Eclipses
Phases
Motions
Moon
Planets and Exos
100

This is when the Earth's shadow falls on the Moon

Lunar Eclipse

100

Length of a full lunar phase cycle (new-new)?

29.5 days

100

Another name for Kepler's First Law

Law of Ellipses

100

When the Moon glows faintly during a crescent phase, due to light reflected from Earth to the Moon

Earthshine

100

A planet outside our solar system

Exoplanet

200

Which eclipse leaves a "ring of fire?"

Annular eclipse

200

When the Moon is between the Earth and the Sun

New Moon

200

If you double the DISTANCE between two masses, the gravitational force becomes

one quarter as much

200

This is why we only see one side of the Moon always

The moon is "tidally locked" to Earth

200

Ms Hailey coaches this sport

Swim

300

This is when the Moon passes between Earth and the Sun, casting a shadow on Earth.

Solar Eclipse

300

When the Earth is between Moon and Sun

Full Moon

300

What is Ms. Hailey's favorite movie?

Twilight

300

This is why the Moon has no significant atmosphere

It's gravity is too weak to hold gas

300

This measures the dimming of a star as a planet passes in front.

transit method

400

This is why eclipses don't happen every month

The Moon's orbit is tilted about 5* relative to Earth's orbital plane

400

What is when the illuminated portion is increasing in illumination?

Waxing phrase

400

If you double the mass of one object (keeping distance the same) the gravitational force between them

becomes twice as much, or doubles

400

What moon changes "Jacob" into a werewolf?

Full Moon!

400

These are Jupiter-like size, but orbit very close to their star

Hot Jupiters

500

Why does a total lunar eclipse appear red

The Earth's atmosphere scatters blue light and lets red light reach the Moon.

500

What is the order of increasing illumination after a new moon?  

Waxing crescent--First Quarter--Waxing gibbous

500

What do PPP and aaa stand for in Kepler's Third Law?

P= orbital period, a=semimajor axis

500

This is why the Moon is covered in craters

Meteor/asteroid impacts

500

What method to detects changes in a star's speed due to gravitational tug by a planet

Radial Velocity Method (or Doppler method)

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