Vocabulary
A space object that gives off its own heat and light
What is a star?
This special star is classified as a yellow dwarf, and is a medium-sized star.
What is the sun?
This star is 8.3 light-minutes away.
What is the sun?
How bright a star appears compared with other stars when all are viewed from Earth
What is apparent brightness?
This kind of star lasts approximately ten billion years.
What is a yellow star?
The second closest star to Earth, at 4.2 light-years away. Its light it produces right now will not be seen from Earth for over 4 years from now.
What is Proxima Centauri?
How bright a star is from a standard distance of 32.6 light-years
What is absolute brightness?
These are most of these kinds of stars in the Milky Way galaxy?
What are red stars?
The star that appears brightest to the unaided eye in the Northern Hemisphere.
What is Sirius or the Dog Star?
The distance that light travels in one Earth year
What is a light-year?
Rigel, this kind of star, is 25 times larger than the sun
What is a blue giant?
This star is a blue giant, 25 times larger than the sun.
What is Rigel?
Bonus: An event during which the moon's shadow blocks all or some of the sun's light from reaching Earth
What is a solar eclipse?
This kind of star uses up its energy quickly and becomes cooler red giants.
What is a blue giant?