| Abstract | This atlas of the Small Magellanic Cloud presents information regarding the nature and location of many of the thousands of objects of various kinds so far discovered in that galaxy. The atlas consists of an explanatory booklet and two sets (yellow and blue) of 101 identification charts which show variable stars, star clusters, emission nebulae, bright supergiants, and other interesting objects, such as emission-line stars and identified X-ray sources. On the average, the limiting magnitudes are approximately 17.5 in B and 17.0 in V for the main charts, with somewhat brighter and nonuniform limits for 3X enlargements of the main central body of the Cloud. The V charts indicate NGC and IC star clusters, Kron (1956) clusters, Lindsay (1958) clusters, Westerlund-Glapsey (1971) clusters, Hodge-Wright (1974) clusters, NGC nebulae, Henize (1956) emission nebulae and emission-line stars, and supergiant stars identified by Sanduleak (1968, 1969). Only variable stars are marked on the V charts, including variable stars from Harvard surveys, Harvard variables for which no catalog numbers were ever assigned, the faint variables discovered by Andrews (1965), and the variables discovered by Graham (private comm.), van Genderen (1969), and Wesselink and Shuttleworth (1965). |
