1 au astronomical unit - Study guides, Class notes & Summaries

1 Parsec in Astronomical Units - ️️206 265 AU 2.06x10^5 AU 1 Parsec in km - ️️3.09x10^13km 1 Parsec in Lightyears - ️️3.26ly absorbtion line spectrum - ️️Light from a hot body goes through cooler transparent gas (prism); Viewed as a full spectrum with black lines where certain wavelengths of light were absorbed by the cloud Angular diameter - ️️angle between both ends of an object in relation to observation from another object (sun & moon have similar angular diameters ...

EAPS 105 Exam 1 HW Questions & Answers 2024 What lies in the center of the galaxy? a. a void, like the eye of a hurricane b. the oldest stars in the galaxy c. a supermassive black hole d. the home world of our galactic empire - ANSWER-c. a supermassive black hole Which of the following statements about the solar system are correct? a. It formed 4.6 billion years ago. b. At least one of the giant planets are formed of rock and metal like terrestrial planets. c. The orbits of the ma...

How many years ago was the big bang? Correct Answer-13.8 billion years ago What is the diameter of the Earth? Correct Answer-12,756.3 km(equatorial) What is the distance of Earth to Sun? Correct Answer-149,600,000 km What is 149,600,000 km equal to? Correct Answer-1 astronomical unit (AU) What is the distance of the alpha centauri system? Correct Answer-39,734,220,000,000 km= 4.2 light years What is a light year? Correct Answer-The distance light travels in a year at a velocity of...

ASTRONOMY FINAL EXAM STUDY GUIDE TEST. Create your "cosmic address" by arranging the following objects from small to large - CORRECT ANSWER you, Earth-Moon system, Solar System, solar interstellar neighborhood, Milky Way, Local Group, Local Supercluster, Universe The astronomical unit (AU) is commonly used as a measure of distance in the Solar System. Place the Solar System objects in the appropriate bin according to their average distance from the Sun. - CORRECT ANSWER Less than 1 A...

PHSC 102 Midterm Test with A Grade Solutions Astronomy - Answer-the study of the universe. Universe - Answer-totality of all space, time, matter, and energy Our Sun - Answer-More than 100 times larger than Earth the closest star to earth Radius - 6.96 x 10⁵ km Distance from Earth to Sun: 1 AU (astronomical unit - 1.5 x 10⁸ km - 93 million miles) how large is our solar system? - Answer-100,000 light-years across. Light year - Answer-the distance light travels in one year (63...

How old is the universe? correct answer: 14 billion years old How many kilometers make up a light year? correct answer: 10 trillion kilometers or 10 x 10^12 How many galaxies are present in the Local Group? correct answer: 40 Is there ever a time when we, on the Earth, are not in some type of motion? correct answer: no How far away are the nearest stars, excluding the Sun? correct answer: at least 4 light years away The elements hydrogen and helium were created during the Big...

EAPS 105 Exam 1, Review Questions an and answers, VERIFIED/ How much of the solar system's mass resides in the Sun? 99.86% What is an astronomical unit (AU)? 1 AU = the distance from the Sun to the Earth (150 million km) Mercury distance from Sun 0.39 AU Venus distance from Sun 0.72 AU Mars distance from Sun 1.5 AU Asteroid belt distance from Sun 2-3.5 AU Jupiter distance from Sun 5 AU Saturn distance from Sun 10 AU Uranus distance from Sun 19 AU Neptune distance from Sun ...

Astronomy 101 Practice Test Questions and Correct Answers Solar System Characteristics: orbits, what do inner planets do compared to outer, and what about spin - Answer- Counter Clockwise Orbits, Inner planets move faster, Each planet has individual spin Number of planets and names - Answer- 8: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune Gravity - Answer- Attractive force, holds everything together, requires 2 objects pull on each other Gravity on Earth - Answer- 9.8...

____ introduced the idea of an off-centered Earth - ️️Ptolemy ____ must point at the sun for there to be eclipses - ️️Nodes, where orbits intersect 1 Astronomical unit (AU) is... - ️️the distance between the Earth and the Sun, which we use for distances within our solar system 1 Lightyear (ly) is... - ️️the distance light travels in a year 1 Parsec (pc) is... - ️️the distance to a star whose parallax is 1 second of arc 1604 Bayer - ️️star map - Uranometria - first to...

LUOA Earth Science Module 9 Questions and Answers Graded A+ Newton discovered that the gravity of a planet _________________ as the planet approaches the sun causing the planet to move ____________ around the sun in that part of its orbit. increased, faster Newton discovered that if two planetary objects moved twice as far from each other ______________________. their gravity reduced by 1/4th Explain Kepler's 2nd law of planetary motion, also known as the Law of Areas. Kepler's 2nd law of p...