Vocabulary
The branch of science that deals with the physical universe beyond Earth's atmosphere.
What is Astronomy.
The surface of the sun is_________, which consists of super hot matter that is neither solid nor liquid nor gas.
What is Plasma.
The moon is the _________________ of Earth and is the closest of all the astronomical bodies.
What is Satellite.
Hotter stars are more ___________ in color and cooler stars are ___________.
What is blue and red.
True or False --- A comet does not have a tail when it is far from the sun
True
A force of attraction existing between any 2 masses.
What is Gravity.
The gaseous layer surrounding the Earth or another heavenly body is called the
What is Atmosphere
The Moon rotates on its axis at the same rate as its revolution around Earth. The same rotation and revolution rate is called,
What is Synchronous Rotation
Wavelengths of light that are not visible to the human eye.
What is ultraviolet light
When stars experience a time of massive eruption, creating larger amounts of light than they normally do.
What is a nova or supernova.
A natural or artificial body orbiting a planet or star.
What is a Satellite.
Sometimes large towers of fire, called ___________, shoot out from the photosphere.
What are Solar Flares.
What is Waxing.
This group of planets do not have planetary rings.
What are terrestrial plants
Planets that orbit other stars.
What are Extrasolar or Exoplanets.
The amount of light or radiation reflected by a surface, typically that of a planet or moon.
What is Albedo.
What are Radiative zone and Convective zone.
Because the moon rotates more slowly on its axis as compared to Earth, it is more ________________ in shape.
What is Spherical.
A system of 2 stars that orbit one another because of their mutual gravity.
What is a binary star.
Patterns of stars that can be seen during certain seasons of the year.
What are Constellations.
An organized system of millions or billions of stars, gas, solar systems, and dust that are held together by gravitational attraction.
What is a Galaxy.
There are 2 layers in the atmosphere above the sun's photosphere. The first layer is the chromosphere, the _____________ is the outermost area of the sun's atmosphere.
What is the Corona.
During a lunar eclipse, Earth's shadow, called an ______________, is just a bit larger than the Moon.
What is an Umbra.
Star that is smaller than a white dwarf, spins very rapidly, and is extremely dense and are sometimes called pulsars.
What is a neutron star.
Contains two glass lenses that bend light as it passes through forming an image.
What is a refracting telescope.