Galaxies
The milky way is this type of galaxy
Spiral
Color of stars with the coolest surface temperatures
Red
A giant cloud of dust and gas in space is called a____________
nebula
3
hydrogen; helium
The light with the longest wavelength on the electromagnetic spectrum
Radio waves
Our solar system is in the center of the Milky Way Galaxy. True or False
False
The collapsed core of a massive supergiant star not massive enough to become a black hole
neutron star
___________are stars that are hot when formed but are quite small and therefore not very luminous
White dwarf
Galaxies with no arms but are round
Elliptical
The H-R diagram plots stars'_______and_______on a diagram.
temperature and luminosity
A Barred Spiral Galaxy has only two arms.
True or False
True
This type of galaxy has no clearly defined shape.
Irregular
Elements heavier than _______ can form during supernova explosions
Iron
A highly magnetized rotating neutron star that emits beams of electromagnetic radiation out of its magnetic poles.
pulsar