"Astronomy Today" by McMillan and Eric Chaisson is a comprehensive textbook on the subject of Astronomy. This sixth edition, hardcover book is published by Pearson Education and is written in English. It covers a wide range of topics within the subject area of Science, specifically focusing on the fascinating world of Astronomy. Authored by Mcmillan and Eric Chaisson, this textbook offers a detailed exploration of the principles and concepts related to Astronomy, making it a valuable resource for students and educators alike.