Look on a dark night at the dark areas, rather than the stars and bright areas. May. The view is to the south at about 10 pm at the beginning of May or 8 pm at the end of the month. Details of some of the objects shown are given below the chart. A telescope of 12.5 cm. These rare stars have hot surfaces and appear to eject gas.
Deep photographs show a faint ring nebula surrounding the star.
NGC 4372 is a globular cluster partially obscured by a long lane of dark absorbing matter, similar to the Coalsack. It is a large globular about 16,000 light years distant. NGC 4833 was recorded by Lacaille in 1752 as resembling a small faint comet. It is, however a beautiful well resolved and fairly compact globular cluster, with small outliers scattered over and beyond it in small curved lines. It lies about 17,000 light years away.