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written by Laurence Marschall, Glenn Snyder, P. Richard Cooper, Michael Hayden, and Rhonda Good
educational validator: HelenMarie Hofman
This lab illustrates how HR diagrams of star clusters are used to determine the distances and ages of the clusters. Students use real photometric data, star positions, and data analysis software to fit HR diagrams to various models. If desired, students can also measure the magnitudes and colors of the cluster stars using a simulated telescope, thus learning how astronomers collect the data.

This is part of a larger collection of simulations, Project CLEA.

Please note that this resource requires at least version 95 of MS-Windows.
Subjects Levels Resource Types
Astronomy
- Stars
= Hertzsprung-Russell Diagram
= Star Clusters
- Lower Undergraduate
- High School
- Upper Undergraduate
- Instructional Material
= Curriculum
= Instructor Guide/Manual
= Laboratory
Intended Users Formats Ratings
- Learners
- Educators
- application/exe
- application/pdf
- image/gif
- image/jpeg
- text/html
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Access Rights:
Free access
Restriction:
© 1997 Gettysburg College
Keywords:
absolute magnitude, star age
Record Cloner:
Metadata instance created August 9, 2008 by Alea Smith
Record Updated:
August 11, 2008 by Bruce Mason
Last Update
when Cataloged:
August 9, 2008
Other Collections:

ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
L. Marschall, G. Snyder, P. Cooper, M. Hayden, and R. Good, (1997), WWW Document, (http://public.gettysburg.edu/~marschal/clea/hrlab.html).
AJP/PRST-PER
L. Marschall, G. Snyder, P. Cooper, M. Hayden, and R. Good, CLEA: H-R Diagrams of Star Clusters (1997), <http://public.gettysburg.edu/~marschal/clea/hrlab.html>.
APA Format
Marschall, L., Snyder, G., Cooper, P., Hayden, M., & Good, R. (2008, August 9). CLEA: H-R Diagrams of Star Clusters. Retrieved August 2, 2014, from http://public.gettysburg.edu/~marschal/clea/hrlab.html
Chicago Format
Marschall, L, G. Snyder, P. Cooper, M. Hayden, and R. Good. CLEA: H-R Diagrams of Star Clusters. August 9, 2008. http://public.gettysburg.edu/~marschal/clea/hrlab.html (accessed 2 August 2014).
MLA Format
Marschall, Laurence, Glenn Snyder, P. Richard Cooper, Michael Hayden, and Rhonda Good. CLEA: H-R Diagrams of Star Clusters. 1997. 9 Aug. 2008. 2 Aug. 2014 <http://public.gettysburg.edu/~marschal/clea/hrlab.html>.
BibTeX Export Format
@misc{ Author = "Laurence Marschall and Glenn Snyder and P. Richard Cooper and Michael Hayden and Rhonda Good", Title = {CLEA: H-R Diagrams of Star Clusters}, Volume = {2014}, Number = {2 August 2014}, Month = {August 9, 2008}, Year = {1997} }
Refer Export Format

%A Laurence Marschall
%A Glenn Snyder
%A P. Richard Cooper
%A Michael Hayden
%A Rhonda Good
%T CLEA: H-R Diagrams of Star Clusters
%D August 9, 2008
%U http://public.gettysburg.edu/~marschal/clea/hrlab.html
%O application/exe

EndNote Export Format

%0 Electronic Source
%A Marschall, Laurence
%A Snyder, Glenn
%A Cooper, P. Richard
%A Hayden, Michael
%A Good, Rhonda
%D August 9, 2008
%T CLEA: H-R Diagrams of Star Clusters
%V 2014
%N 2 August 2014
%8 August 9, 2008
%9 application/exe
%U http://public.gettysburg.edu/~marschal/clea/hrlab.html


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Citation Source Information

The AIP Style presented is based on information from the AIP Style Manual.

The APA Style presented is based on information from APA Style.org: Electronic References.

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