Nicholas-Louis de Lacaille invented over a dozen constellations to fill gaps in the southern sky map. Instead of looking to classical mythology, he celebrated the instruments of the Enlightenment. Two small faint constellations represent extremes of visual aids â€“ the telescope and the microscope.
Here is a photograph of the southern sky taken by David Malin, showing Telescopium and its neighbors. If you run your mouse over it, it shows the constellation boundaries set by the International Astronomical Union. The 88 constellations fill the sky with no gaps or overlaps. The "stick figures" show the shapes made by the main stars of a few of the constellations.
This representation of the constellation constellation Telescopium shows a newer telescope than the aerial telescope imagined by Lacaille. Though with only two significant stars remaining, it works well. Remember Lacaille's original construct was much bigger.