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Last Ewen Telescope Open House

Last Ewen Telescope Open House. Tomorrow 4:30pm Lockhart Planetarium. ESA/Philae Panorama. Rosetta Update. Philae Spectra: Position of 1 st bounce: H2O & rich in organics. Final position: H2O & low in organics. Main mission accomplished. Now in hibernation – in shadow of cliff

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Last Ewen Telescope Open House

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  1. Last Ewen Telescope Open House Tomorrow 4:30pm Lockhart Planetarium

  2. ESA/Philae Panorama. Rosetta Update • Philae Spectra: • Position of 1st bounce: H2O & rich in organics. • Final position: H2O & low in organics. • Main mission accomplished. • Now in hibernation • – in shadow of cliff • - sunlight may be sufficient when closer to sun.

  3. ESA/Reddit user IG-64. Rosetta Update Rosetta will orbit comet. Perihelion August 2015.

  4. Planet Hunting & Exo-biology Update: Artist’s Concept • Imaging sun-like stars: • without cool dust in outer regions, unlikely to have warm dust in inner regions. • ½ stars are like this.  image around stars without cool dust rings • Planets around M dwarfs HZ: • Could have O but no life due to intense heat in formative years.  “mirage earths” • didn’t use M stars in our estimate.

  5. Meteorite from Mars – organic carbon? • analogous to coal (biological in origin)? • “Insisting on certainty is unwise, particularly on such a sensitive topic,” warns Gillet. “I’m completely open to the possibility that other studies might contradict our findings. However, our conclusions are such that they will rekindle the debate as to the possible existence of biological activity on Mars – at least in the past.” • http://actu.epfl.ch/news/traces-of-possible-martian-biological-activity-ins/

  6. Academic Learning Centre • Tuesday Dec. 2: Preparing for Final Exams206 Tier, 11:30 – 12:45 • This workshop will focus on how students can organize their materials and time so as to prepare effectively--and early--for final exams. • http://umanitoba.ca/student/academiclearning/workshops/index.html

  7. Tips: • http://www.physics.umanitoba.ca/~english/2014fallphys1810/test.html • do all exercises mentioned in class • review all images • do all relevant questions in Mastering Astronomy

  8. Exam Final Exam: * Tuesday Dec 9th @ 9am E2-229 EIT Complex* 2 hours • 72 questions in 2 hours • 9 math questions • 11 B&W images – to remind you of colour images in ppt slides • Need to be able to do ratios of masses, timescales, convert units • Based on material from last test onward – everything AFTER Sun • But includes previous material that is referred to in this section of the course.

  9. Exam Final Exam: * Tuesday Dec 9th @ 9am E2-229 EIT Complex* 2 hours • Allowed non-programmable calculators: Sharp EL-240SAB, Sharp EL-240SA, Sharp EL-240SB Sharp EL-510RNB, Sharp EL-510RN TI-30XZ TI-30X IIS Only Specified Calculators! Recall notice from Faculty of Science: could end up with F-DISC in the course. (Can do questions without calculator.)

  10. Tips for exam • Practise (examples) • Rsch • determining stellar radius given luminosity & temperature (e.g. compared to sun) • determining distance using Inverse Square Brightness Law (e.g. compare to stars) • Hubble Law • lifetime on MS

  11. Tips for Exam: recall – used to measure mass in planet using orbiting moon • Do this for a galaxy to determine its dynamical mass in Msun • look up a galaxy online or in textbook (e.g. the Milky Way) • find out orbital velocity • do for 2 radii: • radius of its 21 cm gas layer. • radius of sun for MW • remember to convert units!

  12. Make up critical thinking questions: • Try to make up ones that show your understanding. • analyze • evaluate • apply

  13. Congratulations! • You’ve covered the universe from the beginning of time until now (and a bit beyond). • That’s a lot of matter (dark and otherwise). • All the best on the exam. • May you have clear skies for your future astronomy observations.

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