Prominence processing comparison 14/08/2018

Having been seriously impressed with this image of the prominence the other day acquired with a Lunt LS152

Sunspot AR2718

http://spaceweathergallery.com/indiv_upload.php?upload_id=147300&PHPSESSID=2m86lk4cf4gr18bhad16c2p4s5

I thought I would have another go at processing my window-sill image. I screwed down the alignment box size (in Registax 6) to 10 pixels and limited the processing to the prominence area. I then added a bit of Lucy-Richardson sharpening in GIMP. I think the extra aperture of the LS152 allows a much faster shutter speed, limiting the blur due to atmospheric wobble. The result is below.

Not as good as the LS152, of course.

There is also the small matter of a factor of 20-30 in the price of the optics of course – – – – Sigh!

Moods of Vesuvius

With so many other planets in the solar system now know to host volcanoes, I wonder if residents on those planets (and on exoplanets with volcanoes) see the range of valcanic moods visible to an observer here on Earth?

Duing our stay in Sorrento, Mount Vesuvius displayed a wode range of moods as seen from our hotel and on our travels around the region.

Andy

Why it was worth sending a rover to Gale Crater on Mars – lesson from the Amalfi Coast in Italy

This photos shows erosion in action on this island – like tje central peak in the martian Gale Crater, layers of rock are visible – the lower ones must have been laid down before the higher ones allowing a rover to sample different geological ages as it climbs the central mountain of the crater.

Andy

Island showing layering in rock similar to central mointain in the martian Gale Crater:

Perseids-ish – Apologies photos now added!

First an apology – for some reason the system wouldn’t let me upload any pictures, I thought I just gave up, but it’s published the post anyway!

My weekend went a bit pear-shaped so I ended up trying to get some Perseid images last night. I only saw one, and my very last shot of the night picked up a very faint one heading straight from the radiant near the double cluster, please excuse the awful coma, on 10th.

Persied 2018
Persied 2018

This appears to be an ion trail from a meteor that sneaked through between shorter exposures on the 14th

Having much more luck with the Graves Radar setup, thanks to Peter hill for his inspirational talk which encouraged me to take the plunge!

I ahven’t been as sophisticated in my counting of events – my brain isn’t up to checking several thousand screen gabs, so yes there are multiple counts in there as well missed counts from meteors arriving before the previous one finished, space debris and the ISS on multiple occasions.  My assumption is that all these errors are effectively random and don’t affect the overall profile significantly.

These are my hourly counts, all peaking about 6:00am – UTC/GMT.

This is the average of the above graph, easier to see the overall daily pattern:

And all the data in a row, to show how the peaks rise and fall:

 

All data as a single series
All data as a single series

 

And an example of some detections:

event20180812032157
event20180812032157