I need Some Information about Nebulas Like " What are they " or ... ?
492304
Nebulas: One of the most beautiful phenomenon in the universe. They are made up of gas left behind by stars forming or exploding. \n \nTypes/Classes of nebula: planetary, supernova remnants, diffuse nebula\n\nPlanetary nebulas: Resemble planets, and are actually left over shell material from forming stars during their giant Red Stage.  \n\nSupernova: Remnants are exactly what they say: supernova nebulas are remnants of a star that exploded.  Left over remnants become surrounded by gas, causing a nebula.   One of the most famous supernova nebulas is the crab nebula in the star constellation Taurus.\n\nDiffuse nebulas: Extremely large, and can be light years in width.  They have no definite shape, and are either light or dark.
105792
This site should explain them for you:\n\nhttp://www-istp.gsfc.nasa.gov/stargaze/Slatlong.htm
289015
They are nebulae in the constellation Rigel.
925498
this site has some info  http://en.wikipedia.org/wiki/Greek_astronomy
1024896
Get all the info you need from its official website.\n\nhttp://hubble.nasa.gov/index.php\n\n\nYou can get more info, putting  "Hubble telescope" in your search machine  and follow the list that appears there.
515033
The most abundant element in the universe is hydrogen.  Nebulae are made up most of that and "dust".
192330
in addition to the ones mentioned try these as well .. \n\nhttp://www.nasa.gov/\n\nhttp://www.astronomy.com/\n\nhttp://www.universetoday.com/\n\nhttp://hubblesite.org/newscenter/\n\nhttp://skyandtelescope.com/
1006967
Actually you could see right through the nebula. Nebulae are extremely thin and much clearer than the air on clearest day on Earth. The only reason we can see them at all is that they are trillions of miles thick. It wouldn't be like the movies at all, where the space ship is hidden in a dense fog, it would be more like space looking clear but the stars appearing somewhat dimmer. So you could just triangulate on a number of known stars outside the nebula to determine your position.
272337
The Horsehead Nebula (also known as Barnard 33 or IC 434) is a dark nebula in the Orion constellation. The nebula is located just below Alnitak, the easternmost star of Orion's Belt, and is part of the much larger Orion Molecular Cloud Complex.\n\nOne of the most identifiable nebulae in the sky, it is part of a swirling cloud of dark dust and gases, shaped like a horse's head (hence its name). Also known as Barnard 33, the unusual shape was first discovered in 1888 on a photographic plate taken at the Harvard College Observatory.\n\nThe red glow originates from hydrogen gas predominantly behind the nebula, ionized by the nearby bright star Sigma Orionis. The darkness of the Horsehead is caused mostly by thick dust, although the lower part of the Horsehead's neck casts a shadow to the left. Streams of gas leaving the nebula are funneled by a strong magnetic field. Bright spots in the Horsehead Nebula's base are young stars just in the process of forming. Light takes about 1500 years to reach us from the Horsehead Nebula.\n\nThere you have it...
1032045
Download and run the program Stellarium from sourceforge.\n\nIts open source, and if you give it your location and the date/time it will show you the night sky for you locally and identify all of the constellations.
550736
is it possible that this might be called the cat's eye nebula?  if so, go to hubblesite.org. no specific listing for "god's eye"
300780
there are several (you did not provide enough details)...could be a sun, galaxy, nebula, etc.
672387
Greetings,\n\nHere are some links you might find useful.\n\nChinese:\nhttp://en.wikipedia.org/wiki/Chinese_constellation\nhttp://www.chinapage.com/astronomy/syho/syho.html\n\nLakota Native Americans (midwest -U.S.):\nhttp://www.kstrom.net/isk/stars/startabs.html\n\nNative Americans (misc.):\nhttp://eev2.liu.edu/e3/stargazer/native.htm\n\nEgyptian:\nhttp://www.egyptologyonline.com/astronomy.htm\nhttp://www.personal.psu.edu/users/d/r/drn116/egypt.html\n\nHope some of those help\n\n-matt
1145964
There is a great site about them:\n\nhttp://www.orbsbybeans.com\n\nThere is a difference between dust particles and actual orbs. Dust particles are irregular in shape. I've taken orbs in motion, with purple auras and geometric shapes. I also have seen pictures of orbs behind an object. I have also seen an orb in motion on video that moves with a consciousness. There's a wealth of info on them on the internet.\n\nIt's really hard to pinpoint exactly what they are. All I can say is that they involve consciousness. We can call them "subtle beings". That is a much better term rather than being more specific because you just cannot know no matter what.
444306
Nebula, in the most basic sense, is any observable cloud of gas.  You have objects like the Orion nebula (a star forming region), the Ring Nebula (a "planetary" nebula that is the result of a low-mass star's death), and the Crab Nebula (gas expelled during the supernoave death of a higher mass star).\n\nA black hole is, at its most basic, a region of space where the local escape velocity exceeds the speed of light.
1081187
A nebula (Latin: "mist"; pl. nebulae or nebulæ, with ligature) is an interstellar cloud of dust, gas and plasma. Originally nebula was a general name for any extended astronomical object, including galaxies beyond the Milky Way (some examples of the older usage survive; for example, the Andromeda Galaxy is sometimes referred to as the Andromeda Nebula).
60319
http://www2.naic.edu/~gibson/pleiades/