Observations of the Sun in the Extreme Ultra-violet made from a Stabilized Skylark Rocket

Abstract

THE successful launching of the first two stabilized Skylark rockets from Woomera, South Australia, in August and December 1964 was recently reported together with the results obtained by experiments prepared at Culham Laboratory¹. These flights demonstrated accurate solar pointing and obtained photographic records of the extreme ultra-violet spectrum of the Sun and the distribution of extreme ultra-violet radiation from the solar disk. The third stabilized Skylark rocket was launched on April 9, 1965, at 0100 U.T. and carried two Culham experiments. These were particularly successful, giving new data on the chromospheric and coronal ultra-violet spectrum and new extreme ultra-violet spectroheliograms at shorter wave-lengths. This communication presents the latest results.