AAVSO: American Association of Variable Star Observers

Applying Transformations (Abstract)

Volume 48 number 1 (2020)

George Silvis
194 Clipper Road, Bourne, MA 02532-3525; gasilvis@gmail.com

Abstract

(Abstract only) Applying transformation coefficients to your photometric data corrects your magnitudes to the desired standard system (e.g., Johnson-Cousins BVRI). It can also be used to move a near-BVR system like that of a DSLR to the standard BVR. This presentation describes the concepts and reviews how transform coefficients are derived and applied. And most importantly, how they affect your data! It will showcase a new vphot feature to show how easy it is to work the transformation process into your workflow. You will walk out of the meeting ready to transform your observations to generate more accurate magnitudes.