This item talks about the shell of gas around a supernova. The supernova 1987A is being monitored photometrically and spectroscopically from Vainu Bappu Observatory Kavalur.

This item was about supernova, that was photographed from Kavalur observatory before and after the appearance 1987A. The supernova is seen close to the tarantula nebula, the brightest nebulosity in the photographs.

This letter seeking a clear spell of an hour in the Sagittarius region and a spectrum of Upsilon Sagittari.