Asteroid Belt. About 2-4 AU (186-370 million miles) away from the Sun, between the orbits of Mars and Jupiter, is a region called the Asteroid Belt. This region is a ring of tens of thousands of relatively small rocky objects called Asteroids. Asteroids can vary greatly in size.
A normal pulse rate for a healthy adult, while resting, can range from 60 to 100 beats per minute, depending on athletic ability. [ Source: http://www.chacha.com/question/what-is-your-pulse-supposed-to-be ].
Your resting heart rate is your heart rate while at rest or sitting still. According to the American Heart Association, the best time to check your resting pulse rate is right before you get out of bed in the morning. The normal rate for an adult male is between 60 and 100 beats per minute. For an endurance athlete, the resting heart rate will typically be lower, indicating a more efficient heart function.