Ast1002 Study guides, Class notes & Summaries

From shortest to longest wavelength, which of the following correctly orders the different categories of electromagnetic radiation? gamma rays, X-rays, ultraviolet, visible light, infrared, radio Which forms of light are lower in energy and frequency than the light that our eyes can see? Infrared and Radio When considering light as made up of individual "pieces," each characterized by a particular amount of energy, the pieces are called _________. Photons Suppose you know the freque...

What is the relationship between color and wavelength for light?Wavelength increases from violet to red What is the one fundamental difference between X rays and radio waves?They are very different A particular reflecting telescope has an objective mirror with a focal length of 1.2 m and an eyepiece lens of focal length 6 mm. What is the magnifying power of this telescope?200 Why does the Sun look red when it's setting?Earth's atmosphere scatters shorter wavelength light more easi...

A long thin cloud that stretched from directly overhead to the western horizon would have an angular size of90 degrees When a thin crescent of the Moon is visible just before sunrise, the Moon is in itswaning phase f the Moon's orbit around Earth were a little larger, solar eclipses would bemore likely to be annular According to "The Zodiac" Figure shown above, in June we would see the Sun in the direction of the constellation(s)...Gemini In the Figure below (Figure 0.20A - Parall...

The average distance from Earth to the Sun, 149,600,000 km, can be written in shorthand notation as1.496x10^8 The elevation angle between the northern horizon of a fixed observer and the north celestial pole isThe observers latitude 1 arc second is equal to1/3600 Where would you have to be to see the south celestial pole on your horizon?On the equator The ecliptic crosses the celestial equatorAt two points, known as equinoxes Approximately what time will the first-quarter Moon rise?No...

What is the approximate rotation period of the sun? - ANSWER 25 days (equator) 36 days (poles) What is the approximate mean density of the Sun? - ANSWER 1410 kg/m3 What is the approximate surface temperature of the Sun? - ANSWER 5780 K How do we determine the luminosity of the Sun? - ANSWER L=Flux* 4 π R² What is the temperature of the core of the Sun? - ANSWER 15 million K What mechanism produces the energy in the core of the Sun? - ANSWER In the core, energy is produced by h...

These notes cover every chapter from the textbook The Cosmic Perspective for the class AST1002, Discovering the Universe. It includes topics like galaxies, physics, the history of astronomy, stars, planets, etc.

These notes go over every single lecture from AST1002 with Professor Paul Sell. This is an introductory astronomy course called Discovering the Universe. These notes include general astronomy topics like planets, moons, dark matter, energy, stars, galaxies, forces, etc.

For anyone taking that Astronomy

Astronomy and the Universe textbook study guides for Descriptive Astronomy course I took last semester, along with extra documents that include youtube videos and key terms and definitions.