Vocabulary I
The brightness of a star.
What is magnitude?
The scientific study of stars.
What is astronomy?
The name of the galaxy in which we live.
What is the Milky Way?
A group of stars that form a pattern.
What is a constellation?
Stars are glowing balls of gases that produce or reflect light.
The color of the hottest stars.
What is stars produce energy in the form of light and heat.
What are blue stars?
Stars that regularly or repeatedly change in magnitude.
What are variable stars?
These are the largest and brightest stars.
What are supergiants?
Contains two stars.
What is a binary system?
This telescope bends light to make objects seem larger.
What is a refracting telescope?
The difference between an asteroid and a comet.
What is an asteroid is made of irregularly shaped pieces of rock, metal, and dust, whereas a comet is a chunk of frozen gases, water, and dust that orbits the sun?
A neutron star that spins rapidly on its axis.
What is a pulsar?
Smaller stars, like the sun, are this type of star.
What is a dwarf star?
Three to four stars held together by gravity.
What is a multiple star group?
This telescope breaks starlight into its colors.
What is a spectroscope?
The difference between apparent magnitude and absolute magnitude.
What is apparent magnitude is how bright a star appears from Earth, whereas, absolute magnitude is how bright a star really is.
A cloud of dust, gases, and debris is called a ______.
What is a nebula?
An existing star that flares up and becomes brighter than normal.
What is a nova?
A large group of stars held together by gravity.
What is a star cluster?
Name this constellation.
What is Orion?
The difference between a meteoroid, meteor, and a meteorite.
What is a meteoroid is a rocky object in space smaller than an asteroid, a meteor is a meteoroid that has entered Earth's atmosphere, and a meteorite is a meteor that has hit the Earth's surface.
The measurement of a star's apparent movement over time is known as ______.
What is parallax?
The name for when a massive supergiant star collapses and disappears from space.
What is a black hole?
A huge star system that covers many light-years of space.
What is a galaxy?
Name this constellation.
What is Cassiopeia?
The relationship between the Milky Way and the Local Group.
What is the Milky Way is among the largest galaxy in a group of 30 galaxies moving together in a cluster?