This lab serves as an introduction to the operation of the Leuschner
30-inch telescope and infrared array detector. We determined ways to
calibrate the telescope and to clean up images taken with the infrared
array. Additionally, we used the data to calculate the magnitudes of
observed stars using the method of relative photometry. The
magnitudes that we found for our stars were 6.7, 4.696

0.016, and 6.905

0.006 for
our stars HD201941, HD196573, and HD203856 respectively. We also found
the conversion factor between photoelectrons per second and star
brightness to be about 1.6753e5

421

.