These Christmas star lights have been installed along Crown Street, in the inner city suburb of Surry Hills. The stars are displayed in the Southern Cross or Crux formation, a constellation that is visible from the southern hemisphere. It is used as a national symbol of Australia and also appears on the Australian flag. Since 2011, the City of Sydney has been using faceted, jewel-coloured stars, designed by Boccalatte, across the city growing each year so they now appear on metrolights, flags, banners, posters, light projections and Christmas trees. In past years, these star decorations had also been created in neon.