Large Magellanic Cloud loop nebulae and their stellar contents

Linear correlations between the diameter log of ring-shaped nebulae and the total number logN of embedded stars for two absolute magnitude levels of –2^m and +2^m for the LMC have been found. This shows that less luminous stars are also contributing towards the illumination of the nebulae. A method for the determination of relative ages of these loop nebulae is described.Based on observations collected at the Boyden Observatory, Bloemfontein, South Africa and the European Southern Observatory, La Silla, Chile.