I'm trying to develop my imaging and processing skills to reveal as much detail in the solar prominences as possible. This prom from this afternoon is definitely an improvement, helped by the fact that it was a particluarly large one:
Gosh, every day brings new excitement with the Lunt Hydrogen Alpha scope. Here's an area I filmed on Sunday on the Western Limb:
I then overexposed the area to reveal a detached prominence:
And more exposure:
Here it is in relation to the sunspot group AR2192:
It didn't seem to change over the day, but I kept an eye on it, and suddenly the suspended dense plasma gas started runnning downwards along the magnetic lines to the surface of the sun:
I captured 28 video clips over a 10 minute period, each clip made up of around 100 images captured in 10 second bursts. The next job was to align and stack the best 50 images from each clip and then process and enhance the composite images.
Finally I put the 28 frames together to make a 2 second timelapse film.
It's taken maybe 5 hours in total to do. Is it worth it for a 2 second video? Oh yes:
The huge sunspot group AR 2192 will disappear around the limb of the sun soon, so I was happy to get some shots of it today. And then I had a closer look at what I'd captured and I was REALLY happy. There is some kind of filament/flare ejecting from the side of the right hand spot! I've posted it on the Solar Forum to find out what it is. Watch this space. And by the way, can I point out the excellence of the photo? :-)
Ah what a great day! I've spent it in the observatory with the solar scope. Here's the result of a morning's work, the full disk sun in Hydrogen Alpha. This is a mosaic of 9 frames, each one made up of the best 1-2000 frames of 2-4000 frame video clips. Marvellous! AR 2192 is the large group on the right, and there are 2 large filaments snaking across the sun's surface. When I say 'large' I mean HUGE. The sun is over 800,000 miles across so the larger filament is around 200,000 miles long. That's almost the distance from the Earth to the Moon.
Actually it an old toy. I bought this (for more money than I care to confess) back in May but it's taken this long to get it up and running. The final part in the picture was Dad fixing the power supply at the weekend.
And what does the sun look like through it? Amazing!
This is my first stacked image of prominences on the limb: