Many of you will be familiar with the 2-dimensional Mandelbrot set – the most common fractal. However, it was not until recently that a 3-dimensional analogue was created after many years of blood sweat and tears.
This incredible object is the 3-D Mandelbulb and like the Mandelbrot set you can zoom into this structure to discover new and exciting “worlds”.
A macro of a Dandelion seed head using the Canon 5D MkII and Canon 100mm macro lens.
The Green-Winged Orchids are now at their very best in the New Forest, and this particular specimen was photographed in a local garden using the Canon 5D MkII and Canon 100mm macro lens with ring-flash. Manual settings ISO100, f#22, 1/200 second, and ring-flash on +3. Bit breezy today was the main reason for using 1/200 second.
This will be the last one of these for a while – too much of a good thing and all that. This 4-minute crossing was captured at 9:30 p.m. on 25th April 2011 using the Canon 5D and the 15mm fisheye lens. ISO 100, f#8 and “bulb” exposure. Do continue looking up for the ISS however, it will be good (skies permitting) at least up until 5th May 2011.
I had watched the earlier 9:04 p.m. crossing of the ISS and this lasted nearly 5-minutes at almost the same elevation as the 10:39 p.m. crossing. So why was the 9:04 p.m. crossing 5-minutes long and the 10:39 p.m. crossing only 3-minutes long? The accompanying image tells the story. At 10:39 p.m. the Sun has set further, so the ISS is illuminated for less of its course across the sky. As you can see in the image – it barely makes Ursa Major before its lights out – fascinating!
Managed to image the ISS last night, but somehow completely missed Progress 41P – probably due to all the thin high cloud.
Passing almost directly overhead (83 degees) on 22nd April 2011 were the automated Russian cargo vehicle Progress 41P and the International Space Station. Progress 41P first appeared in the West at 9:48 p.m. followed just one minute later by the International Space Station (ISS). Both disappeared from view in the ENE at an elevation of 25 degrees. In this image both tracks are overlaid as they were both in the same orbit. It was a fantastic sight with just a layer of thin high cloud preventing perfection (and preventing me from imaging).
A 2-frame Sky90/M25C one-shot colour camera image of the Veil nebula in Cygnus.
The reducer/corrector on the Sky 90 gives a very flat field, a focal length of 405mm and a reasonably fast f# of 4.5
Today’s EPOD is my Mercury and Jupiter twilight shot taken on 17th April 2011. Thank you Jim for publishing this one 🙂
This is my 29th EPOD to date.