Earth Hour 2019 Dark Skies for All IAU100


Saturday 30th March open from 8.00pm

8.00pm The Night Sky РOur Heritage  РPreserving our Night Sky for future generations, what Can You do?

8.30 – 9.30pm Earth HourOut under the Ballarat night sky we will look at some deep sky objects and look at our heritage of the beautiful night sky, including the Night Sky Boorong stories.

$12 Adults

$10 Concession

$5 Students under 18yrs

Family 2 Adults 2 Students $30

Members Free

3rd Rock Cafe open for Refreshments.

Bookings here on Trybooking

The night sky – beautiful, mysterious and “infinite”. The band of the Milky Way made up of numerous twinkling points of light. Over the years the night sky has “disappeared” and its wonders lay hidden behind the glow of light pollution from growing towns and cities.

Ballarat still has good views of the Night Sky. Overseas visitors from Germany, Japan, China, England and elsewhere, are amazed at the amount of stars they can see. As Ballarat grows, good planning is required to keep our night sky dark. By preserving our forests and green corridors, by addressing the growing electricity bill that Councils have and by being inventive in how this can be done with regard to reduced street lighting in environmentally friendly new developments and refurbishment of old suburbs, funds can be diverted into other ares for use by the community.

The Ballarat Observatory has an ongoing light pollution survey to measure how light from different parts of the city contribute to making the wonders of the night sky invisible.

Students are encouraged to participate in the survey and can do so by joining BAS for $25 which will provide the Insurance cover required for their involvement. The next survey will be undertaken on Friday 5th April beginning at the Observatory at 20:00 AEDT.

In the above image, the extent of some of the night lights in this image are also a function of composite imaging. These new images were assembled from data acquired over nine days in April 2012 and 13 days in October 2012. This means

fires and other lighting (such as ships) could have been detected on any one day and integrated into the composite picture, despite being temporary phenomena.

Because different areas burned (Australia) at different times when the satellite passed over, the cumulative result in the composite view gives the appearance of a massive blaze. These fires are temporary features, in contrast to cities which are always there.

Image credit:  NASA, NOAA NGDC, Suomi-NPP, Earth Observatory
Data and Processing: Chris Elvidge and Robert Simmon

This link is also good, view from ISS


Celebrated each year, first year 2014.