Abstract
Photoelectric and photographic UBV photometry, to V = 15.50, is carried out for 424 stars in and around NGC 5822. A mean color excess of +0.18, corresponding to a visual absorption of Av = +0.54 was found. The cluster has a pronounced giant branch. The true distance modulus and the distance of the were found to be 9.33 and 735 pc, respectively. The angular diameter is 54', corresponding to a linear diameter of 11.5 pc. An age of 2.76 x 10 years, using the Lindoff method, was obtained.
