The South Galactic Pole: results from u by photometry of 572 O-F stars

Abstract
Photometric observations on the uυbyβ system are presented for 572 O–F stars within ∼ 20° of the South Galactic Pole. The interstellar extinction near the pole is found to be zero out to 400 pc from the Sun, in agreement with the H I maps of Burstein & Heiles. Several evolved and Population II objects are identified.

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