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Spectra
written by James Kaler
Spectra is a very informative website about how astronomers use spectra to  understand what stars are made of, their structures, and their evolution.  The page begins with an introduction to the electromagnetic spectrum and then goes into great detail about the properties of light.  Then it talks about how matter both creates and destroys radiation.  Then it discusses how to interpret absorption and emission lines.   The website ends with how astronomers use spectra to understand stars, galaxies,  other objects in the universe.
http://stars.astro.illinois.edu/sow/spectra.html
Subjects Levels Resource Types
Astronomy
- Fundamentals
= Spectra
- Stars
Optics
- Color
- Lower Undergraduate
- High School
- Informal Education
- Upper Undergraduate
- Instructional Material
= Lecture/Presentation
- Reference Material
Intended Users Formats Ratings
- Learners
- Educators
- text/html
- image/jpeg
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Additional Information
image credit: N.A.Sharp, NOAO/NSO/Kitt Peak FTS/AURA/NSF; image source. This resource was featured by the Physics To Go collection from January 1, 2007 until January 16, 2007. View the feature here!


Access Rights:
Free access
Restriction:
© 1998 James B. Kaler
Keywords:
absorption, electromagnetic, emission, luminosity, photon, radioactive, spectrum, tutorial
Record Creator:
Metadata instance created February 23, 2004 by Patricia Monahan
Record Updated:
November 17, 2009 by Lyle Barbato
Other Collections:

ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
J. Kaler, (1998), WWW Document, (http://stars.astro.illinois.edu/sow/spectra.html).
AJP/PRST-PER
J. Kaler, Spectra (1998), <http://stars.astro.illinois.edu/sow/spectra.html>.
APA Format
Kaler, J. (1998). Spectra. Retrieved May 1, 2025, from http://stars.astro.illinois.edu/sow/spectra.html
Chicago Format
Kaler, James. Spectra. 1998. http://stars.astro.illinois.edu/sow/spectra.html (accessed 1 May 2025).
MLA Format
Kaler, James. Spectra. 1998. 1 May 2025 <http://stars.astro.illinois.edu/sow/spectra.html>.
BibTeX Export Format
@misc{ Author = "James Kaler", Title = {Spectra}, Volume = {2025}, Number = {1 May 2025}, Year = {1998} }
Refer Export Format

%A James Kaler %T Spectra %D 1998 %U http://stars.astro.illinois.edu/sow/spectra.html %O text/html

EndNote Export Format

%0 Electronic Source %A Kaler, James %D 1998 %T Spectra %V 2025 %N 1 May 2025 %9 text/html %U http://stars.astro.illinois.edu/sow/spectra.html


Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.

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.

The Chicago Style presented is based on information from Examples of Chicago-Style Documentation.

The MLA Style presented is based on information from the MLA FAQ.
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