What is the density of stars in the Orion Molecular Cloud Complex? How close are some, how far apart are some?
http://en.wikipedia.org/wiki/Orion_Molec鈥?/a>What is the density of stars in the Orion Molecular Cloud Complex?
I have gone to the other question link Dave, it's about hose head Nebula.
These clouds would have a typical density of 30 particles per cubic centimeter.
The Orion Molecular Cloud Complex, or Orion Complex is located in and around Orion. The most active region can be found between Orion鈥檚 belt and sword. This is a good star gazing destination because it is easy to locate and the winter night sky is great for observing because of it鈥檚 clarity. Several components of this region are visible to the naked eye and binoculars. For example, the pink colored smear you can see in Orion鈥檚 sword is actually the beautiful Orion Nebula.
The Orion Complex, which is about 1,300 light years from Earth, is called a molecular cloud because it composed of interstellar dust and gas. The density of the matter is quite high and hence, is a very active star forming region. This high level of activity has created some striking nebulae, worthy of your telescope time! Some of the interesting objects in this area include: The Orion Nebula (M42), The Horsehead Nebula (IC 434), Barnard鈥檚 Loop (Sh 2-276), and the Flame Nebula (NGC 2024).
It is believed that the creation of newborn stars occurs exclusively within molecular clouds. This is a natural consequence of their low temperatures and high densities, since the gravitational force acting to collapse the cloud may exceed the internal pressures that are acting "outward" to prevent a collapse. Also there is observed evidence that the large, star-forming clouds are confined to a large degree by their own gravity (like stars, planets, and galaxies) rather than external pressure (like clouds in the sky). The evidence comes from the fact that the "turbulent" velocities inferred from CO linewidth scale in the same manner as the orbital velocity (a virial relation).
{***SUMMARY in my opinion, is, "Lower the density is directly proportional, (nearest) to extinction, and to give birth to new stars/galaxy." I have hinted you, and you can now move to density vs formation OK. Oh! Don't forget to give 6 reasons that your finding can be disproved, good luck.***}so i have given you hint on birth of star to extinction.
Multiple sources.
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