Flag of Goiás organized by Joaquim Bonifácio de Siqueira. As in the national flag (unnoficially), the green represents the forests and the yellow represents the gold. Flag of Goiás The flag of Goiás was created by Joaquim Bonifácio de Siqueira and it symbolizes the state of Goiás. It has a rectangle shape, with four green odd stripes and four even yellow stripes. On the upper left hoist, a blue rectangle with five white stars (representing the Southern Cross, constellation that gave Brazil its primitive names - Vera Cruz and Santa Cruz), four on each side and one smaller in the center. The flag
Crux the Coalsack Nebula. The stars within Crux were known to the Ancient Greeks, where Ptolemy regarded them as part of the constellation Centaurus. They were entirely visible as far north as Britain in the fourth millennium BC. However, the precession of the equinoxes gradually lowered the stars below the European horizon, and they were eventually forgotten by the inhabitants of northern latitudes. By 400 AD, most of the stars in the constellation we now call Crux never rose above the horizon of Athens. The 15th century Venetian navigator Alvise Cadamosto made note of what was probably the Southern Cross on