Final Review Flashcards
The Milky Way galaxy has a ___ shape.
spiral
What is unusual about the tilt of Uranus?
Uranus is tilted almost 90 degrees, as if it were a barrel rolling around the sun.
The time from new moon to new moon is ___.
29.5 days
List the five planets that can be seen with unaided eyes:
Mercury, Venus, Mars, Jupiter, Saturn
The Hubble Space Telescope has a mirror ___ in diameter.
8 feet
Identify the constellation Ursa Major.
The diameter of the moon is about __ the diameter of the earth.
¼
A large hurricane has been raging on Jupiter for over 400 years. It can be seen through an Earth-based telescope and is known as ___.
The Great Red Spot
Which is larger, Earth or Mars?
Earth
Identify the constellation Leo
Identify the star Arcturus
Albert Michelson devised a way to measure the size of stars using interference of ___ ___.
light waves
Extrasolar planets are planets that are ___ our solar system.
outside
The average distance from the earth to the moon is ___ miles.
240,000 miles
Name the astronomer who described the shape of a planet’s orbint with his first law.
Kepler
What is the shape of a planet’s orbit?
elliptical
The density of the Jovian planets is less or more than the density of earth.
less
List the first four terrestial planets in order from the sun:
Mercury, Venus, Earth, Mars
The Little Dipper is part of the constellation ___ ___.
Ursa Minor
During Edmund Halley’s time, the most mysterious objects in the solar system were ___.
comets