Wednesday, October 23, 2024

Large prominences on the sun

 Sunpots are relatively scarce at the moment, but there are some impressively-large prominences visible.

These images were obtained yesterday (22 Oct) with a Lunt LS50THa double-stacked hydrogen-alpha scope and an ASI178mm camera.

false-color image.  The over-exposed disk is masked off.

The diameter of the sun is 109 times larger than the earth.  This next image gives a good impression of the relative sizes of these prominences compared to the Earth-Moon system:

The two white circles represent the Earth and Moon.

And here is an image of the full disk:





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