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Astronomy Final

Horizontales
The star around which the earth orbits.
A phenomenon where electromagnetic radiation from an object undergoes an increase in wavelength.
The natural satellite of the earth, visible (chiefly at night) by reflected light from the sun.
Discovered the law of motion.
A small very dense star that is typically the size of a planet.
No longer a planet.
The trapping of the sun's warmth in a planet's lower atmosphere.
An area of such immense gravity that nothing—not even light—can escape from it.
An astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.
Type of galaxy shape.
Has been called the "father of observational astronomy."
Measure a star's apparent movement against the background of more distant stars as Earth revolves around the sun.
Verticales
Third planet from the sun.
A large planet of relatively low density consisting predominantly of hydrogen and helium, such as Jupiter, Saturn, Uranus, or Neptune.
The brightness of a star in comparison with that of the sun.
The scatter plot of stars showing the relationship between the stars' absolute magnitudes or luminosities versus their stellar classifications or effective temperatures.
The cosmic explosion that is hypothesized to have marked the origin of the universe.
A type of star that pulsates radially, varying in both diameter and temperature and producing changes in brightness with a well-defined stable period and amplitude.
An astronomical body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity.
The point in the sky or celestial sphere directly above an observer.
Astronomer best known for his laws of planetary motion.
Type of galaxy shape.
There are thought to be 200 billion in the observable universe.
Type of galaxy shape.
The total amount of energy that crosses a unit area per unit time. Measured in joules per square meter per second.