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A peculiar sodium ‘flare’ on the sun

✍ Scribed by E. A. Gurtovenko

Book ID
104643847
Publisher
Springer
Year
1967
Tongue
English
Weight
634 KB
Volume
1
Category
Article
ISSN
0038-0938

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✦ Synopsis

A peculiar brightening was observed near the centre of the D2 line of NaI on July 28, 1966, in a position where no activity could be seen in the Ha line but where a new important active region formed during the next rotation of the sun. The brightening, first observed at 06:30 UT, progressively faded and disappeared before 07 : 10 UT. Last summer a double-pass m o n o c h r o m a t o r was attached to the new solar telescope of the M a i n Astronomical Observatory of the U k r a i n i a n Academy of Sciences and photoelectric observations were started. The principal characteristics of the apparatus

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