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Star formation

  1. Jul 20, 2006 #1
    What evidence do we have that stars are forming right now?

    Molecular clouds? why do we know that molecular clouds are where stars form? any other lines of evidence? i know this is a big topic so a few reasons or a good link would be a good start for me to understand this big topic

  2. jcsd
  3. Jul 20, 2006 #2


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    Staff: Mentor

    Though it is difficult to watch real-time, we can see stars in all stages of their lifespan, including formation itself. The Pleiades, for example, is a star cluster that formed relatively recently, the stars are young.....

    Heh - and learn something new every day. I thought the nebulosity of the cluster was left-over from its formation, but apparently not:
    Here is a picture of "stellar nursery": http://antwrp.gsfc.nasa.gov/apod/ap960816.html
    Last edited: Jul 20, 2006
  4. Aug 11, 2006 #3


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    Like Russ said, you can examine many different nebulae and see the different stages of star formation (the whole process is too long to watch). There's still a lot of virgin material out there ready to make new stars.
  5. Sep 14, 2006 #4
  6. Sep 17, 2006 #5
    thanks Geo. Cam on ban nhe.
  7. Sep 18, 2006 #6
    Yeh as the guys above have said you can look at nebulae which are, as im sure you know, generally thought of as stellar nurseries due to it being a dark, cold enviroment which is good for star forming (stellar winds push protostar material away).

    Evidence for recently 'turned on' stars (hydrogen fusion begun) is say a star in a nebula which is glowing brightly but tightly surrounded by dust and gas save for a small pocket just outside the star, showing it is in the process of pushing this material away

    dunno if that helps
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