Photometric Observations of Subvisual Red Auroral Arcs at Middle Latitudes
Open Access
- 1 January 1959
- journal article
- research article
- Published by CSIRO Publishing in Australian Journal of Physics
- Vol. 12 (2) , 197-198
- https://doi.org/10.1071/ph590197
Abstract
A photometer (Roach et aT. 1958) sensitive to the red oxygen emission at 6300 A has been in operation at Oamden, near Sydney (geomagnetic latitude 42�), since July 1958. In this period three bright aurorae have been seen in southern Australia; on July 8-9, September 4-5, and September 25-26. Following the first two the photometer detected a subvisual stable red arc the next night. On the night after the third aurora, observation was prevented by cloud.Keywords
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