Physics 202: Introduction to Astronomy – Lecture 6 Carsten Denker Physics Department Center for Solar–Terrestrial Research.

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Presentation transcript:

Physics 202: Introduction to Astronomy – Lecture 6 Carsten Denker Physics Department Center for Solar–Terrestrial Research

February 8, 2006Center for Solar-Terrestrial Research Chapter 3.1 – 3.5  Reflecting and refracting telescopes  Prime focus  Image formation  Newtonian and Cassegrain telescopes  Coudé focus  Collecting area  Angular resolution  Diffraction  Seeing  Image processing  Active Optics  Adaptive Optics  Radio Astronomy  Interferometry  X-ray and γ-ray Astronomy  Multi-wavelength observations

February 8, 2006Center for Solar-Terrestrial Research Telescopes

February 8, 2006Center for Solar-Terrestrial Research Telescope Types

February 8, 2006Center for Solar-Terrestrial Research Sensitivity and Angular Resolution Rayleigh criterion

February 8, 2006Center for Solar-Terrestrial Research Seeing and Adaptive Optics

February 8, 2006Center for Solar-Terrestrial Research Radio Astronomy

February 8, 2006Center for Solar-Terrestrial Research Chapter 4.1 ‒ 4.2  Solar system  Sun  Terrestrial planets  Jovian planets  Asteroids  Meteoroids  Comets  Asteroid belt  Trojan asteroids  Earth-crossing asteroids  Comet nucleus, coma, and hydrogen envelope  Ion and dust tail  Solar wind  Kuiper belt  Oort cloud  Meteors and meteorites  Comet break-up

February 8, 2006Center for Solar-Terrestrial Research Sun – Overview Mass (kg)1.989e+30 Mass (Earth = 1)332,830 Equatorial radius (km)695,000 Equatorial radius (Earth = 1) Mean density (gm/cm 3 )1.410 Rotational period (days)25-36 Escape velocity (km/sec) Luminosity (ergs/sec)3.827e33 Magnitude (Vo)-26.8 Mean surface temperature6,000°C Age (billion years)4.5 Principal chemistry Hydrogen Helium Oxygen Carbon Nitrogen Neon Iron Silicon Magnesium All others 92.1% 7.8% 0.061% 0.030% % % % % % %

February 8, 2006Center for Solar-Terrestrial Research Solar System

February 8, 2006Center for Solar-Terrestrial Research Solar System Objects

February 8, 2006Center for Solar-Terrestrial Research Asteroids

February 8, 2006Center for Solar-Terrestrial Research Extinction Level Events

February 8, 2006Center for Solar-Terrestrial Research Comets

February 8, 2006Center for Solar-Terrestrial Research Ion and Dust Tail

February 8, 2006Center for Solar-Terrestrial Research Kuiper Belt and Oort Cloud

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