Our poster is now available! Doesn’t it look nice?? Thanks to the folk at Creative Victoria for putting it all together. Please download the PDF version and place into your newsletters or post up around the office and classroom!
So what is the poster all about?
The background shows a representation of a star trail. In astrophotography, this is captured by pointing the camera at the South Celestial Pole (to get the stationary point) and opening the shutter for a very long time (hours even). That is a very long exposure, so be sure to have your camera on the lowest ISO, have a full battery and be somewhere VERY dark. The end result is a continuous image of the stars as they trail across the sky due to the Earth’s rotation. The South Celestial Pole is the only fixed point (for us Southern Hemispherians anyway) and all of the stars appear to rotate about this point.
Hopefully the horizon image should be recognisable – The Westgate Bridge. A Melbourne icon that overlooks Scienceworks. My family always get a buzz as we cross the bridge and can look down and see the colourful buildings of Scienceworks below.
The name, AstroLight, consists of a spectrum of pinks and blues to represent just a few colours of the light spectrum, but also the colours seen in nebulae or aurora. Each of these colours will represent the energy and chemical composition of the gases in the nebulae or the transitions of electrons and ions in the atmosphere, a small example of how light can be used to tell us so much about our world and the Universe. But in the image that inspired these colours, seen below, the colours represent the temperature and concentration of dark matter of this galaxy cluster.
See the official Scienceworks What’s On page for further details and ticket sales. Tickets are limited, so get in quick!