This
document was last revised on 10-24-2013 at 15:25
This review does not necessarily
list every term or concept that will be on the test,
but the subject matter
is limited to the readings, class notes, and homework assignments.l
Important topics
Force, gravity, barycenter,
mass, weight, satellite, astronomical unit,
light year, parsec, surface
brightness, bandpass, monochromatic radiation, Angstroms, nanometers..
Know who did what and when, e.g.: Newton,Wien, Planck, etc.
Know distances and sizes given for various quantities
Arcmeasure: Sexagesimal system: degrees, arcminutes, and arcseconds
Decimal system for arcmeasure and time.
Know what diurnal circles are and how they are related to the declination of and object.
For each angle we have learned,
know from where the angle is measured (zero location),
in what direction it is
measured, and in what units it is expressed.
Be able to:
Locate objects on a rectangular chart using RA and DEC.
Apply, recognize, and use , hour angle circle, RA, and DEC
Celestial Equator (CE)
Celestial Poles (NCP & SCP)
Declination (Dec. or Greek delta)
Equinoctial colure (EC)
Hour circles (HC)
Right Ascension (RA or Greek alpha)
Zenith and nadir
Celestial horizon (CH)
Circumpolar stars (perpetual apparition or occultation)
Diurnal Circle
Diurnal Motion
Hour angle (HA)
Local celestial meridian (LCM)
Obliquity of the ecliptic
The equinoxes and solatices
Sample Questions ( Don't ask me for the answers, find them):
1. Plot the position of a star on
a star chart given the RA and Dec.
2. Define astronomical unit.
3. What is the approximate
radius of the solar system in AU.
4. How many stars are there
in the Milky Way Galaxy?
5. What factors determine
the strength of the gravitational interaction?
6.
7.
8. In general, what
are the Laws of Physics?
9. What is the radius
of the solar neighborhood in parsecs?
10. What force determines the structure
of the atom?
11. How many stars are there in
the Solar System?
12.
13. What causes every object in
the sky to rise in the east and set in the west once a day?
14.
15. How long does it take for a
star to move 55 degrees along its daily path in the sky as
a result
of the Earth's rotation?
16. What are circumpolar stars?
17. What is a force?
18.
19. Compute the radius vector and
true anomaly of a planet for a definte time after perihelion,
given the period, the semi-major axis and eccentricity of the orbiit.
20. What is stellar diurnal motion
and what causes it.
21. What causes the Earth's axis
of rotation to precess.
22. What is the length of the precession
period for the Earth.
23.
24.
25
26. Describe the distribution of
galaxies throughout the universe.
27. List the 4 fundamental
forces at work in the universe.
28. Give a statement for each
of Newton's laws of motion.
29. What time does the planet
Mars rise if it has an elongation of 145o E?
30.
31 what are Kirchhoff's
Laws of spectroscopy?
32. What is the principle
of spectrochemical analysis
33. What has been found to
be the chemical composition of stars?
34. Approximately how many
stars are there in the solar neighborhood?
35. Compute the number of atoms that have a speed v over
an interval dv for a given temperature.
40. Explain the difference between
the Wien Law and Planck's Law of
thermal
radiation?
41. Compute the monochromatic flux
emitted by an incandescent body for a given
temperature and wavelength.
42. Use the inverse square
law to compute the distanc of a star when given the measured
flux, radius and temperature of the star.
43. What are the factors the
determine the strength of a spectral line?
44. How are the absorption lines
formed that are in the spectra of stars?