ASTR 1102 Study Guide - Leap Year, Blueshift, Parsec
Document Summary
It is summer in baton rouge due to: 23 degree tilt of the earth: the leap year was added to the calendar by: By 1582 when pope gregory changed the calendar, it was off by 10 days throughout. This calendar was pushed ahead by 10 days to correct the problem. What do we want to know about a star: What will happen to it when it dies. Hardest thing to determine is the distance to a star, or any other object in the solar system. Chapter 1 review: due to recent technological advancements in the field, telescopes have been developed to detect non-visible light throughout the universe. Using radioactive age-dating techniques, scientists have dated this debris to be 4. 56 billion years old. Arcminutes used to talk about smaller angles, we subdivide the degree into the 60 arcminutes (60") Arcseconds (or seconds of arc) arcminutes are further subdivided into arcseconds (60 )
