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Basics of Astronomy Casey McNamara.

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1 Basics of Astronomy Casey McNamara

2 EVERYTHING THE UNIVERSE
Galaxies, solar systems, planets, stars, black holes, clusters, dark matter, AGN

3 Galaxies Large-scale system of stars, interstellar gas, dust, and plasma Elliptical Spirals Irregulars 90% composed of dark matter

4 Galaxies 2

5 Variable Stars Cepheid Mira Long Period Change luminosity
Over 5,000 catalogued A variable star in the Large Megellanic Cloud

6 Stellar Evolution Lifetime 2 million to trillions of years
Begins with collapse of giant molecular cloud New stars main sequence in HR Diagram HR Diagram shows spectral type

7

8 H-R Diagram

9 Spectroscopy O, B, A, F, G, K, and M
Break up ray of light into components in visible light spectrum Chemical composition of object

10 Visible Light Spectrum

11 Stellar Spectra and Graph

12 Absorption and Emission Spectra

13 Jacoby Atlas

14 MONET North & South MOnitoring NEtwork of Telescopes
Sutherland, South Africa McDonald Observatory, Texas Students receive 85% of time Robotic Designed to cover entire night sky

15 Views of MONET SAAO Sutherland hilltop view, including MONET
MONET Telescope and McDonald Observatory

16 CCD and DSLR Charged-coupled device Found in CCD and DSLR
Digital Single Lens Reflex

17 Astroimaging Tools Aperture Photometry Tool Image J Maxim DL Photoshop

18 Ratio of signal power to noise corruption
Dark and Flat Fields Dark Field Flat Field Signal to Noise Ratio of signal power to noise corruption

19 Astronomy Today David Lefreniere Spectroscopy and hidden exoplanets
Nicholas Cowan Looks at wavelengths to find water on other planets

20 Bibliography Brinkworth, Carolyn, and Claire Thomas. "Galaxies." Faulkes Telescope Educational Guide. July June 2009. "Galaxies - KidsAstronomy." Astronomy For Kids. 02 June 2009 < Xantox. "M104 Galaxy in Infrared Light." Strange Paths :: Physics, computation, philosophy. 02 June 2009 < Sanders, Robert. "Rethinking Last Century's Closest, Brightest Supernova." UC Berkeley News. 9 Jan UC Berkeley. 2 June 2009 <berkeley.edu/.../releases/2007/01/09_LBV.shtml>. "Chapq5!" The University of Toledo : Welcome to the Department of Physics and Astronomy. 02 June 2009 < Smith, Gene. "Stellar Spectra." Center for Astrophysics & Space Sciences, UCSD. University of California. 02 June 2009 < "Measuring Stellar Spectra." University of Colick Astronomy. 2 June 2009 < "Stars' Life Cycle." Think Quest Astronomy. 2 June 2009 <library.thinkquest.org/.../stars/life_cycle1.htm>. Rasband, Wayne. "MONET : ImageJ." Institut für Astrophysik Göttingen. 28 Oct June 2009 <


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