Extra 1
A star's brightness as viewed from Earth.
apparent magnitude
The instrument separates light from the stars into its different colors.
spectroscope
The Milky Way galaxy is the closest neighbor of the other galaxies in ______.
The Local Group
This is formed when sunlight and solar wind carry released gas and dust particles.
tail
Depending on the time of year, a constellation is found in different parts of the sky due to the earth's ____.
revolution
A star's color is related to what?
Temperature
The smallest star group, which contains two stars held together by gravity.
binary system
The Milky Way is a/an _____ galaxy.
barred spiral
When an existing star flares and becomes brighter, it causes a/an _____.
nova
An asteroid cannot hold an atmosphere because of its weak ____.
gravity
The telescope that uses convex and concave lenses to bend light and make objects appear larger.
Refracting telescope
This describes what the size and number of the stars show about God.
They provide a testimony to the power, greatness, and glory of God.
The Milky Way includes the solar system and billions of stars, dust, and ____.
gases
Describe the job of an astronautical engineer.
to develop navigation and remote sensing systems for uncrewed space vehicles to travel greater distances.
A cloud of gases and debris that travels among the stars and glows from a light within is a/an _____.
nebula
A meteor that falls through Earth's atmosphere and hits Earth's surface.
Meteorite
A star's magnitude depends on this.
size, temperature, and distance from Earth
Galaxies are classified by their ____.
shape
When the extreme gravity at the center of a collapsing star is so large that gravity's force pulls everything into it, even light, a/an _____ is formed.
A variable star that changes in apparent magnitude when one star passes in front of another star is a/an ____.
eclipsing variable star
As hydrogen atoms combine to form helium atoms, a star releases energy as what?
heat and light
To determine absolute magnitude, scientists imagine all stars to be what from Earth?
the same distance
When the galaxy looks like a smooth, glowing disk or flattened sphere of stars, it is a/an ____ galaxy.
elliptical
When the pressure of a star's gravity causes the star to heat up quickly and explode, it causes a/an ____.
supernova
A variable star that has cycles of swelling and brightening, then shrinking and dimming, is a/an ____.
pulsating variable star