Showing posts with label Merrie dancers. Show all posts
Showing posts with label Merrie dancers. Show all posts

Sunday, 13 November 2016

Moon washed aurora

At last a break in the cloud and rain free night with only a Force 3 wind. That's good for Shetland so we headed out  last night knowing that the Aurora forecast was around a KP5







                                                                                                 St Ninian's Tombolo


We arrived at a reasonably dark site, well normally until you take into account a near full moon that was brightening all the landscape. Tomorrow it will be a Super Moon (although looking at the weather for tomorrow it looks like rain so i doubt whether we will see it in Shetland

                                                                           A pillar of light, game on !


While the moon provided good detail in the landscape it was washing out any aurora that might appear in the sky, except i could just make out a pillar of light.



To show how bright it was on the night i was using ISO 500 15 seconds at F/3.2, unlike the last time we went out and I was having to use ISO 3200 together with some light painting




The pillar of colour did expand for a minute or so then faded away. This is typical aurora activity, some bursts of activity are very short while others last hours.

With several dark sites only around 15 mins away we are well placed to get there fast.



Still looking for that mind blowing aurora but i am sure it will come soon, however any aurora nights are worth seeing , hopefully getting some photos as well





Looking south from Bigton is St Ninian's tombolo, this looks good in the day and at night



Just an update, the Night Sky course i am running on 11 April 2017 for Shetland Adult Education is now full and the Intermediate Photography Course which includes a session on Astrophotography starting at the end of February 2017 is also full.

You still have time to buy a canvas for Christmas, see full details at www.amazingshetland.co.uk

Wednesday, 28 September 2016

Aurora captured

While people have been watching the aurora for many thousands of years its only recently that we have been able to capture the aurora on camera



Often without the aid of the camera we could miss a weak aurora, the camera sensor is far more sensitive than our eyes. You have to go back to 1892 to when the first aurora photograph was taken which showed some structure, this was taken by  two Germans,  Otto Beschin & Martin Brendel using a highly sensitive plate and a wet process.




Before this Robert Esther tried back in 1885 when he achieved a blurry aurora photograph with an eight and a half min exposure which blurred out the aurora and was never published. Today with advanced digital DSLR cameras we can take exposures of a few seconds which show some great detail.



Long before cameras came along people felt a strong need to capture the aurora in some way to show others, some would turn to art, others tried to describe it in words but now many people try and capture it digitally.




As i have said before its on most people's bucket list and i have spoken to a number of visitors to Shetland who have come up in winter to catch a glimpse or better still a photograph of the Merrie Dancers as it is call here.




Green is the main colour that we see but on some occasions when there is a big storm other colours are evident such as Red and Purple although the latter is less frequently seen. The Red colour is often seen at about 120 miles up with the Green colour lower at 90 miles high and Blue and Magenta at 60 miles high.



I was glad to be out Monday night as this was the only night to have clear skies all this week, the wind was not too strong either but with a major aurora at KP6 on a couple of nights later in the week I was very disappointed to find that it was total cloud cover, heavy rain and up to gale force 8 so no chance of even seeing the aurora.

The milky way was spectacular as well. with no light pollution from the moon many thousands of stars could be seen



see more photos at www.amazingshetland.co.uk