Preliminary results obtained with the UV spectrophotometer, onboard ANS.

Some preliminary results obtained with a five-channel UV spectrophotometer aboard the Astronomical Netherlands Satellite are reported which concern hot subluminous stars, planetary nebulae, globular clusters, extinction laws in the Large Magellanic Cloud as well as in the Carina region, and properties of dust particles in the Merope reflection nebula. Data on 12 hot subluminous subdwarfs and white dwarfs are presented; three of these stars are found to have an effective temperature of the order of 100,000 K but visual magnitudes of 10.5, 12.1, and 12.3, respectively. Observations of 17 planetary nebulae and 10 globular clusters are very briefly reviewed, and attempts to determine an extinction law for the Carina region are mentioned. It is noted that the UV albedo and scattering phase factor of dust particles in the Merope nebula will be derived from observations of five positions in the nebula and of its exciting star.