Brad Pitt
Tom Hanks
Cameron Diaz
Robert De Nero
Natalie Portman
100
A medium temperature star is about _________ degrees Celsius.
What is 5,500.
100
Today __________ are not only used for entertainment but to discover other things in the night sky.
What is constellations.
100
_________-An imaginary pattern of stars in the sky. (Vocab)
What is constellation.
100
_________ are not very hot but so they apear near the bottom of the the diagram.
What is White Dwarfs.
100
White Dwarfs are out the size of _________.
What is Earth.
200
In space light travels at about ________ km per second.
What is 300,000
200
Stars are mostly made out of __________.
What is Hydrogen.
200
A stars ________ brightness is the brightness the star would have from a standard distance from Earth.
What is Absolute.
200
A stars _________ brightness is how bright it is when seen from Earth.
What is Apparent.
200
The hottest stars are about _________and they are about 20,000 degrees Celsius
What is Bluish.
300
Finding a stars _______________ brightness is harder then finding its _________ brightness.
What is Absolute, Apparent.
300
_________ and __________ can be found near the top of the H-R diagram.
What is Giants and Supergiants.
300
__________-An instrument that separates light into colors and makes an image of the resulting. (Vocab)
What is Spectrograph.
300
How bright a star looks from Earth depends on both its ____ from Earth and how _______ the star is.
What is distance and bright.
300
__________ stars are smaller and 20 km in diameter.
What is Neutron.
400
Ejnae Hertzsprung lived in _______ and Henry NorRis Russell lived in the ______
What is Denmark, U.S..
400
About ______ years ago the _-_ diagram was invented.
What is 100, H-R
400
Hertzsprung-Russell Diagram- A graph relating the __________ and ________ brightness. (Definition)
What is surface, absolute.
400
All stars are huge _______ of glowing ______.
What is spheres,gas.
400
Characteristics used to classify stars include ________, _______, _________, _________, and _________. (Name all)
What is color, temperature, size, composition, and brightness.
500
the distance light travels in a year is _____ _______ ____ km.
What is 9.5 million million.
500
The coolest stars are about _______ degrees Celsius and are __________.(Color and Temperature)
What is 3,200, red.
500
DAILY DOUBLE The chemical composition of most stars is about ______ hydrogen, _______ helium, and ______ other elements by mass.
What is 73%, 25%, 2%.
500
_______ ________- A diagonal area on an H-R diagram that includes more than 90% of all stars (Vocab)
What is Main Sequence.
500
Astronomers use a unit called the _____ _______ to measure the distance between stars.
What is Light Year.
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