The milky way from the grounds of the Arkinglas Estate, Loch Fyne
I had another great time hosting outdoor astronomy and stargazing workshops at this years Scapa festival, held on 3-5th May near the shores of Loch Fyne at the Arkinglas Estate.
It was very busy, especially Friday evening when clear skies brought many folk streaming down into the gardens in anticipation of stargazing close to the shoreline.
As it happened we hit some cloud just as I was about to kick off, prompting a quick jump over to my backup projector and screen. I was then able to deliver a 30 minute talk with Q&A, discussing things like the colour, temperature, distance of stars, the Milky Way, other galaxies, shooting stars and large impactors. As ever the questions were fascinating.
A passing satellite
Just as the talk wrapped up skies cleared and we were stargazing from the estate grounds. Plenty of constellations and bright stars began appearing, and conditions improved further when a second group arrived to join in.
Similar conditions prevailed on the Saturday, when skies once again cleared up after my talk, allowing us to observe with the large case of binoculars I always bring to star parties.
Later on I was able to photograph some lovely shots of the Milky Way from the estate grounds, with the band of our galaxy sitting low and clear on the northern horizon.
Feedback has been great on the guiding so far, and I’m looking forward to getting involved again next year.
Starry skies over the Moray coast
Amidst a very busy schedule last month I managed to head out to Roseisle (along the Moray coast) for some observing and a wild camp. My original mission was to try and catch a geomagnetic storm predicted by the MET office space weather forecasts. As it happened the promised aurora didn’t arrive but I did manage to get some photos of the starry skies that opened up on Saturday night, starting with the International Space Station.
Not the most fantastic ISS shot but I only had about 20 seconds to set up after running down the dunes to capture the pass!. The station is actually travelling from west to east here, towards Sirius (bright star on left)
From there I took a number of pictures hoping to capture some aurora, but instead imaging the crisp starry skies. I’ll let the photos do the talking from here – please read the caption notes.
This image of the Plough (minus Alkaid) was snapped while I was still under the trees, on my approach to the beach. You can clearly see the naked eye double star Mizar-Alcor at the bottom of the image. The main stars in the Plough are roughly 100 lights years away. Our Sun would not be visible naked eye if placed this far away which tells us something about the scale and luminosity of these titan stars.
Looking north towards Burghead where I hoped to capture some aurora. Instead I picked up the rich star fields within the Milky Way near Cassiopeia.
One of many passing satellites.
An interesting shot looking north west. The bright white light is the Portmahomack lighthouse and the orange light pollution on the right is likely from Helmsdale. Perhaps the most interesting feature in this photo is the faint smudge of light in the top left. That’s the Andromeda galaxy – a separate spiral galaxy (larger than our Milky Way) over 2.5 million light years away.
The formation of a young protostar following the collapse of a previously inert dust cloud
We had a great turnout for March’s Urban Astronomy session last week at the Sea Cadet’s Hall in Inverness. The indoor presentation massively benefited from our new giant screen, expertly erected by Robbie (pictured below). Here’s a selection of slides from my presentation on naked eye observing and the life of giant stars.
Robbie putting the final touches to our new giant screen for indoor astronomy presentations and virtual sky guiding
– Naked eye and binocular observing
– Satellites: Iridium Flares and ISS
– Colour, temperature and mass of stars
– The Hertzsprung-Russell diagram
– Protostar formation from dark nebulae
– Main sequence burning and final fate of stars
– White dwarfs, supernovae, neutron stars and black holes.
As ever there were some superb questions during and after the talk. Stay tuned for upcoming events as myself and Caroline roll out the program.
In the simplest terms stars behave like black body radiators with colour linked to their surface temperatures.
The brightest stars in the night sky can be close – like Sirius – or giant stars very far away (eg. Betelgeuse, Rigel, Deneb).
The HR diagram. An elegant and reliable tool for describing the evolution of stars from main sequence burning into their final stages of life
Another video guide – this time centred on the constellation Leo, the guardian of Spring skies in the northern hemisphere. Did you know about the beautiful double star in the Sickle called Algieba? Or the dwarf galaxy visible next to Regulus under the darkest skies?
With special thank to Random Records and artist Kanc Cover for the background music.
Face-on spiral galaxy NGC 6814
I’m looking forward to presenting another astronomy talk for the 2019 Inverness Science Festival. Talk details below:
Astronomer Stephen Mackintosh from Highland Astronomy will take you on a journey through space and time, looking at the massive stellar structures that make up the observable universe – Galaxies.
How did we discover them, how many are there and what do they tell us about the immense scale and dynamics of the universe?
Plus tips and advice on observing galaxies and other faint deep sky objects for yourself.
Time: 7pm – 8pm, 8th May 2019
Venue: Main Lecture Theatre, UHI Campus
Booking links: Eventbrite
Here’s an updated list of events I’ll be hosting with Abriachan Forest, the Merkinch Nature Reserve in Inverness and others. Tickets can be picked up via eventbrite (linked) or email contact. Please follow the links below.
Saturday February 9th – Star Stories Aurora special with special guest Graham Bradshaw of Graham Bradshaw Photography. Almost sold out, only a couple of adult and child tickets left. Eventbrite link here.
Saturday 9th March – Star Stories Dark Sky Observing. 70% of tickets already allocated for this one. Eventbrite link here.
Thursday February 28th – Stargazing and Guide to Deep Sky Observing at the Inverness Sea Cadet Hall and in partnership with the Merkinch Nature Reserve. Event details here.
Thursday 28th March – The Life of Stars at the Inverness Sea Cadet Hall and in partnership with the Merkinch Nature Reserve. Event details to be added.
I’ll also be involved in outreach at some festivals this year. So far I can confirm my attendance at SCAPA Festival at Loch Fyne on the 3rd to 5th May Details on the festival and booking info here.
The International Space Station returns to Scotland’s skies on January 25th. I’ve put together a short informative video on the station linked below. Please also find the first few flyby times. I’ll be posting live prompts on my Highland Astronomy FB page when I can.
List of the first few bright ISS passes:
- Friday 25th Jan at 19.07pm
- Saturday 26th Jan 18.19pm
- Sunday 27th Jan 19.00pm
- Monday 28th Jan 18.09pm