Abstract:
On 1989 March 9 a flare was recorded in Ca II K near a complex spot group (NOAA active region No. 5395: 35°N, 42°E) of magnetic class D and strength 3000 gauss (Solar Geophysical Data Pt I No. 537). The telescope was a f/15 15 cm coude refractor by Carl Zesis Jena and the filter a Daystar (3933.7Å) with a passbands of 1.2Å. A CN-line photograph was also taken using a Daystar filter (3883.0Å) with a passbands of 1.5Å.
