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Astronomy 100

Astronomy 100. Starlight, Starbright. Star light, star bright First star I see tonight I wish I may, I wish I might Have the wish I wish tonight.

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Astronomy 100

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  1. Astronomy 100 Starlight, Starbright

  2. Star light, star bright First star I see tonight I wish I may, I wish I might Have the wish I wish tonight

  3. ANSWER NOW: (You will turn this in) Write, discuss, sketch, label – somehow communicate your knowledge and understanding of the electromagnetic spectrum. If you don’t think you have one, write/discuss/sketch/label a rainbow instead. Tell me everything you can. • 1st GOAL: Understand spectra. • Vocabulary: wavelength, spectra, continuous spectrum, emission spectrum, absorption spectrum, black-body spectrum, electron, energy levels, excited, Doppler effect, red shift, blue shift, metallicity

  4. Antonine-education.co.uk

  5. Different wavelengths are different colors. • Different wavelengths are different energies. • Different colors are different energies. • If you look directly at a heat source – you get ALL POSSIBLE COLORS – continuous spectrum or “black body” spectrum. • If you look at a heated gas you get some colors because it’s not heat, it’s excited electrons.

  6. Continuous Spectrum (Heat) • http://an.hitchcock.org/repairfaq/sam/spctrm3.jpg

  7. Physics.uiowa.edu

  8. upei.ca

  9. Spectra Activity

  10. physics.umd.edu

  11. http://physics.uoregon.edu

  12. Classification Activity

  13. OBAFGKM Spectra KPNO .9m Telescope, AURA, NOAO, NSF

  14. Solar Spectrum

  15. odin.physastro.mnsu.edu

  16. http://www.youtube.com/watch?v=imoxDcn2Sgo • http://www.youtube.com/watch?v=J43lAESftPs • http://www.youtube.com/watch?v=-t63xYSgmKE

  17. Review: (You will turn this in) • Define three of these terms: • Metallicity • Spectrum • Excited • Spectra • Doppler effect • Red shift

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