What makes the beautiful images in nebulas?
350859
Nubulas do not really have those wonderfull colors you see in photos made by the habbel telescope and such. Those colors are computer generated to facilitate recognizing the different regions and/or components of the nebulae.
168537
The basic scheme is: Gas Cloud --> Main Sequence --> Red Giant --> (Planetary Nebula or Supernova) --> Remnant
1059315
the Horse Head Nebula looks exactly like its namesake!  Beautiful.
321257
We do this all the time today.  We have many times looked into the heart of a planetary nebula (leftover from the death of a low mass star) or a supernova remnant (leftover from the death of a high mass star) to see the small compact objects left over after the star has died.\n\nIn the case of a low mass stars we see many white dwarf stars, and for the high mass case we see neutron stars.  A good example is the pulsar we have seen in the Crab nebula, or the white dwarf at the heart of the Ring nebula.
324379
The red comes from ionized gas that is glowing, much like the gas in a neon light. The energy to make the gas glow in a neon light is electricity. The energy to make a nebula glow is radiation from nearby large hot stars. Blue nebulae are just scattering light from nearby bright stars, something similar to what makes our sky blue during the day.\nNebulae that shine by ionization are called emission nebulae. Nebulae that shine by scattering starlight are called reflection nebulae. Some can do both.
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"
542564
Meteors, Asteroids, comets, Nebula's (gaseous clouds where stars are born) photon stars, Neutron stars, pulsars, quasars, black holes, regular starts like out sun, galactic clusters, spiral galaxies, bar galaxies, moons, and planets, and solar systems.
54981
i believe it's the magnification (or other distortion such as increased brightness) of the appearance of a star in the sky or through a telescope. the diffraction can be eliminated digitally, but other than that i'm not sure.
826501
To begin,click on Yahoo images and enter galaxies.  You will be amazed.
842466
Very few splotches.  Check NASA website for hubble photos.
387444
Not really, but they look like twinkling because moving particles from space block the light that we see from down here so it looks like it's twinkling...Hope you understood my answer...sorry...
37735
Stars are like our Sun. Not comets at all. Comets are dirty, big snowballs that have no light at all. The twinkling comes from heat radiating from earth which makes the light spectrum shift in different colours. Symbols that represent something doesn't often look like the original. Take the symbol for a heart for example. But it's easy! :) Try to draw a immensly huge boiling, burning piece of gas that throws tons of particles out from it in lightning speed and see if anyone understands what you drew. Now try to make it into a character that you can type on a keyboard :)
481724
We do not.  Every single "picture" of the Milky way (other than the view into the galaxy from earth) is either a picture made by someone, or an image of another galaxy that we feel looks a lot like what we have determined outs looks like.\n\nThis is actually a big misconception, and I wish that textbooks, and other books showing images of galaxies would make more of a point in labling things "artist's conception" or some other designator.
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A Planetary Nebula is a misleading name.  At the end of a lower mass star's life (for stars up to about 8 times the mass of the sun), the star puffs up, and loses the outer layers of gas surrounding it.  All this gas goes out into space where it can be seen as what we call a planetary nebula.\n\nOriginally the word "nebula" was applied to any astronomical object that was not a star or a memeber of our solar system (planets, asteroids etc), the word essentially means "cloud."\n\nAs telescopes got better people started to find many different types of nebulae. A Spiral Nebula looks like, well a spiral, today we know that these are spiral galaxies.  Planetary Nebula were named because the looked round, and a number of them had the same greenish color that Uranus had been seen to have by Hershel.
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The arc is what YOU see. the truth is that it is a complete circle obscured by the horizon. The colors are not created by the raindrops (moisture droplets would be more accurate) but by the angle the light is shining through them. it is a relative thing as well meaning the view or lack of depends on your perspective. No matter how scientifically I describe this; a rainbow is an amazing thing and I hope you enjoy every one you see!
515033
The most abundant element in the universe is hydrogen.  Nebulae are made up most of that and "dust".
779521
I love the sky because when you look up and see how infinite it is, it puts the world in perspective as to how small we are compared to the grand scheme of things.\n And its so beautiful.