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The Sun on 15 April 2019 with large sun spot 2738 | by mkk707
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The Sun on 15 April 2019 with large sun spot 2738

The sun is still at the minimum of its cycle. Following a period with no sunspots at all, now the large sunspot AR2738 is crossing the visible disc.

 

Shot through a TS Optics 420 mm/70 mm ED apochromatic refractor with a Canon EOS600D DSLR. A D5 white light filter was fixed in front of the telescope. This filters out 99,999% of the incident sunlight. Even the remaining 1/1000 of one percent still produced an image that was so bright, I had to choose an exposure time if 1/1000 seconds at ISO 100.

 

What does that tell us? Never look at the sun through an optical instrument if you value your eyesight, is what that tells us.

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Taken on April 15, 2019