ABSTRACT
The second brightest star in Sagittarius is Sigma, so that the sequence of Greek letters has been disregarded; Alpha Sagittarii, near the bottom of the picture, is only of the fourth magnitude. Sagittarius has no really distinctive shape. The brightest star is Epsilon, slightly to the right of the centre of the photograph; below it and to the right is the reddish Eta, which has an optical companion of magnitude 7.8. Most of the other globular clusters in Sagittarius appear more or less stellar in the photograph, but inspection with a telescope reveals their true nature: M28, M55, M69. Corona Australis, the Southern Crown is not nearly so conspicuous as its northern namesake, and its brightest stars, Alpha and Beta, are only of magnitude 4.1. The Scorpion’s Sting appears at the right-hand side of the image; note the very prominent pair consisting of Lambda and Upsilon, and also the fine open clusters M7 and M6.
