Types of Stars 1
The fuel of a normal-sized, middle-aged star like our sun.
What is hydrogen?
A "star" that never actually starts the fusion process.
What is a brown dwarf?
This type of telescope uses mirrors to collect and focus light.
What is a reflector?
This is the unit based on the average distance of Earth from the sun.
What is the astronomical unit or AU?
The invisible backdrop that we consider all stars to be on when discussing coordinates is known as this.
What is the celestial sphere?
A very massive star that is very hot.
What is a blue supergiant?
A theoretical "star" that remains after a white dwarf stops glowing.
This type of telescope uses lenses to collect and focus light.
What is a refractor?
This is the term given to the distance that light travels in one year.
What is the light year?
This is used to measure the angle north or south of the celestial equator.
What is declination?
A very low mass star that never really shines very bright, but does undergo nuclear fusion.
What is a red dwarf?
A star that remains after a relatively massive star dies and collapses inward with so much force that electrons and protons get squeezed together.
What is a neutron star?
This type of telescope collects radio waves rather than visible light.
What is a radio telescope?
This is the name of the method used to find distances to stars.
What is triangulation?
This is used to describe the position of a celestial object east of a fixed point.
A star that remains after a normal-sized star runs out of nuclear fuel, but still shines because of left-over energy that radiates out.
What is a white dwarf?
An exploding star.
What is a supernova?
This is the device used to bend light to a focal point in a refracting telescope.
What is a lens?
This is the distance to a star, measured in AUs when the viewing angle on June 21 and December 21 is 89.8 degrees.
What is 286.5 AU?
What is a constellation?
A star that forms when a normal-sized star runs out of hydrogen fuel and starts fusing helium.
What is a red giant?
The remains of a very massive star after it has exploded and collapsed back in on itself.
What is a black hole?
Big observatories are built high in the mountains to reduce the amount of this kind of pollution.
What is light?
This is a common unit of astronomical distance that has something to do with an arc second, and is equal to about 3.26 lightyears.
What is the parsec?
This is the zero mark for right ascension.
What is the vernal (spring) equinox?