This book is for amateur astronomers who would like to know the mythology behind the names of astronomical objects in the night sky. It covers the lore and legend behind Ptolemy’s 48 constellations, along with significant asterisms, the planets and their moons, the brightest named asteroids and dwarf planets. The revised second edition includes a host of new moons and dwarf planets discovered since 2011. In addition, it now features a new section on major asteroids and their associated myths. While still primarily focused on Greco-Roman mythology, the book now branches out to cover more recently named objects from other cultures, such as Hawaiian, Rapanui, Tongva and Inuit. To assist practical observers, the book gives the location and description of each constellation, including named stars and deep-sky objects. A host of helpful astronomy tips and techniques, as well as a brief introduction to astrophotography, are included to encourage direct observation and imaging of these mythical objects in the night sky. The significance to the Romans for the names of the planets is explained, as well as how the named moons orbiting the planets (many of them named relatively recently) related to their parent planet's name. Later discoveries such as Uranus, Neptune, Pluto, and their moons have been added in recent times. The Mythology of the Night Sky strikes a unique balance between "backyard astronomy" and mythology. It describes each constellation and its observation and imaging, but unlike most astronomy books it also tells the mythological tales in full. Not only will readers appreciate the importance of the mythological characters, and why they were immortalized in the stars, but they will also see how many times several constellations are part of the same story and that even their location in the night sky was significant to the ancients.