Astronomical unit - Study guides, Class notes & Summaries

ASTRO 7N - Unit 2Copernicus - correct answer proposed the heliocentric (sun-centered) model of the universe, which replaced the geocentric (earth-centered) model distance between earth and sun - correct answer 1 astronomical unit -1 AU time for earth to orbit sun - correct answer 1 earth year -365 days Kepler's first law - correct answer the planets orbit the sun in elliptical orbits with the sun at one focus -these ellipses tend to be nearly circular for the planets in our solar s...

ASTRO 7N - Unit 2 Question and answers rated A+ 2024 ASTRO 7N - Unit 2 Copernicus - correct answer proposed the heliocentric (sun-centered) model of the universe, which replaced the geocentric (earth-centered) model distance between earth and sun - correct answer 1 astronomical unit -1 AU time for earth to orbit sun - correct answer 1 earth year -365 days Kepler's first law - correct answer the planets orbit the sun in elliptical orbits with the sun at one focus -these ellipses ...

practice post test #2 | Questions and Correct Answers | Latest Update 2024/2025 | 100% PASS Select the correct answer from each drop-down menu. The distance between Earth and Mars is 225 million km. When converted using the conversion factor 1 AU = 1.5 × 108 km, the distance between the planets is [0.2 AU/1.5 AU/2.0 AU]. The astronomical unit (AU) is [shorter than/longer than/the same as] a light-year. - Answer - 1.5 AU SHORTER THAN Drag each tile to the correct location. A scientist...

What is the difference between brightness and luminosity? - Brightness is how it appears to us, distance is a factor. Luminosity is how much total light a star gives off. What is parallax? - Over the course of a year, the star's position in the sky appears to shift back and forth, returning to its original position 1 year later. The amount of this shift— the angle between one extreme in the star's apparent motion and the other— is equal to twice the parallax. You can use parallax to fin...

FIELD OF VIEW correct answers The area visible in an image. Usually given as the diameter of the region. HOW LARGE IS THE FIELD OF VIEW? correct answers 1 mile wide or 1.6 km wide WHAT TYPE OF SYSTEM DO ALL SCIENTISTS USE TO MEASURE SIZES? correct answers The metric system. What is the SI unit of force? correct answers The newton named after Isaac newton What is the SI unit of energy? correct answers Joule (J) How is density expressed in Si units? correct answers Kilograms per cub...

ASTRO 7N - Unit 2Copernicus - correct answer proposed the heliocentric (sun-centered) model of the universe, which replaced the geocentric (earth-centered) model distance between earth and sun - correct answer 1 astronomical unit -1 AU time for earth to orbit sun - correct answer 1 earth year -365 days Kepler's first law - correct answer the planets orbit the sun in elliptical orbits with the sun at one focus -these ellipses tend to be nearly circular for the planets in our solar s...

Put the following into perspective: the size of our solar system; the distance to nearby stars; the size of the Milky Way Galaxy; the size of the observable universe. Rank from largest to smallest. To rank items as equivalent, overlap them. correct answers The observable universe, The Milky Way Galaxy, Distances to nearby stars, and The Solar system Light-year: correct answers The distance that light travels in 1 year, which is about 9.46 trillion kilometers. Astronomical Unit: correct an...

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...

Gizmo Solar System Explorer 2024 - All Answers are Correct Student Exploration: Solar System Explorer Vocabulary: astronomical unit, dwarf planet, eccentricity, ellipse, gas giant, Kepler’s laws, orbit, orbital radius, period, planet, solar system, terrestrial planet

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 ...