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Solar Viewing with Coronado PST

The weather is scorching, the residual heat from a  thousand local BBQs are not helping the situation and it feels like my sunglasses have melted on to my head. The sun in shining and I can feel its heat on my head, its radiation giving me a redneck, all from 93 million mils away.

It’s been a long time since I’ve done any astronomy, and even longer since any solar viewing with Coronado PST, but its clearly cloud free and blisteringly hot, a chance to image the sun using my dedicated solar telescope, a Hydrogen alpha Coronado PST. Even though we’re now way past Solar Maximum, the sun cycles every 11 years, there’s still a little activity to view.

Filaments near sunspot

The sunspot that you see on the left of the image shows some quite squirly activity, boiling gas and plasma and a fiery filaments, view of prominences on the edge of the sun, huge ribbons of ionized gas projecting from the sun’s chromosphere.



Solar Prominence

Both of these images were taken using a Coronado PST and an ASI120MC camera. Unfortunately I can’t get a whole disc image as I need to use a Barlow lens to achieve focus.  Also be better to use a mono camera instead of a colour camera like the one I have. A mono camera would be far more efficient because with a color camera on the sun, it only takes in the red channel, in effect using only 1/3rd of the camera. This is not a cheap hobby, or an easy one at times.

Nick Cook

Amateur astronomer, space, history, nerd, extreme dog walker, cat slave, doorstep daytripper, severe tinnitus sufferer. 13.7 billion years in the making - not that much better for it. Knows more about swords than is probably healthy for a man.

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