sci vocab for the 5th time Flashcards
Visible brightness of an object
apparent magnitude
Two stars orbiting one another
bionary star
small extremely dead star remnant with no light escapes
black hole
Layer of star between photosphere and Corona
chromosphere
group of stars with a recognizable pattern
constellation
top layer of star
Corona
process of splitting heavier nuclei into lighter nuclei
fission
process of combining nuclei
Fusion
graph relating to stellar characteristics of class, mass, temperature, etc.
Hertz Sprung - Russell diagram
energy output from surface of stars per second
luminosity
on the HR diagram the broad, diagonal band containing 90% of stars
Main
large clouds of interstellar gas and dust
Interstellar cloud
collapsed, dense core of star made up of mostly neutrons
neutron star
apparent position shift of object due to motion of observer
parallax
distance equal to 3.26 light years
parsec
lowest layer of star
photosphere
Arc of Gas ejected from Chromosphere
prominence
violent eruptions of radiation and particles associated with sunspots
solar flare
wind of charged particles flowing outward from star traveling throughout the solar system
solar wind
The rainbow when white light shines through a prism
Spectrum
dark spots on surface of star
sunspots
Massive explosion occurring when outer layer of star are blown off
Supernova
distance between two identical points on a wave
wavelength
average distance between Earth and Sun
astronomical unit
Orbits ratio of the distance between foci and length of the major axis
eccentricity
oval shape with two centers
ellipse
objects and size of 1 km to hundreds of kilometers
planetesimals
apparent backward movement of a planet
retrograde
Hot condensed object at center of nebula
protostar
A spinning neutron star exhibiting a pulsing pattern
pulsar
