ANSWERED CORRECTRY
apparent magnitude - Correct Answer What value represents the brightness of a star as viewed
from Earth?
meteorite - Correct Answer What is a chunk of space debris that has reached Earth's surface?
Nicolaus Copernicus - Correct Answer tWhich scientist proposed a system in which Earth and
all other planets orbit the sun?
five - Correct Answer How many planets were known to ancient astronomers?
Polaris - Correct Answer What star is located at the north celestial pole?
Phoebe - Correct Answer What is Saturn's outermost major moon, which orbits in the opposite
direction of most other moons?
nebular hypothesis - Correct Answer What evolutionary idea claims that the solar system
formed from a cloud of gas and dust?
Orbital speed decreases - Correct Answer What happens to Earth's orbital speed when Earth
approaches aphelion?
temperature - Correct Answer What is the primary factor that determines the brightness of
average stars in the main sequence?
cluster - Correct Answer What is the smallest type of structure formed by a group of galaxies?
, Altair - Correct Answer Which of the following stars is part of the Summer Triangle?
Triton - Correct Answer Which of Neptune's satellites experiences the coldest known
temperatures in the solar system?
pulsar - Correct Answer What is a rapidly rotating neutron star that emits directional beams of
radio waves?
It releases ultraviolet radiation - Correct Answer Why can the sun's transition region be studied
only using space-based solar observations?
red dwarf - Correct Answer What type of star is cool, small, and dim?
Ceres - Correct Answer What was the first object to be classified as an asteroid?
Mercury - Correct Answer Which planet travels most rapidly through its orbit?
angle at the star - Correct Answer If a right triangle were drawn with the sun, the earth, and a
star at the corners, as shown below, which angle would represent the stellar parallax?
Quasar - Correct Answer A star-like object believed to be made up of a large black hole
surrounded by a glowing ring of gas is a (n) ?
Neptune - Correct Answer The only planet to be discovered mathematically before it was seen
is