07/08/2026
Time for another Star Safari
A prominent constellation in our southern skies, and through pretty much all of the hemisphere, is the Southern Cross, also known by its more correct name, Crux.
Along with Orion, it is one of the easier constellations to spot, and though the smallest of the 88 currently accepted constellations, comes with quite a bit of lore and not a little significance!
Visible through the whole year at varying times of the night, if you look in a southerly direction the asterism forming the shape of a cross is visible. Be careful not to mistake it for the False Cross, which sits in the constellations of Carina and Vela, the true cross can always be distinguished by its pointer stars of Alpha and Beta Centauri found in the leg of the constellation Centaurus (now you can spot that one as well!).
4000 years BC, the constellation was visible as far north as Great Britain, however the precession of the equinoxes has seen it drop further south over the horizon since, and it is quite difficult to see once you are north of the equator, as it lies almost on the horizon.
In the southern hemisphere, the constellation is as important for navigation as the Pole/North Star is in the northern hemisphere. As Orion is visible in both hemispheres, knowing which way Orions belt is oriented, and being able to see either the Southern Cross or the Pole Star, you will be able to deduce 3 of the 4 cardinal points, and then work out the 4th one – for us, this would be north, because we could see east and west using Orion, and south using the Southern Cross.
Refer to the images below (best viewed on a large screen like a computer for clarity)
Other stuff…
The Southern Cross appears on the flags of several countries in the southern hemisphere, most notably Australia and New Zealand, but also Samoa, Papua New Guinea, and Brazil (also on the cover of their passport).
The Marshal of The Air, the top-most rank of the Brazilian Airforce, a 5-Star general, has their 5 stars on their epaulettes arranged in the shape of Crux, rather than a straight line as is common for this ranking.
The first uranographers (sky mappers, as opposed to cartographers which are land mappers) to recognise Crux as a separate constellation were Emery Molyneux and Petrus Plancius, with their representations dating as far back as 1592, though it was placed in the wrong position in their sky maps.
In Australian Aboriginal astronomy, the cross and the Coalsack nebula form the head of the Emu In The Sky in certain of their cultures, whilst in the East Indies and Brazil, various indigenous peoples view Crux to form the body of a ray, and more locally, the Tswana people in Botswana view Crux as two giraffes, with Acrux and Mimosa forming the head of a male, and Gacrux and Imai forming the head of a female.