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What yellow stars become after they've used up all of their nuclear fuel

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When a star explodes at the end of its life cycle

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Any star that has great intrinsic luminosity and has a relatively huge size

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The motion of a star that's relative to the sun

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Massive self-luminous celestial body of gas that shines with radiation that comes from its internal energy sources

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A chart or graph that shows the intensity of the light that's being emitted over a range of energies

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Wavelength of light is stretched towards the red part of the light spectrum

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Astronomical object that has a very high luminosity that's found in the center of some galaxies

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Compact objects in the shape of a sphere that are roughly the size of a large city but have more mass than the sun

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Class of bright nebulae that are expanding the shells of luminous gas expelled by any dying stars

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Angle between Earth at one point in time compared to six months later

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Class of exploding stars whose luminosity temporarily increases by sever thousand times as much as normal

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Class of extremely dense, compact stars that are mostly composed of neutrons

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Enormous cloud of dust and gas that occupies the space between stars

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Continuous and distinctive band of stars that appear on plots of stellar color brightness

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Measure of the brightness of a star

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Distance that light travels in one year

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Any star that has a relatively large radius compared to its mass and temperature

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Systems of stars and other interstellar matter that make up the universe

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Series of bright lines superimposed on a continuous spectrum

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Difference between the frequency where sound or light waves leave a source

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Component of the universe whose presence is discerned from the gravitational attraction instead of the luminosity

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A series of dark lines superimposed on the continuous spectrum of a source

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Mysterious force that causes the rate of expansion of our universe to accelerate

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Study of astronomy

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Faint glow of light that fills the universe

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When dense gases or solid objects radiate heat

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Groupings of stars that form configurations or objects or creatures

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Stars that reside above the horizon and never rise or set

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Displacement of the spectrum of an approaching celestial body

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A place in space where there is such a strong gravitational pull that nothing can get out, including light

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The universe began as a single point but then expanded rapidly and is still continuing to expand

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Translation of a body from one absolute place to another

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The magnitude that a star would have if it were located at a distance of 10 parsecs

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The motion of a star across the celestial sphere at right angles to the viewer's line of sight

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How bright a star appears from Earth

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Characteristic pattern of dark lines that occur when electromagnetic radiation is passed through an absorbing medium into a spectroscope

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Vortex of gas on the surface of the sun that's associated with strong magnetic activity

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The central region where nuclear reactions consume hydrogen to form helium

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Records the composition of light emitted by star

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Emanation from the sun's corona that consists of a flow of charged particles

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Brief powerful eruption of particles from the sun's surface

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Cycle that the sun's magnetic field goes through about every 11 years

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Big explosion that happens on the sun

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Layer of the star that lies right outside the core where radiant energy is transferred from the core in the form of photons

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An eruption of incandescent gas from the sun's surface; visible during a total eclipse

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Antiparticle/antimatter counterpart to the electron

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The visible surface of the sun

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Process where two atomic nuclei are fused together releasing energy

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Subatomic particle similar to an electron with no electrical charge and a very small mass

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Area of space around a planter that is controlled by the planet's magnetic field

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Grainy appearance of the solar photosphere

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Major disturbance of Earth's magnetosphere

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Large expulsions of plasma and the magnetic field from the sun's corona

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The gaseous envelope of stars, typically visible during a total solar eclipse

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Region of turbulent plasma between a stars core and its photoshpere

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Transfer of heat through fluid; due to gravity a star's core is hotter than the rest of it

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Reddish gaseous layer above the photoshpere of stars; creates a star's outer atmosphere along with the corona

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A natural light display in Earth's sky that is mostly seen in high-latitude regions

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The northern lights; also referred to as polar lights or aurora polaris

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Southern hemisphere version of the aurora borealis (northern lights); also called the southern lights

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When objects rotate the opposite direction of others around it

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Geocentric model where Earth is the center of the universe

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The time it takes for a planet to complete one orbit around the sun

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Implies that the period for a planet to orbit the sun increases with the radius of its orbit

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The line between a planet and the sun sweeps equal areas in equal times

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Each planet's orbit about the sun is an ellipse

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German astronomer who discovered the three major laws of planetary motion

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The measure of an objects resistance to change its motion

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Model where the sun is at a central point of the solar system

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Force that pulls objects together; holds the planets in orbit around the sun

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Theory where the Earth is at the center of the solar system

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Circle where a planet moves and has a center that is carried on the circumference of a larger circle

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Measure of the amount that something deviates from a circle

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Astronomical model created by Nicolaus Copernicus; sun is the center of the universe with planets orbiting it. Also known as Copernican Heliocentrism

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Rise in the average temperature of Earth

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Scientist that studies climates

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A small area where the climate is different compared to the whole area's climate

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Climate that has cool summers and extremely cold winters

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Regions where there is great atmospheric variability

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Climate zone where there are high temperatures throughout the year

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Seasonal change in the direction of prevailing winds in a region

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Climate pattern that describes unusual warming of surface waters in eastern tropical Pacific Ocean

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Amount of heat needed to raise the temperature of 1 gram of substance by one degree Celsius

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Long-term weather pattern of a specific area

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Shows the weather that's occurring at a specific time

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Signal that generates microwave radiation to detect objects

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Instrument that's carried by a balloon to different levels of the atmosphere, transmits measurements via radio

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Instrument that says the wind direction

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Instrument that measures wind speed

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Instrument that measures atmospheric pressure

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Instrument that tells temperature

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Very strong rotating winds, that appear with a funnel-shaped cloud

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Tropical storm that has very strong wind

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A storm that consists of thunder, lighting, and heavy rain

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Form when there is a large temperature difference between two air masses

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A cold front takes over a warm front

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A cold front and warm front are pushing against each other but there is no movement

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Boundary between a warm air mass and a retreating cold air mass

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Cold mass of air at ground level that replaces a warm mass of air