'Cooler stars' presentation slideshows

Stars

Stars . Life cycle of star http://www.youtube.com/watch?v=H8Jz6FU5D1A. http://aspire.cosmic-ray.org/labs/star_life/starlife_proto.html. 1. Nebula = cold, dark cloud of dust and gas [mostly H]. gravity pulls particles, to clump together. Accretion: accumulating more mass.

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Chapter 4: Telescopes

Chapter 4: Telescopes. Optical telescopes: Reflectors and refractors. E. O. Refractors use lenses E: eyepiece O: objective. Reflectors use mirrors: . Newtonian. Cassegrain. Objective (O) = Main light-gathering surface (lens or mirror)

435 views • 30 slides

ASTROPHYSICS 3 Semester 1 Observational Astronomy & Physics of Stars and Nebulae

ASTROPHYSICS 3 Semester 1 Observational Astronomy & Physics of Stars and Nebulae. Philip Best. pnb@roe.ac.uk www.roe.ac.uk/~pnb/teaching.html. Key questions for this course.

395 views • 22 slides

Stars

Stars. How old are they?. A. 16. 24. 88. 23. 56. 31. 33. 24. 28. 1. 49. 1 month. 4. 18. 36. 26. 26. How old are they?. 1. 2. 4. 5. 3. Lagoon Nebula: Found in Saggetarius (about 5 million years) Protostar HH-34, Found in Orion Nebula (about 1500 years)

379 views • 15 slides