life cycle of stars

life cycle of a low mass star

stellar nebula, low mass main sequence, red giant, planetary nebula, white dwarf

life cycle of a high mass star

stellar nebula, high mass main sequence, red supergiant, supernova, neutron star OR black hole

nebula gas composition

65% H & 30% He

what is the nebula?

interstellar gas and dust, birthplace of stars

how far/where is the sun

in Orion arm and about 26,000 light years away

what are the types of galaxies

spiral, elliptical, and irregular

how are stars classified

with 7 spectral classes based on their mass, size, color, and surface temperature

what is the sun’s spectral class

G

What is one AU based off of

the average distance from the sun to the earth

what are sunspots

areas where magnetic field is stronger than earth’s and cooler than surrounding areas

layers of the sun

core, radiative zone, convective zone, photosphere, chromosphere, corona

Which characteristics apply to small stars, check all that apply

small mass, long lifespan, end life as white dwarf

Which characteristics apply to large (massive stars)

large mass, short lifespan, end life as neutron star or black hole

what is a stellar nebula

massive cloud of dust and gas where stars are born

What are the next three steps for our Sun?

Red Giant, Planetary Nebula, White Dwarf

According to the H-R diagram which star type has the highest luminosity?

Blue Supergiants

what layer of the sun can we see

photosphere

hottest layer of the sun

the core