Photometry (concept)

Photometry is the quantitative measure of brightness of an object in an astronomical images.

Most coherent, developed, tested materials

• Movie (10:50) on Photometry, part of the "Filters, Magnitudes, Colors, Oh My!" playlist -- Dr. Luisa Rebull, 2020
• Movie (3:01) on Detections and Limits, part of the "Filters, Magnitudes, Colors, Oh My!" playlist -- Dr. Luisa Rebull, 2020
• Photometry overview -- Dr. Luisa Rebull (2010?)

Somewhat less coherent (or less standalone) materials

Aperture Photometry Overview -- Dr. Luisa Rebull (2010?)

PSF photometry - To come. Basic steps are essentially the same (detect objects, center up, determine what is background/source, sum up light for the source, check your results). More complicated than aperture photometry because you have many more free parameters than for aperture photometry.

need to add document i made for olivia and tom 2019

Other sources of interest

• Your local astronomy textbook or (if neccessary) the Wikipedia entry for photometry is probably a good place to go for a longer general introduction.
• The IRAF manuals are old but still very, very valid. If you can pay attention to the concepts and ignore the IRAF-specific instructions, you can learn an awful lot from these manuals. Oldies but goodies.
• https://www.aavso.org/
• http://gtn.sonoma.edu/members/basic.php
• http://lcogt.net/en/book/introduction-photometry
• http://www.minorplanet.info/ObsGuides/Misc/photometryguide.htm