Solar System

Silicate rocks that broke & heated & created a layer of loose ground up rock on moon's surface.

The moon's orbital and rotational periods are equal. This is called ________

What moon shape is this?

During a _______ the moon passes between the earth & the sun.

The %age of incoming sunlight that the moon's surface reflects (7 percent).

Tarantula nebula photographed by Mayall tele. What is a nebula?

The ratio of the distance between the foci of planet's ellipse to the length of the major axis

_____ tides are higher than normal tides because the moon and sun are aligned with Earth.

Shape of the Earth's revolution around the sun.

Planets orbit the sun in a path shaped like an ellipse. This is ___________

Reason we have four seasons.

What is this a diagram of?

Earth's average distance from the sun is 1.496 x 10⁸km. This is called _____________

The point in Earth's orbit around the sun where it is farthest from the sun.

What geographic features on the Moon are most likely to be the oldest?

Planets move faster when close to the sun in their orbits & slower when farther away.

When does winter happen in the Northern Hemisphere?

The closest point in the moon's orbit to Earth is called _______

Between the new moon and full moon, when the moon is getting larger.

What moon shape is this?

As Mars orbits the sun, it appears to move backward during part of its revolution. This is

Moon dust spread out around impact craters and the longer ones.

The shadow that the moon casts on Earth during a solar eclipse is called the ________

The outer portion of the moon's shadow cast on Earth (some of the sun's light still reaches) __

Launched in 1996, still orbiting earth every 96 min--largest space based telescope.

The dark, smooth plains of the moon.

Mathematical relationship between size of a planet's ellipse & its orbital period: P²=a³

One side of the moon is always facing away from the earth.

The moon is near its farthest orbit from Earth & doesn't completely block the sun disk is a(n)

The farthest point in the moon's orbit to Earth is called ________

The Mayall telescope in Tucson, AZ has a 4-meter diameter mirror. It is what type of telescope?