Terms for "Midterm 3"
spiral arms, spiral density wave
radio waves, radio telescopes
interstellar dust
elliptical , spiral, irregular (dwarf) galaxies
Population II
HII region
globular , open cluster
bulge, halo, disk
zone of avoidance
Milky Way Galaxy
Hubble constant; Hubble law
Quasar
active galactic nuclei
dark matter
redshift, recession velocity
interstellar medium
Cosmic Background Radiation
negative, positive curvature; open, closed Universe
Type I, II supernova
classical nova
microwave photons
Big Bang
particle/antiparticle pairs
quarks, neutrinos
causal contact
black hole
Cepheid
21-cm radiation (line)
rotation curve
mass-to-light ratio
gravitational lens
Terms for Review section
differentiated
circumpolar
moon phases (all of them)
E-M radiation
spectrum
blackbody
Doppler shift
spectral type
ecliptic
equinox
zenith
altitude
corona
CNO cycle, p-p chain, triple-alpha reaction
fully convective
white dwarf
brown dwarf
red giant
pulsar, neutron star
planetary nebula
protoplanetary disk
Chandrasekhar mass
HR diagram
post-, pre-, main sequence
parallax
helium flash
Kepler's laws
precession
inclination, period, semimajor axis (orbits)
planetesimal, meteor, comet
flare, prominence
angular diameter
trigonometric parallax
luminosity vs. brightness
Balmer lines
eclipsing, spectroscopic, visual binary
habitable zone