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Open Dome Event - A Yard Stick for the Solar System - Part 2

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Networking | Public lectures

Our solar system has the Sun at its centre and spans vast distances of millions of kilometers. Find out how the ancient Greeks and more modern astronomers measured the distances to planets and developed models of our solar system.

  • From: Friday 19 September 2014, 8 pm
  • To: Friday 19 September 2014, 10 pm
  • Location: CELS, Nottingham Trent University, Clifton Campus, Clifton Lane, Nottingham, NG11 8NS
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Event details

We learn already in primary school that the Sun is the centre of our Solar System and that our eight planets are millions of kilometres away from the Sun. Why isn't the Earth the centre, since everything seems to orbit us? If the planets are so far away, only modern space crafts would be able to measure these vast distances? But all of this was achieved by the ancient Greeks and later refined and corrected by astronomers such as Copernicus and Cassini.

The event will start at 8 pm with Mr T Ahmed (AstroCom) presenting his talk A Yard Stick for the Solar System - Part 2 where he will build upon his first introduction to the ancient Greeks and their distance measuring. Starting from a geocentric model of the solar system he will then guide us to how Copernicus developed the heliocentric model. It will also include the method used to determine the distances to the planets applied by 17th century astronomers. This talk will be followed by a brief introduction on what is visible in this month's sky.

Booking is required for this event.


The event will start at 8 pm with the talk A Yard Stick for the Solar System - Part 2 in CELS. Refreshments will be offered before hand in the CELS foyer. Afterwards, visitors will get a tour of the NTU observatory and the chance to see interesting objects in the autumn sky with the observatory's telescopes, small telescopes, and binoculars if the weather allows it.

If the weather is not good, a small planetarium session will be offered in the observatory pointing out objects of interest.

Booking information

Booking is required for this event. To reserve your place, simply add this event to your basket by clicking 'Add to Basket' above.

Entrance is free and available to everyone who is interested.

Location details




Nottingham Trent University
Clifton Campus
Clifton Lane
NG11 8NS


Parking is available only for booked visitors in the North Gate car park.

Past event

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