Stellar photometry in an introductory physics lab (or, translating flux into magnitudes)

Author:

Sirola Christopher1ORCID

Affiliation:

1. University of Southern Mississippi , Hattiesburg, MS

Abstract

Magnitudes—how astronomers express brightnesses of stars—are confusing to those unfamiliar with them, to say the least. They use a modified version of base-10 logarithms. The smaller—or more negative—the magnitude, the brighter the object. An object with a magnitude of zero is not an object with no brightness but instead is rather bright.

Publisher

American Association of Physics Teachers (AAPT)

Subject

General Physics and Astronomy,Education

Reference6 articles.

1. I love my baffling, backward, counterintuitive, overly complicated magnitudes;Phys. Teach.,2017

2. “Astronomical Magnitude Systems,” https://lweb.cfa.harvard.edu/∼dfabricant/huchra/ay145/mags.html, accessed Jul. 4, 2022.

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