http://aspire.cosmic-ray.org/labs/star_life/starlife_proto.html
This website shows a picture of a Protostar from the Eagle Nebula. Protostars are incredibly unstable and do not always form into stars.
http://upload.wikimedia.org/wikipedia/commons/thumb/f/f3/Sirius_A_and_B_Hubble_photo.jpg/220px-Sirius_A_and_B_Hubble_photo.jpg
This is a picture of a non main-sequence star known as a White Dwarf. We know it's a non main-sequence star because White Dwarfs are not counted as a main-sequence star along with other things like Red Giants and Brown Dwarfs.
http://library.thinkquest.org/05aug/00108/Images/sun-soho011905-1919z2.jpg
This is a picture of our Sun, which is a main-sequence star.
http://ircamera.as.arizona.edu/NatSci102/NatSci102/text/molecularcollapse.htm
A cloud fragment is when interstellar clouds break up and can possibly form a star. This is a website that shows the procces step by step of how a star can form from a Cloud Fragment. This site details 15 different steps that a Nebula must go through to form a Cloud Frgament, Protostar, and a star.
http://www.tomaszrutstudio.com/nebula.html
This website shows a picture of an Interstellar Cloud. An Interstellar Cloud is a large formation of gas and dust. (Please note that the grammar and syntax of this website makes no sense at all... "Cocoon nebulacommand the hubble space telescope tonight, in astronomy to cats." is such an example of said terrible spelling/grammar/syntax). http://www.nasa.gov/multimedia/imagegallery/image_feature_405.html
This is a picture from the NASA website that details the Boomerang Nebula, my now new favorite nebula. Nebulas are interstellar clouds so it will have the same information as the last website. I'm just including it becase the Boomerang Nebula looks cool and to give some more credible information about Interstellar Clouds. An interesting fact about the Boomerang Nebula is that it's the coldest place in the universe found yet at one degree Kelvin above Absolute Zero, this equates to -460F.
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