Review for Exam 1
Astronomy 104: Stars and Galaxies Fall 2007
Here is a list of various handouts from class for the first part of the
semester. You should look over these and be sure you understand them:
- Celestial Coordinates
- Sun angle and seasons
- Energy Levels in the Hydrogen Atom (also, Test Your Understanding of the
Energy Level Diagram and Spectral Lines)
- Luminosity Exercise
- Flux and Luminosity
- Practice Problems Distance Units in Astronomy
- Practice Problems: Ratios
- Practice Problems: EM radiation
- Practice Problems: Magnitudes
Probable format of the exam
- ~10 multiple choice
- ~5 very short answer (answer using one or two words)
- ~5 short answer (answer using two to four sentences)
- 1 long essay ( one page answer)
- 4 - 5 problems
You will have an equation sheet and page of constants.
What is NOT on the exam:
Material from lab is not on this exam. Examples of topics which are not
on the exam include: determining LST from RA and HA, celestial sphere
diagrams, using the star and planet locator...
List of topics (by chapter) for exam 1
Review the weekly study questions, the in class worksheets, and the
practice problems
Chapter 1 (week 1)
- Celestial coordinates
- Earth's orbital motions (solar day, sidereal day, etc)
- seasonal sun angle
- trigonometric parallax
- angular size, linear size, distance
- units of measure (parsec, AU)
|
- sidereal day
- solar day
- light year
See also the sheet of celestial
coordinate definitions from day 1 |
Chapter 3 (week 2)
- Electromagnetic spectrum
- energy and wavelength
- Blackbody (thermal) radiation or spectrum
- Wein's Law
- Stefan's Law
- Doppler effect
|
black body curve
frequency
wavelength
speed of light
Doppler effect
Wein's Law
Stefan's Law
|
Chapter 4 (week 2 & 3)
- Spectral lines (emission, absorption)
- Types of spectra (emission, absorption, continuous)
- Kirchoff's laws (formation of spectra)
- Atomic structure in relation to the formation of
spectral lines
- Spectrum of Hydrogen
|
- absorption lines
- emission lines
- continuous spectrum
- ground state
- photons
- ionized
|
Chapter 17 (week 3)
- trigonometric parallax
- flux, luminosity and radius
- magnitudes
- apparent magnitude, absolute magnitude, and
distance
- spectral classification
|
- parsec
- apparent magnitude
- absolute magnitude
- spectral class
|