physics 202: introduction to astronomy – lecture 6
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Physics 202: Introduction to Astronomy – Lecture 6. Carsten Denker Physics Department Center for Solar–Terrestrial Research. Reflecting and refracting telescopes Prime focus Image formation Newtonian and Cassegrain telescopes Coudé focus Collecting area Angular resolution Diffraction. - PowerPoint PPT PresentationTRANSCRIPT
Physics 202: Introduction to Astronomy – Lecture 6
Carsten Denker
Physics DepartmentCenter for Solar–Terrestrial
Research
February 8, 2006 Center 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, 2006 Center for Solar-Terrestrial Research
Telescopes
February 8, 2006 Center for Solar-Terrestrial Research
Telescope Types
February 8, 2006 Center for Solar-Terrestrial Research
Sensitivity and Angular Resolution
min 1.22D
Rayleigh criterion
February 8, 2006 Center for Solar-Terrestrial Research
Seeing and Adaptive Optics
February 8, 2006 Center for Solar-Terrestrial Research
Radio Astronomy
February 8, 2006 Center 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, 2006 Center for Solar-Terrestrial Research
Sun – OverviewMass (kg)
1.989e+30
Mass (Earth = 1) 332,830
Equatorial radius (km) 695,000
Equatorial radius (Earth = 1) 108.97
Mean density (gm/cm3) 1.410
Rotational period (days) 25-36
Escape velocity (km/sec) 618.02
Luminosity (ergs/sec) 3.827e33
Magnitude (Vo) -26.8
Mean surface temperature 6,000°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%
0.0084%0.0076%0.0037%0.0031%0.0024%0.0030%
February 8, 2006 Center for Solar-Terrestrial Research
Solar System
February 8, 2006 Center for Solar-Terrestrial Research
Solar System Objects
February 8, 2006 Center for Solar-Terrestrial Research
Asteroids
February 8, 2006 Center for Solar-Terrestrial Research
Extinction Level Events
February 8, 2006 Center for Solar-Terrestrial Research
Comets
February 8, 2006 Center for Solar-Terrestrial Research
Ion and Dust Tail
February 8, 2006 Center for Solar-Terrestrial Research
Kuiper Belt and Oort Cloud