Anatomy
Gravity and stuff
Distance
MISC
Final Jeopardy
100
Part of a spiral galaxy that contains all types of stars
disk
100
p2 = a3
Kepler's 3rd law
100
way to measure distance within solar system
radar
100
name this galaxy's type
regular spiral galaxy
200
place of many central stars in a spiral galaxy
bulge
200
relative speed of stars on the outskirts of galaxies
same speed as the center or fast(er)
200
method to measure distance of nearby star
parallax
200
Milky Way + Andromeda + other nearby galaxies
Local Group
300
star clusters in the halo
globular clusters
300
light bends because of this
gravitational lensing
300
DAILY DOUBLE
This general term describes an object whose brightness we know
300
Hubble's big FIRST discovery
a galaxy existed outside our own
400
place where few stars surround a spiral galaxy
halo
400
unknown particle that has gravity
dark matter
400
example of a standard candle
main sequence star or Cepheid variable star
400
Color of inactive stellar formation
red
500
object found at the very middle of a galaxy
supermassive black hole
500
what we found to confirm supermassive black hole's existence
x-rays OR stars orbiting an dark point in space
500
type of star whose brightness changes over time
Cepheid variable star
500
WHY blue/red indicates active/inactive stellar formation.
Blue stars live for a short time, so if you see them, that had to form in the very recent past. That implies that active stellar formation continues today.
500
PLACE BETS
two pieces of evidence for dark matter's existence