Astronomy Ch.3

Primary tabs

Kat K's picture

Astronomy Ch.3


Bookmark to learn: Login to use bookmarks.

Bookmark to learn: Login to use bookmarks.

Add to collection ... add Astronomy Ch.3 to your collections:

Help using Flashcards ...just like in real life ;)

  1. Look at the card, do you know this one? Click to flip the card and check yourself.
  2. Mark card Right or Wrong, this card will be removed from the deck and your score kept.
  3. At any point you can Shuffle, Reveal cards and more via Deck controls.
  4. Continue to reveal the wrong cards until you have correctly answered the entire deck. Good job!
  5. Via the Actions button you can Shuffle, Unshuffle, Flip all Cards, Reset score, etc.
  6. Come back soon, we'll keep your score.
    “Repetition is the mother of all learning.”
  7. Signed in users can Create, Edit, Import, Export decks and more!.

Bookmark to learn: Login to use bookmarks.

Share via these services ...

Email this deck:

Right: #
Wrong: #
# Right & # Wrong of #

the turning of a body on its axis (Earth is 24 hrs)


The movement of a body around a point outside of the body (Earth is 365 days)


the path the sun takes across the sky


12 hrs daylight, 12 hrs night, celestial equator tilted below the ecliptic 23.5 degrees

Vernal Equinox

longest daylight hours

Summer Solstice

not vernal

Autumnal Equinox

shortest daylight hours, celestial equator tilted above the ecliptic

Winter Solstice

when the celestial equator crosses the ecliptic


the closest point the earth is to the sun

Perihelion, January 4th

the farthest point the earth is from the sun

Aphelion, July 4th

any planet visible in the evening

Evening Star

any planet visible before sunrise

Morning Star


produce no light, reflect light from the sun, move in NEARLY circular orbits, located very close to the ecliptic, move from east to west to the counterclockwise rotation of the earth

first half of the moon phases


second half of the moon phases


starts the set of moon phases

New Moon

the time it takes the moon to return to the same position in the stars

Sidereal Period

29.5 days

the lunar cycle, also called a synodic period

27.3 days

the time it takes the moon to move around the earth (eastward)

when the moon moves through the shadow of the earth

Lunar Eclipse

region of total shadow on the moon


region of partial shadow on the moon


when the moon crosses between the earth and the sun

Solar Eclipse

gravitational forces of the sun and moon create _____on the planet


low amplitude tides that occur in first and third quarter when the sun and moon are at right angles from each other

Neap Tides

high amplitude tides when the sun and moon are on the same plane

Spring Tides

April, 2024

The Next Eclipse