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Solar Activity 15 Apr


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Short report today, the Sun is fairly quiet - disc blank in white light, and not far off featureless in CaK


1131 UT. PST CaK, prime focus, DMK41

Ha reveals interesting filaments scattered around the north west of the disc


1155 UT. Solarscope 60, x2 barlow, DMK41

and significant prominences on the NE and SE limbs


1148 UT. Solarscope 60, x2 barlow, DMK21


1144 UT. Solarscope 60, x2 barlow, DMK21

Transparency fair (despite volcanic ash cloud!) but with frequent interference from thin drifting low cloud. Seeing bad with moderate rapid & variable but occasionally severe slow boiling. Temperature 12C, wind NE force 3-4.

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