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Important People
Important People/Stars
Stars
Misc. 1
Misc. 2
100
This person developed the relationship between redshift and stellar distance.
Who is Hubble?
100
All star clusters are held together by this.
What is gravity?
100
The actual brightness of stars.
What is absolute magnitude?
100
A cloud of gas or dust that can be seen against a background of stars.
What is nebula?
100
The distance light travels in a year.
What is light-year?
200
This individual created an early catalog of non-stellar objects and used M's to distinguish them.
Who is Messier?
200
A star that has a diameter 100 times larger than our sun.
What is a supergiant?
200
The apparent change in position of an object as one's viewing position changes.
What is parallax?
200
The study of how the universe began and how it has changed over time.
What is cosmology?
200
A pair of stars that revolve around each others and linked by gravity.
What are visible double stars?
300
This individual divided stars into six different ranks of magnitude.
Who is Hipparchus?
300
These two elements make up the bulk of most stars, including the sun.
What is helium and hydrogen?
300
Stars that are close to each other.
What are binary stars?
300
The stars that are found in the diagonal band of the H-R diagram.
What is main sequence?
300
What is the best way for calculating the distance to very dim, distant stars?
What is redshift?
400
This individual created the New General Catalogue listing over 13,000 nebulas and other stellar objects.
Who is Dreyer?
400
This person developed a system for naming stars that used Greek letters and Latin forms of the stars constellation names.
Who is Bayer?
400
What kind of star would an astronomer expect to find a stellar nursery?
What is protostar?
400
What stellar classification is expressed using Roman Numerals?
What is luminosity?
400
How old does the Standard Model of Cosmology believe our universe is?
What is 13.5 billion years?
500
This person wrote an equation for calculating the probability of extraterrestrial life that led to SETI.
Who is Drake?
500
This person proposed an idea that became the Big Bang theory.
What is Lemaitre?
500
A star's real motion, as seen on Earth, is a combination of its proper motion and this.
What is radial motion?
500
What two factors are used as the axes to plot stars on the H-R diagram?
What is temperature and luminosity?
500
What is common between pulsar and quasars?
What is both release radio waves?