Published online by Cambridge University Press: 13 May 2016
In this paper we report the gradual change of the physical environment of the Bosscha Observatory in Lembang, Indonesia. From photometric observations carried out in 1982 through 1993 we found a slight increase of the aerosol content in the atmosphere. However, light pollution from the expanding city of Bandung (pop. 2 × 106; 10 km away at 600 m altitude below the Observatory) has produced significant light scattering at zenith distances greater than 55° toward the south.