Contains:  Solar system body or event
AR3372 sunspot vs. Earth - 2023.07.19, Vroobel

AR3372 sunspot vs. Earth - 2023.07.19

AR3372 sunspot vs. Earth - 2023.07.19, Vroobel

AR3372 sunspot vs. Earth - 2023.07.19

Equipment

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Description

Right half of the AR3372 sunspot through the Hercules Herschel wedge and 1.25" Solar Continuum filter (first time). Unfortunately, there was an original ND3.0 filter inside the wedge, so my ASI 678MC camera was operating with gain 300 and 6ms exposure therefore a kind of grain is visible. Earlier, without the Solar Continuum filter, it was usually gain 0 and around 1ms exposure. Next time I'll try without the ND3.0 filter.

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Histogram

AR3372 sunspot vs. Earth - 2023.07.19, Vroobel

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Solar System