An introduction to astronomical data reduction: How do you do, NGC-6822?

Blue Compact Dwarfs (BCD) are low-metallicity galaxies with high star formation rates (SFR). We will investigate the low metallicity of the BCD's, such as NGC 6822. Using the University of Hawaii's 2.2 meter telescope data acquired with the STACam imager in the R, SII, and Hα filters. There are a total of 16 CCD's, which have inherent overscan regions that must be removed. Additionally, there is excess data in areas, including overscan where no data should be, that must be accounted for and subtracted. Following this, implementing the World Coordinate System (WCS) allowed us to map the image to the true sky using bright stars as reference points to identify extended regions that have existing observations in other bands. DAO Starfinder was also used to identify stars individually with coordinates that can be verified with other catalogs. Ongoing efforts consist of analyzing data from other spectra as well, including using the UH 2.2 meter SNIFS to obtain spectroscopic data.