Sunday 30 December 2012

Astronomy by Candlelight.. Happy New Year...


I do a have a red safelight in the observatory, but I find no reason to hook it up and use it...

The reason being...... I enjoy candlelight.....

The soft subdued glow of the naked flame imparts a feeling of warmth that no red safety light is able to do.

Also when my hands feel a bit cold, I move them for a while closer to the flame.

Now if I could also run my RA drive on mechanicals, be it a wind up clock, or maybe a falling weight, then that would be my perfect astronomy set up.


Tuesday 11 December 2012

Sir Patrick Moore... you will be missed.


It was with much sadness on Sunday that I learnt of the passing of Sir Patrick Moore, CBE, FRS, FRAS.

Since the winter of 1976 Patrick Moore has been a constant companion on my astronomical journey.

I must have been about nine years old when I was first allowed to stay up late to watch the Sky at Night.

I was hooked from the first episode.

From the opening title music of Sibelius's At the Castle Gate...the simple studio props, the fascinating interviews, and especially the wonderful enthusiasm and eccentricity of Mr Moore, how could I not be hooked.

Often at the end of an episode Patrick would mention that a newsletter/factsheet was available.

To obtain this A4 information sheet,  you simply sent off a stamped addressed envelope to the BBC.

Whenever Patrick mentioned it was newsletter time, I couldn't get to a post box fast enough to send off my SAE.


Back in April of 2005 my wife, our son Jac and I were lucky enough to meet Patrick Moore, at his home in Selsey.

We could not have had a warmer welcome.

He gave me one of his books, which he signed, a gift I will always cherish.

It was a day I will never forget.

RIP Sir Patrick Moore.




For Patrick...

Early this morning Helen and I set out to capture a shot of Mercury, Venus and the crescent Moon.

This is the one of the shots that was taken. It was a beautiful morning, with frost on the ground.


Thursday 29 November 2012

Morning Star Mercury & Co, over Haverfordwest...

Early this morning I grabbed the Nikon D50, plus a small tripod and headed off for an astro adventure.

I decided to walk to the outskirts of our village to afford myself a better view of Mercury..

From our garden I have no chance of seeing Mercury if it's in the East; there are too many trees and especially too many houses barring any possible view...

After setting up the camera I was lucky enough to capture this image of all three planets.....  seconds later some passing clouds snuffed out Mercury's light.

Mercury-Venus-Saturn : 06h:49m 

I then moved to a better location, about 200 yards further along.....

Now I had an uninterrupted view towards the East.

The lights of Haverfordwest were twinkling in the distance.

Mercury was once again free of the clouds, and I witnessed a beautiful celestial display of all three planets.... plus my favourite named star... Zubenelgenubi.

Mercury-Zubenelgenubi-Venus-Saturn: 06h:56m UT

There were loads of clouds to the West, but luckily the East was fairly cloud free, at least in the parts of the sky that mattered to my observations....

Mercury over Haverfordwest  07:05 UT

Happy Mercury hunting....

Clear Skies

Mark

Tuesday 6 November 2012

Jupiter on my mind ~ plus echoes of Mr Herschel.

Afocal method

Last night I tried a bit of afocal photography with my little Hitachi DZHV582E digicam.

I've had this little camera for about 18 months, and in that time I reckon it's been used practically everyday for one thing or another. Mostly it's used to capture my solar pictures and videos.

If you ever see one of these little cameras.. .grab it... it's ideal for afocal photography.

Well worth the intial £40 I paid for it.

Capturing the Jovian Light...

I trained the Tal1 onto Jupiter and placed the 25mm plossl plus x3 Barlow in the focuser.

This gave me a magnification of x96, anymore and the image started to degrade.

I then simply placed the camera over the eyepiece (afocal method) and over exposed the shot to capture the Jovian moons

As many amateurs know, by exposing for the satellites I completely washed out any detail in the actual planet -  as you can see in this picture.

Over Exposed

I then under exposed the next shot to capture the detail in the planet  as shown here.


Under Exposed


After some copy/paste and a bit of further tweaking, I managed to secure this final image.



Now that I've figured out the camera and photoshop settings, I will be able to log many more Jupiter images on this blog.


Musings on the perfect planetary reflector:

Jupiter has always been a difficult planet to view and photograph with my small Tal1 telescope.

But considering the size of the Tal1 main mirror (110mm) I'm not going to complain.

For many years I've wondered about making a small planetary-only reflector.

Much has been written about the merits of a 6 inch f12 spherical mirror reflector.

Many say this type of telescope would be ideal for planetary work.

Plus a spherical mirror would hopefully be easier to produce with these Welsh hands.

Mr Herschel's 6 .2 inch/f13 reflector
I've a mind to try making a 6 inch f12 reflector.


I've read that Sir William Herschel made, and favoured a 6.2 inch f13 reflector.

If it was good enough for Mr Herschel, then it's good enough for me.







Friday 12 October 2012

Mornings, Evenings and Messiers...




Venus and the crescent Moon looked stunning this morning....  


I really enjoy the early mornings of Pembrokeshire's October and November, they seem to have more than their fair share of clear skies. 

I've noticed that over the last six years;  no matter how bad the weather may be the night before,  there's a good chance of being cloud free in the hour just before the dawn.

Often in the months of October and November I have been lulled to sleep courtesy of a howling Atlantic South Westerly storm; only to wake at around 5.00 am to the sight of starlight.

Usually after about a hour the clouds roll in....... and once again the Atlantic bellows....

So for the next two months I will be looking for that early morning window of starlit opportunity...

Fingers crossed.....

This evening's viewing log:

I didn't expect the stars to be out tonight......  I was wrong....  :0)

Straight into the observatory...roll back the roof and time to chase a couple of Messiers.

I've been meaning to catalogue the Messier list, in a series of sketches. 

Tonight I was able to add two to the list....


M71 was first on the list,. it took me a little while to find it as I was distracted by nearby Gamma Delphinus. 

Gamma Delphinus is one of my favourites; a beautiful lemon and lime green double...well worth a look. 

Tonight though, the seeing wasn't up to much, and poor old Gamma Delphinus looked a bit washed out.  

In fact tonight's star views were pretty awful...  though the two globulars I sketched stood out quite well considering....



Two sketches completed, only another 107 to go....  !!!

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...