close enough. From those stars, our Sun just looks like another star in the sky.