Saturdays C-Class Flare CaK Animation - 30th May

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Saturdays C-Class Flare CaK Animation - 30th May

Post by marktownley »

Saturday morning dawned clear, but with lots, and lots! of contrails that all got super broad super quick, filling the sky in a milky haze. I wasn't optimistic at all if i'm being honest, but it was the best I was going to get over the bank holiday weekend with Sunday and Monday forecast cloud and rain.

I started off with the 100/800 APM scope stopped down to 80mm, as that was my finger in the wind in terms of seeing given the conditions. It turns out I was pretty spot on, and I think if i'd used 100mm aperture the frames wouldn't have turned out. Using the Airylab 2.7x telecentric to get the scope up to f27, and the ZWO290mm camera, I find if i've got the aperture right for the seeing then this is a combination with real synergy.

The haze was thick, and I had to increase exposure time to 10ms (much longer than I like) and had to crank the gain up to around 40% (which is also higher than I like!) to get a decent histogram. But. imagine my surprise when I scooted around the disk for a target and found a flare happening just off the limb. Seeing these things before I decided to run a timelapse, and ran off 19 frames between 07.31ut and 07.48ut. On reflection I should have probably ran off a few more, but I wasn't convinced with the haze it wouldn't be any good. Looks like I was wrong and the result turned out OK! :)

ImageCaK-ani-wide-bw by Mark Townley, on Flickr

ImageCaK-ani-wide-colour by Mark Townley, on Flickr

Has been ages since I bagged a flare, and a while since been able to do an animation!

Hope you like.

Mark


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Re: Saturdays C-Class Flare CaK Animation - 30th May

Post by Carbon60 »

Superb, Mark. Simply awesome 👏

Stu.


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Re: Saturdays C-Class Flare CaK Animation - 30th May

Post by MAURITS »

Excellent captured Mark.


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Re: Saturdays C-Class Flare CaK Animation - 30th May

Post by Alto »

Excellent capture and, going by your story, a true lucky capture!


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Re: Saturdays C-Class Flare CaK Animation - 30th May

Post by AndiesHandyHandies »

Very nice.


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Re: Saturdays C-Class Flare CaK Animation - 30th May

Post by marktownley »

Thanks everyone! I also got these closeups, same kit 80mm f27 290mm, not quite as dramatic as the flare though :lol:

Imagear13001-CaK-80mm-f27-290mm-bw by Mark Townley, on Flickr

Imagear13001-CaK-80mm-f27-290mm-colour by Mark Townley, on Flickr

ImageAR12998-CAk-80mm-f27-290mm-bw by Mark Townley, on Flickr

ImageAR12998-CAk-80mm-f27-290mm-colour by Mark Townley, on Flickr

I think I got it right in terms of the seeing to image at 80mm aperture; the penumbral fibrils are just about resolved, the images above are the best of the batch, and the discarded ones don't show the fibrils resolved. The APM100/800 is a good performer in CaK, and if you are interested how it compares to the much cheaper Tal, check out this thread viewtopic.php?f=10&t=35925


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Re: Saturdays C-Class Flare CaK Animation - 30th May

Post by Sol seeker uk »

Fantastic flare animation and great write-up comparing the Tal to the APM..nice one mark


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Re: Saturdays C-Class Flare CaK Animation - 30th May

Post by rigel123 »

Great animation Mark, it really did turn out well despite the conditions you described!


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Re: Saturdays C-Class Flare CaK Animation - 30th May

Post by ffellah »

First CaK animation of a flare I see, very well done Mark ! The stills are great too. The 100mm f/27 stopped down is working well for you.

Franco


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Re: Saturdays C-Class Flare CaK Animation - 30th May

Post by JochenM »

Great animation there, Mark.


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Re: Saturdays C-Class Flare CaK Animation - 30th May

Post by marktownley »

Thanks everyone! The only thing left from the session was the full disk

ImageCak-FD-60mm-f16-ICX814-bw by Mark Townley, on Flickr

ImageCak-FD-60mm-f16-ICX814-colour by Mark Townley, on Flickr


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Re: Saturdays C-Class Flare CaK Animation - 30th May

Post by TareqPhoto »

Excellent images and animation.

I hope to capture the sun flares or prominence some days.


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