REA's Essentials is an insightful series of practical and informative study guides covering nearly 100 subjects.

Our Astronomy study guide is packed with student-friendly topic reviews that explain everything about Astronomy. It's a handy resource when preparing for Astronomy exams or doing homework, and it makes a great textbook companion.

The Essentials of Astronomy is also an invaluable resource for science teachers outlining a course curriculum, writing exams, and developing classroom assignments.

　

REA's Essentials provide quick and easy access to critical information in a variety of different fields, ranging from the most basic to the most advanced. As its name implies, these concise, comprehensive study guides summarize the essentials of the field covered. Essentials are helpful when preparing for exams, doing homework and will remain a lasting reference source for students, teachers, and professionals. Astronomy includes the historical perspective of astronomy, sky basics and the celestial coordinate systems, a model and the origin of the solar system, the sun, the planets, Kepler's Laws of Planetary Motion, planetary satellites, asteroids, eclipses, tides, stars, time, and binoculars and telescopes.