The Celestial Sphere from Latitude 30° South

1100 Hours Sidereal Time

The sky from 30°S at 1100 hours sidereal time

This page contains a description of the stars, constellations, and deep-sky objects that can be seen in the sky at around 1100 hours sidereal time. It is assumed that the observer is located at approximately 30° latitude south.

To use the sky map, orient it so that the direction you are facing is at the bottom of the map. Zenith, the point directly overhead in the sky, is located at the centre of the map.

Looking South

The only bright object in the south is Achernar of Eridanus which has mostly set. The rest of the constellations in the south are faint. Only Pavo among the avian constellations remains aloft. Scorpius is now well up above the horizon in the southeast. This is one of the few constellations that actually looks like the creature it represents. The bright star at the heart of the scorpion is Antares. It is distinctly red in hue and makes an interesting contrast to the planet Mars when they are both in the same part of the sky. Libra precedes the scorpion up into the eastern sky.

Just above Pavo is Triangulum Australe and higher yet it is Centaurus. Centaurus contains two of the brightest stars in the night sky and one of them, Rigil Kentaurus, is actually the closest star to the Sun. Crux, the famous 'Southern Cross', is found next to Centaurus.

The great ship 'Argo' with its four component constellations has sailed past zenith but it is still high overhead. The brightest star in this group is Canopus in Carina. More bright stars can be found low in the west. Sirius, the 'Dog Star' of Canis Major is coming closer to the horizon and Orion is on the verge of disappearing altogether.

Looking North

The northern skies are quiet now that the brilliant summertime constellations have set. The wholly unexceptional Libra is climbing in the east but bright Arcturus in Boötes has just appeared farther north. Above it is Spica, the only bright object in the constellation Virgo.

Hydra slithers through zenith with Crater sitting on its back and Corvus nearby. Below the water snake is proud Leo with its first magnitude star Regulus marking one end of the 'Sickle' asterism that outlines the lion's head. The Gemini brothers Castor and Pollux are soon to set in the northwest. Just above the twins is another zodiacal constellation, Cancer, famous for the open cluster M44. Procyon, the brightest star in Canis Minor, will soon follow Orion below the western horizon.