A study of IUE spectra of eight cool G4-K0 giants shows evidence of interstellar Mg II absorption in all the stars but Delta Dra. Sharp features are detected in the emission wings of four stars, while only strong asymmetries of the emission profiles are noted in three cases. In all the cases studied, the interstellar absorption features fall very

Not Available

IAUC 4222 available at Central Bureau for Astronomical Telegrams. IAUC 4222 available at Central Bureau for Astronomical Telegrams.

Near infrared maps of the planetary nebula IC 418 taken at 5 arc sec spatial resolution are presented. These show an extremely compact source structure at 1.65 microns, and very much broader and more elliptical emission distributions at 2.2 and 3.6 microns. The possibility that the near infrared continuum derives from small grains with low thermal

High-resolution white-light pictures are analyzed to study the differences between the granular size near sunspot penumbrae and in light-bridges presenting granular structure and that of the quiet photosphere. No difference is found between the mean granular diameter in light-bridges and the quiet photosphere. The dispersion found in the results

By early 1986 there will be over 120 large optical telescopes in the world engaged in astronomical research with mirror or lens diameters of one meter (39-inches) and larger. This atlas gives information on these telescopes and shows their observatory sites on continent sized maps. Also shown are observatory locations considered suitable for the