See our telescopes for beginners guide and our mobile app

North Pennines Observatory Cloud Chamber Workshop

North Pennines Observatory Cloud Chamber Workshop

Saturday 3rd November 2018 from 14:00pm to 16:00pm

North Pennines Observatory
The Old School House, Allenheads, NE47 9HR

Witness beautiful trails made by unseen cosmic particles that are constantly passing through us and our world. A cloud chamber gives us a glimpse into the invisible world of particles produced in the radioactive decay of naturally occurring elements and those generated when cosmic rays strike the top of the Earth’s atmosphere.

You will make your own mini-cloud chamber from simple materials and see a larger cloud chamber in action. Using a sealed plastic container, some pure alcohol and dry ice you will create a super-saturated environment where the invisible charged particles ionize the vapour in their path triggering a condensation process in the ‘cloud’. We will then discuss how a cloud chamber works and think about other even more elusive particles such as dark matter that scientists are unable to detect at present.

It is suitable for adults and children 12 and over (under 14s must be accompanied by an adult).

This event is taking place as part of the North Pennines Stargazing Festival 2018.

Please note that this event has already taken place on 03/11/2018


Event organiser

North Pennines Area of Outstanding Natural Beauty

North Pennines Area of Outstanding Natural Beauty is organising this event

Please contact North Pennines Area of Outstanding Natural Beauty directly for more details regarding this event or, if appropriate, contact the event venue.


Event booking

For full details on how to attend this event, including how to book, please see the event's official website.

Visit event website

Event darkness

The Moon has a big impact on the visibility of celestial bodies in the night sky. Try to plan your stargazing when there is no bright Moon at night as this is when the skies will be at their darkest.

The below chart shows if and when the skies will be at their darkest during this event. Moonlight is shown in light yellow and the Sun's twilight in light blue. Midnight on the date shown is shown as a white line with sunset to the left and sunrise the next morning to the right. A black background with stars shows the best times for stargazing.



Stay and gaze nearby

  • Butt House Guest House – Keld

    Keld, Thwaite, DL11 6LJ (27.7 miles away)

    Stay & Gaze

    More info
  • Calvert Kielder

    Kielder, Hexham, NE48 1BS (27.9 miles away)

    Stay & Gaze

    More info
  • The Little Barn – Reeth

    Hurst, Richmond, DL11 7NW (29.1 miles away)

    Stay & Gaze

    More info
  • GlamPods Northumberland

    Troughend West Tofts, Otterburn, NE19 1LA (29.1 miles away)

    Stay & Gaze

    More info
  • The Quiet Site

    Ullswater, Bennett Head, CA11 0LS (29.9 miles away)

    Stay & Gaze

    More info