Photometry

25 Novembro 2021, 14:00 • Koraljka Muzic

The class consisted of two parts. The fist part: resolving problems related to photometry (zero-point, extinction coefficient versus airmass). Problems 4 and 9. Second part: practical tutorial on aperture photometry with Photutils/Python, using the J-band image of the cluster NGC 2244 and a standard star field. Calculation of the zero-point and comparison of the calibrated photometry to the one obtained from the2MASS catalogue.