The midterm has 45 questions, 22 T/F and 23 multiple choice. Bring a green scantron form (882-ES) to class, and a pencil. You may bring a calculator, but won't really need it. You may bring a "cheat sheet": one letter sized sheet of paper (both sides). This must be handwritten by you. It should not have any typed, printed, or copied material on it (and will be taken if it does). Include any equations, numbers, facts, concepts, figures, examples you like. Write as small as you like. You can direct what you put on it by examining the content of the test below (not necessarily in order).

The Content of Midterm 2

True-False

which wavelengths observed from ground/space

trigonometric parallax - how far out does it work

wavelength dependence of telescope resolution

advantages of space vs ground based telescopes

how interferometer works

effect on frequency of Doppler shift

effect of orbital inclination on spectroscopic binaries

energy transport in stars

end of Sun's life

source of heavy elements

intrinsic luminosity vs apparent brightness

fuel supply for low mass stars

white vs brown dwarfs

comparing luminosity of main sequence stars

properties of hot stars

cluster main sequences (open and globular)

    Harder

CNO cycle (general)

blackbody spectra from 2 temperatures

Doppler shift and color

spectroscopic binaries - what do they tell us

comparing different spectral types

Multiple Choice

properties of blackbody spectra

what produces absorption lines

peak wavelength of a spectral type of star (compared to Sun)

resolution of telescopes (numerical)

stellar birth (what goes on)

where nuclear burning takes place

Kepler's Third Law applied to binaries (numerical)

properties of main sequence stars

properties of low mass stars (less than Sun)

HR Diagram (6 questions), eg. brightest, biggest, mass, nuclear burning state, evolutionary state

usefulness of star clusters

luminosity/temperature/size law (numerical)

iron production

usefulness of binary stars

    Harder

mirrors vs lenses in telescopes

intrinsic luminosity vs apparent brightness (numerical)

when emission line spectra are seen

angular sizes of stars