One of the joys of Caravanning is that you have the opportunity (in moderation) to take on your holiday the things that you enjoy doing at home. After a pretty awful summer in the UK, I ventured off to France with my faithful SVBony 80 F7 refractor, EQ5 mount and my Sol'Ex. Although I managed to do a white light spot count most days (main exceptions were due to travel), I only managed to get the Sol'Ex out once. I have realised that it takes a little time to get the best out of the Sol'Ex and I am still very much a novice.
So, 4 images at Ha and this was the best of the bunch.
I have to admit that I really like this image, one of the best that I have ever produced, sharp and well detailed with a great deal of information on display.. Hydrogen Alpha (Ha) Images highlight activity in the Solar Corona, the local atmosphere above the visible disk of the Sun.
I have annotated the image with Arrows pointing to the most significant Active Regions. As you can see, there is a great deal going on. The darker lines and shapes on the 'surface' of the sun are filaments - loops or curtains of plasma rising above the true surface.. They appear darker because they are cooler than the surface underneath. When these structure rise above the periphery of the sun, they are known as prominences. As an indication of size, the large object to the South West is probably about 1.5x Earth diameter and is certainly not a large prominence.
AR3751, has a bright white area. This is probably a solar flare building. A M2 class Solar flare erupted at 17:53 UTC from this particular AR. M series flares are considered to be of moderate strength. AR3759 also has a hot spot although there was no report of Solar flares on this day or the next from this AR.
The Active Regions are local areas on the surface of the sun and are normally, but not always, associated with Sunspots. The numbers are assigned by the WORLD DATA CENTER FOR SOLAR-TERRESTRIAL PHYSICS, Boulder, Colorado.
For more information on Solar Activity on this day, follow this link to Spaceweatherlive: https://www.spaceweatherlive.com/en/archive/2024/07/20/xray.html
When an image is processed by the JSolex app, a number of additional images are also created, interim images during the processing phase plus other en-product images.
This is a Stonyhurst disk, underlaid with the mono (non-colourised) solar disk.
Note that the program takes into account the date, time and location to calculate the Solar parameters to ensure that the overlay is accurate.
Updated:2024-10-09