The Sun 8B10.36 Heliophysics Activity
  8B10.75 Beats from Rotating Bell
Stellar Spectra 8B20
Stellar Evolution 8B30
Black Holes 8B40.10 Gravitational Lensing
Stellar Miscellaneous 8B50.30 Sunspot on the OHP
  8B50.35 Measuring Distances in Universe
  8B50.70 Neutron Star Model