Monday 30 March 2015

The Grey Seal Colony at Horsey Gap Norfolk UK








Normally grey seals come to Horsey Beach to breed and stay between November and February.  This year is exceptional in that the seals have come in much greater numbers and have stayed at the beach throughout March.


The grey seal is one of the largest marine mammals found in the waters around the United Kingdom and approximately half the world's population are found in Britain.  The Horsey Colony is located at one of the  most accessible mainland sites and is where you may see grey seal pups in family groups.

Toot and I spent a great morning with four of our grandchildren walking through the marram grass and along the beach. We saw literally hundreds of seals swimming in the North Sea and sunbathing in a 5 mete wide strip of sand next to the breaking surf.  We observed them and they observed us.  Interesting and interested mammalian family groups ! 

http://en.wikipedia.org/wiki/Grey_seal

Sunday 22 March 2015

Eclipse the Movie




I really enjoyed the eclipse so I decided to make a movie from the still images I captured on the morning of the 20th of March 2015 from a field just outside Holbeach Lincolnshire UK.


I also discovered that my camera had captured a sunspot. How good is that!


Friday 20 March 2015

Chasing the Eclipse in Lincolnshire


Gedney Church on the Horizon with the eclipse well underway in fog and cloud - composite image

 Toot  checked the weather forecast for Lowestoft last night - heavy cloud to midday!  So it was an early morning call at 4.00am and off to Lincolnshire our potential window on the partial solar eclipse. When we arrived at our chosen viewing site, just around the corner from 'The Chestnut Tearooms' in Holbeach, it was 7.30 am and the weather was not promising. It was very cold, a bit foggy and clouds stretched from horizon to horizon. I set up my tripod and camera with a telephoto lens at f=300mm. protected with a mylar film white light filter.  Ever so slowly the clouds thinned and the fog lifted.  By the time the moon covered 85% of the solar disc the sky was clear other than a little high level haze.

Toot and I had a great time, the photographer from the local paper took our photographs in front of my camera/tripod and afterwards we had a nice breakfast at the tea rooms.

Early days before the clouds parted

Eclipse maximum

Images taken at various times during the eclipse

Thanks Toot for a great day!  We should sleep well tonight!


Tuesday 10 March 2015

Dawn on Ceres




The individual images which make up this fascinating animated picture were taken in February by NASA's space probe DAWN.  It shows the asteroid Ceres in greater detail than has ever been seen before.  The two glowing 'eyes' in the large crater just above the equator are real and not some camera artifact. The burning question is 'what are they'?

The DAWN spacecraft is using its 'Ion Drive' to spiral  into low orbit around Ceres so more detailed images and analysis will soon be available. Whats for sure is Ceres is significantly different from Vesta the last asteroid visited by DAWN. Vesta is a dry lifeless cratered rock whilst a number of indicators hint at the presence of vast quantities of water below the surface of Ceres.

My guess is the 'bright eyes' are created by sunlight reflected from the shiny surface of water ice but who knows, they could be an enigmatic message left by some alien life form who visited our solar system aeons ago?  Wouldn't it be great if it were the latter rather than the former?



Credits:\NASAJPL-Caltech UCLA MPSDLRIDA
 

 Update 26th April 2015

I was interested to see the recent NASA post of a cylindrical map projection of coloured images taken by the Dawn probe in March 2015 and just prior to entering orbit around Ceres. The coloured images indicate changes in surface rock types and mineralogy.  I have taken and processed similar images of our moon to show variations in mineral morphology. You can see the crater with the two bright spots. I wondered whether the increased light reflective nature of the surface in this area is related to the presence of glassy rock?  Micro glassy spheres were found by astronauts when they visited our moon and I have some Obsidian samples, a naturally ocurring volcanic glass. Obsidian forms when felsic lava extruded from a volcano cools rapidly with minimal crystalisation.  Of course glass like materials can also be formed when rocks are melted by the impact of meteors e.g the tektites found on earth in the viscinity of impact craters.

Dawn is now in orbit around Ceres and has commenced detailed scientific investigations on April the 23rd, so my above wild speculations may or may not be found to be correct!

This map-projected view of Ceres was created from images taken by NASA's Dawn spacecraft during its initial approach to the dwarf planet, prior to being captured into orbit in March 2015.
Credits: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA