The 20-cm astrograph of the Nizamiah and Japal-Rangapur Observatoies in India was used to obtain photographic plates of Comet Halley before and after perihelion during the 1985-1986 apparition. The images are reduced and ...

The evolutionary nature of the young galactic clusters, from both observational as well as theoretical points of view, is briefly discussed. In addition, some of the interesting properties of the individual objects associated ...