... , astronomy has a long tradition. As stated in the McGraw-Hill Encyclopedia of Science and Technology, modern astronomy uses techniques from many other sciences, including physics, mathematics, chemistry, geology, and biology. The astronomers' point of view, however, is often different from that of scientists in other disciplines, because the ... mass in the form of strong wins emanating from its surface. It rotates around its axis with a projected velocity of 42 km/s. The effective temperature is approximately 12,000. Rigel also displays small irregular light variations and erratic chan...

• Word Count: 5465
• Approx Pages: 22
• Has Bibliography
• Grade Level: High School