We can all relax. I have just confirmed a dark patch in H-a in the correct position on the Learmouth archives for the 16th. It may appear on other archives too had I the time to search. I ought to correct for CET but it is far too "time consuming." Particularly given that these solar observatories a...

Hello again Chris, With the testing that you've done, then perhaps there is a possibility that the region of interested suffered some sort of temperature-change causing the artefact to show-up. Certainly quite unusual and if it requires a name for that type of artefact, I'd name it as a "A Rusted P...

With the greatest respect, the spot remained fixed on the sun. Not in the field of view. I could use the drives to move completely away from the darker region and return to it as fixed point on the sun. In fact I was using the drives as usual to centre "the blob." Which would be impossible with a du...

Thanks. :bow North east. A larger area of more subtle darkening lies to the SW of the main "blob." I wouldn't have seen it without the PST BF. I use this BF to image proms. Because it needs much less gain than the Lunt B1200. Which means much less noise. Both BFs show completely different appearance...

Hi, In the absence of much to look at I patrolled the disk and found this dark patch. Image borrowed from my blog. The original is on the laptop. An extended filament? It was only visible using the PST BF. Nothing obvious there using the Lunt B1200. NOT a dust bunny! ;) 16.09.20 09 copy 3.jpg

Stunning image! Congratulations!

Superb prom images!

Dear Pedro, You have some lovely "toys." :bow Have you considered trying a roll off building for the new solar set-up? You might enjoy improved seeing conditions without having a solar heated wall just below the telescope objectives. I have often wondered how warm your present dome gets. I often see...

Congratulations! :bow The curved building and its landscaped interior, are an absolute delight compared to the usual, highly unimaginative, concrete "detention blocks." Normally seen jutting forlornly from worn and broken asphalt parking areas reserved for frustrated teachers. So much to inspire the...

:bow Thanks Alexandra. :bow Does your new computer have an SSD? Or do you have an external SSD? I'm a complete ignoramus when it comes to modern tech but I believe their speed can be beneficial with high speed cameras. The little Samsung T5s are extremely useful for carrying lots of data from one co...

Superb sharpness! Well done on your timely capture!

My I ask your frame rate?

My first telescope was a 30x30 all brass drawtube thing for Christmas at ~12. It would not show the Moon, nor much else sharply, at 30x! So I removed the erecting lens and used it at low power, upside down on the moon. I mounted it on a Meccano stand with wormwheel slow motions. So I could look up t...

A nicely crisp image. :D I captured the SE disturbance yesterday afternoon in very poor "simmering" seeing. No sign of any dark spots. Just a lot of surface ripples and a small filament. I haven't bothered to post my images due to their very poor quality. Grey skies and rain today. https://1.bp.blog...

Back in the 60s and 70s there was far more telescope making than telescope buying . Here are my entirely home made 5" f/15 BK7/F2 achromat in a drainpipe. The offset Berry style fork was mouted on a scaffolding pole tripod. Telescopes mixed 076c (Small).jpg The image was taken from an old film print...

Congratulations! I really like the silky delicacy of your H-a images.

Thanks again for the kind words.

Unfortunately, I tend to use far too many words where only a few would do:

Thank you Terry, :bow I process continuously as I capture at the telescope. Rarely taking more than a few short minutes from video capture to posting a final image on my blog. Better images may find their way onto the solar forums if I think they are acceptable. Like all imagers I am a martyr to see...

Thank you all for your kind words. :bow It makes sweating for hours in a 90F observatory so worthwhile. :D Isn't it wonderful to have so much of interesting to try and capture? :cool: I am continuing to experiment with processing. No rude words yet so I must be making some progress. ;) These are tod...

We are enjoying a heatwave with lots of sunshine. Seeing generally poor. A few from this morning's efforts: Tantalizing, occasional clarity but too "wobbly." :roll: 16.08.20 08.22 B1200 2x GPC col.jpg 16.08.20 09.37 B1200 2.6x GPC col.jpg 16.08.20 09.47 B1200 2.6x GPC col.jpg 16.08.20 09.58 B1200 2....

Dropping your unprocessed image into iMPPG immediately produces a coarse grain, like sand. Image processing is a minefield and what others see is entirely dependent on the computer monitor and the image hosting service [forum/ blog/etc.] I often think I should produce multiple variations of my own a...

It was a long hot day. Early captures did not match the seeing beyond 18.00.

Thank you to all who responded. :bow It is ironic that only the last image looks "reasonably sharp" [but not very] posted on "Solar Chat!" and viewed on my 28" Samsung HD monitor. Yet it looks hideously over-processed on my high res. 27" AOC observatory monitor fed by my Hi-res laptop. :o Logically,...

Hi Chris, I see the later images more stable which could be explainable as the Air gets colder :? :? :? Thanks Rainer. I would hesitate to suggest anything was cooler after a long, hot, sunny day. Though you were right about the seeing becoming more stable towards the end [at 7pm.] This defies all ...

HI,

I can't match your temperatures, your skills or your seeing conditions but you always encourage me to keep trying.

Thank you, again, for all your kind words.

It maxed at "only" 85F air temperature in the shade. 91F in the dome. Different renditions of the spot throughout the day. Morning and late afternoon. The seeing became awful around mid day. The trees snatched the sun at 19.00. 7.08.20 10.01 b1200 2x gpc col.jpg 7.08.20 11.38 b1200 2.6x gpc col.jpg ...