Tuesday 16 February 2016

Solar day - Cold Lunar night.

Jason 60mm/f15 refractor

Today the Sun came out to play....
I grabbed the Jason refractor and took a solar projection of the  Midday-ish Sol.

Solar projection

Later I cropped the above photograph and processed the image to within an inch of its life!


The active region (AR2497) at the ten o'clock position could easily be seen in the projection.

There was another active region (AR2501) at the three o'clock position, this only showed up after a bit of teasing with Photoshop.

It's time again to buy some solar film and set up my digicam.

With solar film I will be able to photograph sunspots with higher quality, as you see below:

August 2nd 2011

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Later in the evening, the Moon was up high, I couldn't resist setting up both telescopes and grabbing some Lunar images.

Lunar light on a cold February evening.

Schmidt C8 40mm Kellner - Afocal

I wanted to try some Jupiter sketching , but as it was so cold last night, after half an hour of Lunar watching I packed up the telescopes.

It was time to go indoors and sit by a warming fire.

Observing and sketching Jupiter would have to wait for another night.




Clear Skies

Mark......





Tuesday 2 February 2016

Simply the Analogue Sun.

February Sunlight

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Pencil and paper
Simply the Analogue Sun
I capture the day.
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Today's big idea was to take a picture of the Sun with my digicam....NO CHANCE!!! 

The digicam refused to focus, then the battery died. 
After a quick recharge I tried again..... Still no luck!.... The camera again failed to focus...

After a bit of tutting and mumbling I thought stuff it. The "digital" gremlins had won the day......

I grabbed a HB pencil.

Pencil and Conte Crayon

I simply sketched the Sun, nothing complicated, just a quick outline of the features that I could see, namely the Active Region 2489.

The sketch only took a couple of minutes, nothing went out of focus, batteries didn't run out, and there was no tutting and cursing.

It was a lovely "analogue" solar observation.

Sometimes all you need is a pencil and a piece of paper.

Wednesday 27 January 2016

First Light for the "Jason" 60mm/f15.2 refractor.

“I've never owned a telescope, but it's something I'm thinking of looking into.” - George Carlin
 
Since November of last year it has rained almost everyday in Pembrokeshire, the starry skies have been few and far between.

Needless to say I've had a bit of astronomical "cabin fever"!

There has been the odd clear night, plus several small windows of viewing opportunity, but usually only some ten minutes or so, not enough time to set up the Schmidt C8. 

The skies that have been clear returned poor to average seeing.

The Schmidt did not fair well peering through that most murky of Pembrokeshire gloom.

To beat the poor seeing and the slow setup time of the Schmidt telescope, I decided to buy a smaller aperture telescope, with quicker and easier set up time.

I had my mind set on a long focal length 60mm refractor.

60mm/f15.2 Jason refractor

Within a week of searching I had found a lovely 60mm/f15.2 Jason refractor (Thank You Alan). 

Perfect for the temperamental Pembrokeshire skies.

First Light with the Jason went to Jupiter. The North and South Equatorial Belts  were easily spotted.

Jason 60mm/f15.2 refractor x101 (9mm Ortho)

My 9mm orthoscopic (x101) eyepiece showed pleasing detail even though the seeing was at best AIII.

The thermals from the nearby houses were making Jupiter dance and shimmer a bit, but considering the murky sky, the Jovian giant stood up well.
So far a promising result for the tiny refractor.

Sirius was next on the list. Through the Jason it was a beautiful white Airy disk, with a partial Airy pattern.

With the 9mm ortho eyepiece Sirius was ice white. With the 6mm plossl (x151) eyepiece Sirius hinted at a slight white/brown ochre colour. 

The Pleiades fitted completely within the field of view with the 40mm Kellner (x22) eyepiece.  

The moon looked pin sharp with the 9mm (x101) eyepiece.  

Along the terminator of the almost full moon the crater Pythagoras stood out sharply with plenty of inky blackness beyond the limb.


The evening was cold, the clouds were many,  and the near full moon sky had washed out most of the stars below the second magnitude. 

I had to cut the observing session short, for after only fifteen minutes of observing, in came the clouds and they parked themselves over the county for the remainder of the night..... 

Still, that first fifteen minutes has proved the Jason refractor to be a little champion of a telescope.

I now have a small lightweight scope that I can quickly grab and be outside observing in less than a minute.

Come on clouds clear off, I want to see what this tiny refractor is capable of.....


Clear Skies

Mark.

Friday 8 January 2016

Rain, Haiku and Double Stars


60mm/f15 refractor - 2007

So much rain, so much cloud, I thought the blue skies would never return, but they have.

Over the last two months I reckon to have only glimpsed the stars on about three evenings.

The Leonids, Geminids and Quadrantids passed me by without a single meteor spotted!

I'm still waiting to see comet Catalina... oh well.

This deluge of rain has certainly messed up my night time observing, but considering the terrible floods and anguish others have experienced these past weeks, I really have nothing to complain about.

This enforced absence of starlight has allowed me to gather some of my 2015 Moon haiku.

Moonbow in the night
arcs the sky of Aberporth
sound of nearby waves.

Now the blue moon shines
only the sound of the sea
better than a dream.

Yellow moon rising
autumn stars shine in sky
we sit holding hands.

Reading by moonlight
watching the total eclipse
candlelight flickers.

Craters on the moon
spied with my telescope lens
clouds pass by below.

Reading by lunar light
watching the dark shadow crawl
eating up the sun.

Cannot sleep tonight
the full moon shines so brightly
lets go outside.

Being that the sun is once again heading north, hopefully the skies will now improve.

No definite plans for observing this month, though it would be nice to spend time with Orion and his companions before they head too far west.

One thing I will be doing more of this year is hunting out those most accesible of double stars, but not with the Schmidt telescope. I think I will try my luck with a small long focal length refractor.

Back in 1979 my first telescope was a simple 40mm f15 refractor, it revealed some beautiful colour variations in several of the most famous double stars.

Looking at double stars through a long focal length refractor takes some beating.

The amazing illustrations by the french astronomer Lucien Rudaux give an idea of what I saw as a child.



The above illustration is taken from the Larousse Encyclopedia of Astronomy. For a better look at this book click here.

This wonderful book is a must for all lovers of astronomy and astronomical illustrations.


Come on January... give us some clear skies.


Saturday 5 December 2015

Geminids start Tonight..!


http://www.skyandtelescope.com/

Over the next couple of weeks, I will no doubt be out in the garden under the stars tentatively watching the night sky for the annual spectacle that is the Geminid meteor shower.

The Leonid shower last month completely passed me by without one meteor sighted.

If the weather behaves I hope to have more luck with the Geminids.

It may be cold out there, but it's always worth wrapping up warm and heading outside for those possible midnight celestial fireworks.

If you see a Geminid over the next couple of weeks.... remember to make a wish

Clear Skies

Mark

More information about this meteor shower:  http://www.bbc.co.uk/guides/zsr34j6


Monday 16 November 2015

Night Thoughts While Travelling by 杜甫

 
One of my favourite astronomy books, or series of books, has to be Burnham's Celestial Handbook, a three volume collection of reference material on the stars and objects in the night sky. 

What I particularly like is that among all the wonderful astronomical data, the author Robert Burnham Jr also included a large amount of ancient history and folklore of the stars and constellations.

Plus there's a very a good selection of poetry relevant to the subject in question.  

Whilst reading through the pages concerning Sagittarius the Archer, my eye was drawn to a beautiful translation of a poem by the great Chinese poet Du Fu or Tu Fu as I stubbornly refer to him... Though correctly his name would be 杜甫



Night Thoughts While Traveling
 
A light breeze rustles the reeds
Along the river banks. The
Mast of my lonely boat soars
Into the night. Stars blossom
Over the vast desert of
Waters. Moonlight flows on the
Surging river. My poems have
Made me famous but I grow
Old, ill and tired, blown hither
And yon; I am like a gull
Lost between heaven and earth.


Translation by Kenneth Rexroth 

I have to say there are many translations of this great poem, many of them are bloody awful, but thankfully Kenneth Rexroth's version speaks to me. 

On the next clear evening when the sky is full of stars  I will copy this poem to paper, take it outside and recite it out loudly to the stars above.... I invite you to do the same...


Where have all the fireballs gone....? 
It's been pretty poor astronomy wise these last couple of weeks. Lots of cloud and rain and more rain and cloud etc and blah blah..!!   

Even the recent Taurid meteor shower hasn't revealed one solitary blazing fragment.... so far. 

Usually by now, I have seen at least one. Not this year!

Over the last few years, November has consistently hurled several fireballs my way.. 

Out of all the annual meteor showers, the Taurids, as far as I can tell, seem to be the most consistent for producing blazing fireballs...

I hope to see at least one before the end of the month. Come on clouds ... CLEAR OFF!!


Jupiter rising....
Only a couple more weeks and Jupiter will be clearing the "dancing trees" at the end of our garden. 

I call them dancing trees because they always seem to be moving. Just the slightest breeze and they are off...!  Last night Sirius was winking on and off through the ghostly limbs of a swaying ash tree.

Sketches from 2014
Thankfully at the start of December,  Jupiter will have risen above the dancing disco by about 6.00 am, which will give me plenty of time to grab a few Jovian sketches.

Lets hope we get some clear night skies soon... I have some poetry to recite.


Clear poetic skies 

Mark.. 



Late evening Aurora.

Last night the Aurora Borealis was visible throughout a large portion of the UK. Here in Pembrokeshire it did not disappoint, though in my c...