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What is absolute brightness?
How bright the star actually is
What is the doppler effect?
Louder as approaching, quiet as leaving
What is temperature? (Specific)
Kinetic energy (speed) of molecules. Greater speed=higher temps
Which actress is the main character in Mean Girls?
Lindsay Lohan
What is used to plot a stars' luminosity vs brightness?
HR diagram
What is luminosity?
Total amount of energy emitted by a star every second. (brightness)
Light years measure ______________ not time.
Distance
The further away the star is from Earth, the ___________ it will appear.
Dimmer
What is apparent brightness?
How bright the star appears from Earth
What is the smallest bone in the human body?
Stapes
What is parallax?
Apparent difference in position of an object when viewed in different locations.
Name 3 categories of stars.
Giant, supergiant, dwarf
What is parallax used for?
To calculate the distance from Earth or Sun to another star.
What animal can sleep while standing up?
Cow
90% of stars fall under which category on an HR diagram?
Main sequence
How are stars placed in different classes? 2 reasons
Stars on the main sequence line fuse _______ to ______. Massive stars will burn ________ than smaller stars.
H to He. Quicker
What do astronomers use to determine spectral type, temp, chemical composition and velocity of a star?
Spectroscopy
Which city hosted the 2012 summer olympics?
London
Which animal can clean its own ear with its tongue?
Giraffe
How far away is Betelgeuse from Earth with a parallax of 0.007 arcseconds?
142.85 parsecs
The greater the mass of a star the more______________ it will be.
Luminous
What star category is found on the bottom left of an HR diagram?
White dwarf
Which country consumes the most chocolate per capita?
Switzerland
What was the first toy to be advertised on TV?
Mr. Potato Head