That single moment had a profound effect on me and I couldn't turn my eyes away. I had never seen our galaxy in all it's magnificence like this before. Here was some celestial canvas painted with billions of stars. Somehow over the years we have lost a great treasure and never noticed as it slowly slipped away. Our cities and towns have grown ever outwards encroaching on the countryside with poorly designed street lighting which illuminates the sky as much as it does the ground depriving us of what was once taken for granted.
In that one moment I realised I was looking at something so vast it was impossible to comprehend it all. Billions of stars so far away they merge into a nebulous glow across our skies. We live in a galaxy of at least 100 billion stars each a sun like ours, some smaller, some much larger. A huge spiral of suns and we are positioned some way out towards the rim orbiting an ordinary yellow dwarf star , our Sun.
As we look out towards the centre of our galaxy we are looking into a time machine. The light reaching our eyes from the centre left on it's journey some tens of thousands of years ago travelling towards us at 186,000 miles per second. The centre of our galaxy lies in the summer constellation of Sagittarius and here in Britain we see it low in the south on summer and autumn nights. But what we see is how it looked several tens of thousands of years ago and likewise an inhabitant of a planet orbiting one of those central suns would see earth as it was before recorded history began. You and I do not yet exist to them.
As I came back to reality I had to try and photograph what I had seen. Not an easy thing to do but with modern cameras much simpler than it used to be. I set up my camera on the balcony of our hotel room which had a good view over the lake and surrounding hills. I used two lenses a 10-20 mm wide angle and an 18 - 250 mm telephoto. I tried various exposures from 10 - 30 seconds and the aperture wide open. The iso was set between 3200 and 6400 which is very fast but can be electronically noisy. The focus was set to manual and at infinity (no surprises!). I had to use a remote device to trigger the shutter to avoid any vibration and I took several shots for each final image. These were combined in a great free piece of software called Deep Sky Stacker which smooths out any noise on individual frames and gives a much better and less noisy end result. The images below are from several visits to Lake Vyrnwy and some are taken from the dam and the southern end of the lake.
![]() |
| This wide angle shot was taken on Nefyn Beach, North Wales at iso 6400, 30 sec, F4.5 , 11mm and shows the southern Milky Way from Sagittarius to Cygnus and beyond |
![]() |
| Sirius and Orion rising over the pine forested hills around Lake Vyrnwy |








No comments:
Post a Comment