SBCC Astronomy Exam 2 With Complete Solutions 100% Verified
Kuiper belt Object (KBO) - ANSWER small icy rocky body orbiting the Sun beyond
Neptune in Kuiper Belt.
Exoplanet - ANSWER Planet orbiting a star that lies outside of the solar system
dwarf planet - ANSWER Pluto (has 5 moons in KBO)
Eris (has 5 moons)
Ceres (in asteroid belt)
asteroid belt - ANSWER the region of the solar system between the orbits of Mars and
Jupiter, in which many asteroids are located
Kuiper belt - ANSWER that part of the solar system, lying just beyond the orbit of
Neptune, which contains thousands of small, icy bodies
Scattered disk - ANSWER Composed of ice balls from sent from Neptune into
highly-tilted orbits, it overlaps the Kuiper belt on its inner edge and extend 150 km from
the Sun. It had short period comets.
Oort cloud - ANSWER A spherical region of comets that surrounds the solar system
terrestrial planets - ANSWER Mercury, Venus, Earth, Mars
gas giants - ANSWER Jupiter, Saturn
Ice Giants - ANSWER Uranus and Neptune
uncompressed density - ANSWER the density a planet would have if its gravity did not
, compress it
planetesimals - ANSWER Small planetary objects that form through the action of gravity
during the birth of a solar system
trojan asteroids - ANSWER group of asteroids that travel in front of and behind Jupiter
Langrange points - ANSWER when gravitational force from 2 bodies is considered
together
Earth-crossing asteroids - ANSWER An asteroid whose orbit crosses that of Earth.
Earth-crossing asteroids are also called Apollo asteroids, after the first asteroid of this
type discovered.
C-type asteroids - ANSWER Carbonaceous asteroids.they are the most common variety,
forming around 75% of known asteroids.
S-type asteroids ANSWER This class of asteroid comprises about 17% of the known
asteroids in the solar system. Its surface composition consists of nickel-iron with
iron-silicates and magnesium-silicates. The albedo of this type is lighter, about 0.1 -
0.22.
M-type asteroids ANSWER metallic asteroids are reddish in color,8% of the solar
system, makeup most of the rest of the asteroids and dwell in the middle region of the
main belt. They seem to be made up of nickel and Iron Asteroids range greatly in size
from less than 33 feet to the largest asteroid Ceres, with a size of 587 miles
Albedo - ANSWER the reflective ability of a surface to reflect light
comet nucleus - ANSWER the center of a comet
Kuiper belt Object (KBO) - ANSWER small icy rocky body orbiting the Sun beyond
Neptune in Kuiper Belt.
Exoplanet - ANSWER Planet orbiting a star that lies outside of the solar system
dwarf planet - ANSWER Pluto (has 5 moons in KBO)
Eris (has 5 moons)
Ceres (in asteroid belt)
asteroid belt - ANSWER the region of the solar system between the orbits of Mars and
Jupiter, in which many asteroids are located
Kuiper belt - ANSWER that part of the solar system, lying just beyond the orbit of
Neptune, which contains thousands of small, icy bodies
Scattered disk - ANSWER Composed of ice balls from sent from Neptune into
highly-tilted orbits, it overlaps the Kuiper belt on its inner edge and extend 150 km from
the Sun. It had short period comets.
Oort cloud - ANSWER A spherical region of comets that surrounds the solar system
terrestrial planets - ANSWER Mercury, Venus, Earth, Mars
gas giants - ANSWER Jupiter, Saturn
Ice Giants - ANSWER Uranus and Neptune
uncompressed density - ANSWER the density a planet would have if its gravity did not
, compress it
planetesimals - ANSWER Small planetary objects that form through the action of gravity
during the birth of a solar system
trojan asteroids - ANSWER group of asteroids that travel in front of and behind Jupiter
Langrange points - ANSWER when gravitational force from 2 bodies is considered
together
Earth-crossing asteroids - ANSWER An asteroid whose orbit crosses that of Earth.
Earth-crossing asteroids are also called Apollo asteroids, after the first asteroid of this
type discovered.
C-type asteroids - ANSWER Carbonaceous asteroids.they are the most common variety,
forming around 75% of known asteroids.
S-type asteroids ANSWER This class of asteroid comprises about 17% of the known
asteroids in the solar system. Its surface composition consists of nickel-iron with
iron-silicates and magnesium-silicates. The albedo of this type is lighter, about 0.1 -
0.22.
M-type asteroids ANSWER metallic asteroids are reddish in color,8% of the solar
system, makeup most of the rest of the asteroids and dwell in the middle region of the
main belt. They seem to be made up of nickel and Iron Asteroids range greatly in size
from less than 33 feet to the largest asteroid Ceres, with a size of 587 miles
Albedo - ANSWER the reflective ability of a surface to reflect light
comet nucleus - ANSWER the center of a comet
