Around the second century C.E., the Greek astronomer Claudius Ptolemy ... However, there was no rule for what stars were included in a constellation. All star maps used wavy lines to encompass ...

Its name comes from the Ancient Greek ὀφιοῦχος ... Hemisphere during the winter months. The constellation is home to several notable stars, including Alpha Ophiuchi, also known as ...

Stargazers have used the same constellational groups for so long that many people believe they were “lowered down from heaven ...