If you are an amateur astronomer, and comets, asteroids, meteors, and the zodiacal light are your quarry, then this is the book for you. Comet observers can learn how to make visual estimates of brightness and size, and how to make photographic studies of cometary heads and tails. Asteroid hunters will find a life list of objects and guidelines on how to search for them and then how to photograph or electronically image them. Practical photographic...