Our Closest Star
The name of our closest star.
What is "Sol"?
The brightness of a star
What is magnitude?
A small to medium sized star?
What is a dwarf?
Stars that regularly or repeatedly change in magnitude.
What are variable stars?
The distance light travels in one year.
What is a light year?
The distance from the earth to the sun (miles)
What is 98 million?
How bright a star appears to us
What is apparent magnitude??
A star that is ten to hundreds of times larger than the sun
What is a giant?
What are protostars?
The collapsed core of a supernova consisting of a dense ball of tightly compacted neutrons.
What is a neutron star?
The two main gases found in the sun
What are hydrogen and helium?
How bright a star really is
What is absolute magnitude?
A star that has stopped fusing H and is about to start burning He has to become this .
What are red giants?
Formed by the collapse of a supergiant that has a gravitational force so strong that not even light can escape.
What is a black hole?
The process that converts hydrogen into helium
What is fusion?
The color of the coolest stars
What is red?
The next closest star to our sun
What is Proxima Centauri?
A star explodes, becoming 1000s of times brighter
What is a super nova?
A rapidly spinning neutron star that flings pulses of energy into space.
What is a pulsar?
What is green?
A star's color is most closely related to this
What is surface temperature?
The method of determining the distance from earth to a star based on the star when viewed from different angles.
What is a parallax?
The death of a star leaves this behind...
What is a white dwarf?
these guys found the cosmic background radiation sound
Wilson and Penzias