Astr 1010 Study guides, Class notes & Summaries

This document includes all of the necessary notes to pass David Connick's second midterm. I passed with a 92, so they definitely work. Hopefully they save you some time!

Astronomy 1010 Final HW One of the most important earlier steps in understanding stars was to group them into classes called spectral types that could offer clues as to why they are different from one another. Shown here are spectra of some main-sequence stars. Before stars were very well understood, they were classified into an order that was based on the relative strength of hydrogen absorption lines, marked by arrows the image shown. Look at the spectra for stars of different spectral ...

If you lined up __________ Earths side-by-side, they would fit across the diameter of the Sun. The volume of the Sun is about ____________ times larger than the volume of the Earth. correct answers 109 / 1,300,000 Place the following chemical elements into the correct order of their abundance (frequency of occurrence) in the Sun carbon / helium / hydrogen / iron / neon / oxygen / sulfur correct answers Most abundant = hydrogen // helium // oxygen // carbon // neon // iron // sulfur = least fr...

Astronomy correct answers Patterns among the stars Sun correct answers - An ordinary, middle-aged star, more massive and luminous than some stars but less massive and luminous than others - Only extraordinary because of its importance to us within our solar system Solar System correct answers - Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune - Also contains smaller bodies, such as dwarf planets, asteriods, and comets Milky Way Galaxy correct answers - A flattened col...

Implications of how the Solar System may have formed correct answers -All planets orbit the Sun in a roughly flat plane -The orbits of the outer planets (those most distant from the Sun) are spaced farther apart from one another than the orbits of the inner planets -All planets orbit the Sun in the same direction -The closest planets to the Sun are much smaller than the planets that are farther away what is the most likely scenario for the formation of the Solar System correct answers A cl...

What is the Earth-Sun distance compared to the Earth-Moon distance? correct answers 400x What is the speed of light? correct answers 300,000 km/s What is a light-year? correct answers The distance light travels in one year How long does it take light to travel around the Earth? correct answers 1/7 of a second How long does it take light to travel from the Sun to Earth? correct answers 8 minutes How far are we from the nearest star? correct answers ~4 light years Radius of obser...