✦ LIBER ✦

Solar limb brightening and enhancement measurements at 1.2 mm

✍ Scribed by R. A. Newstead

Publisher: Springer
Year: 1969
Tongue: English
Weight: 438 KB
Volume: 6
Category: Article
ISSN: 0038-0938
DOI: 10.1007/bf00146795

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✦ Synopsis

Solar intensity measurements at a mean wavelength of 1.2 mm were made using a 1.6 m Cassegrain telescope. The measurements included a series of scans made during the partial solar eclipse of May 20th, 1966.

A high degree of solar limb brightening is inferred from the measured intensity distribution. The ratio of the disk-averaged brightness temperature to the central brightness temperature at 1.2 mm is calculated to be 1.11 4-0.02.

A fairly intense solar outburst, of approximate duration 50 rain, was observed towards the end of the eclipse.

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