Old School Astronomer - Citizen of Starship Earth - Typewriter Enthusiast - Artist by Day -
Saturday, 16 September 2023
This Universe we all share has such wonder.
Saturday, 2 September 2023
Return of September Sol.
It's been at least ten weeks since my last solar observation photo.
The weather in that time has not been kind for solar observers (at least where I've been located), and the night skies have been much devoid of star light, or in other words crap!
Strange weather indeed, probably the worst summer weather since about 2012, as far as Pembrokeshire astronomy is concerned.
Return of September Sol.
Finally, this morning the Sun was parked in a beautiful blue sky, and I was able to capture old Sol, resplendent with a chain of prominences.
Above is this morning's picture, captured with the trusty old PST.
Thursday, 22 June 2023
Measuring the filaments.
Today's Sol image revealed a beautiful snake like filament.
It got me thinking... How long is that filament?
With the help of the laptop software, I decided to have a go at making a rough guess.
By placing a grid over today's Sol image I was able to "very" roughly figure out the filament length.
As the Sun is around 865,000 miles in diameter, and the grid took sixteen squares to cross the Sun's diameter I figured that each square was roughly 54,000 miles wide.
865,000/16 = 54,062 miles.
The filament in question, down near the 5.00 clock position on the image easily stretched some two squares.
By my "very rough" reckoning today's filament was around 108,000 miles from end to end!
If you ever decided to walk the length of that filament, at a speed of five mile per hour, without stopping, it would take you just under two and a half years to reach the other end!
How long would it take to walk from one end of the Sun to the other end ? How long would it take to walk from the Sun to my back garden?
I think I'll leave these questions for another time.
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After some photoshop tweaking of today's image I found a new way (for me) to display the solar detail.
It needs further work to be of any use, though for now I am pleased with the results.
That snaking filament shows up much better in this new image format.
Wednesday, 21 June 2023
Summer Solstice Sun
HAPPY SUMMER SOLSTICE EVERYONE
Much cloud in evidence today, though a few gaps did occasionally appear.
The final image wasn't that brilliant, though it did allow for a few pictures with hints of plages and filaments.
Below is probably the best of the lot.
The view through the eyepiece was much better than the photographic image, filaments clearly showed better with the naked eye.
Maybe I should try sketching some of those camera shy filament features... I'll have a go soon.
Tuesday, 20 June 2023
No Meteors ~ Hello to HIYA (revisited)
Back in August 2009, whilst camped out on the Preseli Hills, awaiting the main Perseid shower maximum, I had an idea...
Firstly you make a chart, as follows:
For example I will use the letters of my name: MARK.
Look up each letter of your word on the above chart.
M=4, A=1, R=9, K=2
Once you correspond a number to each of your letters.
Throughout the night 4 M
I sigh. 2 K
Any word or combination of words can be used, plus the poem can be split up into any length verse you see fit.
Have a go, see what you think.
Sunday, 18 June 2023
Where are the Noctilucent clouds?
So far this month I haven't spotted a single Noctilucent Cloud.
Looks like ten years ago I was saying the same thing.
Here's one of my old blog posts from "ten" years ago today!
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Tuesday, 18th June 2013
Night time Daylight - NO NLC
Saturn has finally disappeared behind some rather large ash trees at the end of my neighbour's garden..
afocal image: 40mm "Leviathan" refractor. |
Sunday, 11 June 2023
Venus and the Beehive dance.
The Beehive cluster and Venus dance together in a few days time.
Keep a look out towards the west on the evening of the 13th and 14th.
Around about 10:30 - 10:45 BST
Get out the binoculars, deck chair, tea and cake *
It should make for an interesting astro event.
* Tea and cake are optional, but very much appreciated if the weather misbehaves!
Astro maps ~ Stellarium software
Wednesday, 7 June 2023
Pollen ~ Contrails ~ Pembs Sunset
Today's Sol picture wasn't up to much, so I had to be content with poor contrast prominences.
Infact, the past few weeks has consistently returned poor solar images in both naked eye and camera.
There's so much pollen floating around at the moment, I wouldn't be surprised that degrades the seeing.
Though my main bone of contention has to be those jumbo jets travelling their transatlantic flight path. The contrails they leave in their wake often form a veil of cloud that sits over the county for hours at a time !
The past few weeks I have noticed a big increase in the "across the pond" traffic, add that to the last few weeks of poor prominence seeing... I wonder if there's a connection?
Last Night.
Last night I called in to my local astronomy club, The Preseli Astronomy Group. It was great to catch up with old friends and to meet new members.
There was a white light solar telescope setup and I had also brought along my Ha PST.
A brilliant evening, with lots of astronomy talk and a great observing session of old Sol in both white light and Hydrogen alpha.
On the way home Helen and I stopped in a layby and watched the Sun bid us goodnight.
What better way to finish the day, than with a great Pembrokeshire sunset.
Saturday, 13 May 2023
Retro Sol imaging - Ranting about the lights.
Yesterday's solar image, in the style of an old 1970's amateur solar picture.
If you were an amateur astronomer back in the 70's it must have been difficult to capture any images of solar prominences.
I wonder what the amateurs back then would have made of the humble 40mm Ha telescope? it would no doubt have raised a few smiles.
Take that same PST back to William Herschel's time, and it would have had him dancing around the garden! There's never a TARDIS around when you need it.
Ranting about the lights.
The state of the night skies has been much on my mind of late.
Unfortunately much of Pembrokeshire now suffers from the creeping lights disease.
Artificial night lights are cropping up everywhere in this beautiful county, and completely destroying that inky night blackness I remember so well as a kid.
I keep reading reports that Pembrokshire is one of the least light polluted counties in the UK, this is utter nonsense, as anyone can tell you who has lived here long enough.
My night sky observing goes back to 1975, and I can confidently say that in all those years since that time, the damn light pollution has done nothing but steadily grow and paint the night sky with its sickly pallid artificial glow...!
As Arthur C. Clarke says in one of his short stories. "and one by one the stars went out".
Enough moaning about light pollution... for now.
In Memory of
It is with sadness that I report that the man responsible for founding the Campaign for Dark Skies (now renamed The Commission for Dark Skies) recently passed away.
Bob Mizon was a great promoter and champion of all things astronomy.
He was well known throughout the world for his efforts into tackling the light pollution problem.
I met him just the once, though brief, he left a lasting impression of a great communicator and a gentleman.
He will be much missed.
Friday, 10 March 2023
Sol - 10/03/23 - Camille Flammarion
This morning's sol image:
Any excuse to put in a Camille Flammarion quote, he is one of my all time favourite astronomer/poets.
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Friday, 3 March 2023
The Crow Moon and the Appulse.
Beautifully clear skies last night, probably the best viewing for several months.
It was a wonderful backdrop to display the appulse of Venus and Jupiter.
Many astronomical events need no camera or telescope to elicit that sense of cosmic awe, tonight's appulse of the dancing Venus and Jupiter was one of those events.
The frost was much in evidence this morning. The sparrows are really busy out there at the moment collecting what food they can and making a racket.
Plus the starlings have started to forage for worms, it was only a few days ago that we noticed the blackbird picking up the odd worm in the back garden, a sure sign that the Lunar month of the Worm and Crow are well under way.
With the Crow Moon in mind I managed to capture a half decent gibbous Moon last night.
The image was taken afocally with our trusty old S6 phone camera, through my old 60mm Tasco refractor.
With barely 60mm of crown and flint glass to gather the photons, it's amazing what you can see with a simple old "department store" refractor.
There are countless double stars, the Jovian satellites, craters of the Moon, phases of Venus, star clusters, sunspots,and more.
The list is long .... definitely material for a future blog post.
Partial eclipse - Partial blue sky.
This morning's partial solar eclipse was predicted to be a disaster, with a rain, cloud and misery forecast to be spread over much of Pe...

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It had been a beautifully hot day, the Sun was relentless, happy, strong, and chromium yellow in a big blue cloudless sky. Our motorhome ...
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Digging around in a charity shop the other day I found an interesting book titled: The Modern Children's Library of Knowledge Bo...