# # Data for Problem 3, Problem Set #3 # # 5 observations each of photon counts observed in 1 minute from # two apertures # 1) Star+Sky # 2) Sky only # # units: counts/minute # # Source: instructor's notebooks, 2.2-micron photometry measured using # a single-channel InSb photometry (D60) at the Mt. Wilson 24-inch # Summer 1980. # Star+Sky Sky ---------------- 1797 1363 1883 1383 1817 1332 1859 1368 1858 1379 ----------------