30.3 & 30.4 vocab Flashcards
jupiter
Jupiter is the fifth planet from the Sun and the largest in the Solar System
saturn
Saturn is the sixth planet from the Sun and the second-largest in the Solar System, after Jupiter
uranus
Uranus is the seventh planet from the Sun
neptune
Neptune is the eighth and farthest-known Solar planet from the Sun
dwarf planet
a celestial body resembling a small planet but lacking certain technical criteria that are required for it to be classed as such
comet
a celestial object consisting of a nucleus of ice and dust and, when near the sun, a “tail” of gas and dust particles pointing away from the sun.
asteroid
a small rocky body orbiting the sun
meteoroid
a small body moving in the solar system that would become a meteor if it entered the earth’s atmosphere.
sedna
a probable dwarf planet that orbits beyond the orbit of Neptune
extraterrestrial life
life that may exist on other planets
which space probes flew past jupiter in 1979
Voyager 1 and Voyager 2
which space probes reached jupiter in 1995
Galileo
what did the voyager probes and Galileo study
Jupiter and its moons
how many known moons does jupiter have
79 moons
what are the four galilean moons
Io, Europa, Ganymede, and Callisto
which of the galilean moons is the largest in the solar system
Ganymede
which of the galilean moons most likely have water trapped beneath their surface
Europa’s
which of the galilean moons is the most volcanically active object in the solar system
Io
what is saturn’s most commonly known feature
rings
what is saturn’s rings made out of
pieces of comets, asteroids or shattered moons
how many moons does saturn have at least
82
what is the name of saturn’s largest moon
titan
what is the name of the spacecraft that approached saturn in 2004
Cassini spacecraft
what was cassini’s mission
observe weather and seasonal changes
what was the huygens mission
explore Saturn
which space probe is the only probe to study uranus
Voyager 2
how many moons does uranus have
27
how is uranus axis tilt
97.77 degrees
what color is uranus
blue green
which space probe is the only probe to reach neptune
Voyager 2
what makes neptune a bluer color then uranus
2.7 times more energy
how many moons does neptune have
14
what is the largest moon neptune has
triton
what are the 3 dwarf planets
Ceres, Pluto, and Eris
what is the bright cloud of a comet called
coma
where does comets originate
oort cloud
when meteoroids enter earths atmosphere what are they called
shooting star
when a meteor strikes earth surface, what are they called
meteor
what does AU stand for
Astronomical Unit
what is and AU equal
9.296e+7 miles
