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written by
Diane Dutkevitch
In this activity students find a number of Cepheid variables in the galaxy M100. They then use their periods, average apparent magnitudes, and the Period-Luminosity relationships to determine the distance to M100. Then students can estimate the Hubble constant to find the age of the universe.
Subjects
Levels
Resource Types
Astronomy
- Cosmic Time and Distance
= Cepheids
- Cosmology
- Fundamentals
- Stars
- Lower Undergraduate
- Upper Undergraduate
- Instructional Material
= Activity
- Reference Material
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- Educators
- Learners
- text/html
- image/jpeg
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Keywords:
M100, age of the universe, cepheid variables, distances, galaxies, hubble constant, magnitudes, period luminosity
Record Creator:
Metadata instance created
January 20, 2004
by Patricia Monahan
Record Updated:
November 20, 2009
by Lyle Barbato
Citation Formats
ComPADRE is beta testing Citation Styles!
<a href="http://www.compadre.org/astronomy/items/detail.cfm?ID=823">Dutkevitch, Diane. Determining the Extragalactic Distance Scale .</a>
D. Dutkevitch, Determining the Extragalactic Distance Scale , WWW Document, (http://astro.wku.edu/labs/m100/ ).
D. Dutkevitch, Determining the Extragalactic Distance Scale , <http://astro.wku.edu/labs/m100/>.
Dutkevitch, D. (n.d.). Determining the Extragalactic Distance Scale . Retrieved May 21, 2013, from http://astro.wku.edu/labs/m100/
Dutkevitch, Diane. Determining the Extragalactic Distance Scale . http://astro.wku.edu/labs/m100/ (accessed 21 May 2013).
Dutkevitch, Diane. Determining the Extragalactic Distance Scale . 21 May 2013 <http://astro.wku.edu/labs/m100/>.
@misc{
Author = "Diane Dutkevitch",
Title = {Determining the Extragalactic Distance Scale},
Volume = {2013},
Number = {21 May 2013},
Year = {}
}
%A Diane Dutkevitch
%0 Electronic Source
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