In the milky way galaxy - Study guides, Class notes & Summaries

What are the characteristics of disk stars (yellow) of the Milky Way Galaxy? - High mass stars, the Sun, youngest stars, and stars that all orbit in nearly the same plane What are the characteristics of halo stars (green) of the Milky Way Galaxy? - Globular clusters, oldest stars, stars whose orbits can be inclined at any angle, and stars with smallest abundance of heavy elements. What are the characteristics of spiral galaxies? - They contain abundant clouds of cool gas and dust, are rare...

A lightyear is the distance that _________ can travel in one _____ correct answers light, year How many km in a lightyear? correct answers 9.50 x 10^12 km How many KM in an AU correct answers 1.5 x 10^8 How many AU in a lightyear correct answers 63,000 AU Earth is a planet while the Sun is a________ correct answers Star Solar System correct answers consists of the sun, the planets, and some smaller bodies such as moon, asteroids, and comets - one planetary system Name the plane...

Complete Solutions Manual for Explorations: Introduction to Astronomy 10e 10th edition by Thomas Arny and Stephen Schneider. Full Chapters Solutions are included- Chapter 1 to 18 Preview: The Cosmic Landscape Chapter 1: The Cycles of the Sky Chapter 2: The Rise of Astronomy Essay 1: Backyard Astronomy Chapter 3: Gravity and Motion Chapter 4: Light and Atoms Essay 2: Special and General Relativity Chapter 5: Telescopes Chapter 6: Earth Chapter 7: The Moon and Tides Essay 3: Keeping T...

What is our cosmic address? - correct answer Earth, Solar System, Milky Way Galaxy, Local Group, Laniakea Supercluster How big is the sun in comparison to other stars? - correct answer Medium sized How many stars does the milky way galaxy consist of? - correct answer 100 Billion or 10^11 How many galaxies are in the local group? - correct answer 10-50 How many galaxies are in the Laniakea Supercluster? - correct answer 1000s of galaxies How fast would light travel around earth? - ...

White dwarfs: properties - Remaining cores of dead, low mass stars Electron degeneracy pressure supports them against gravity Slowly fade with time Sirius and its hot WD companion White dwarfs with same mass as Sun are about same size as Earth; slowly cooling Typical density 10^6 gram / cubic cm Higher mass white dwarfs are smaller Cannot be more massive than 1.4MSun, the Chandrasekhar limit WDs in binaries: nova, supernova Type I - Mass falls toward white dwarf from binary companion ...

How many stars are in our galaxy? - correct answer 4 x 10^11 What is our cosmic address? - correct answer Earth Solar System Interstellar Neighborhood Milky Way Lanieakea Observable Universe Infinite Universe What is an astronomical unit? - correct answer The average distance between the Sun and the Earth As a blackbody becomes hotter, it also becomes ______ and ______. - correct answer More luminous, bluer. If an electromagnetic wave's frequency increased, then - correct ...

PHSC 121 Homeworks (1-4) 1st Exam Questions All Correctly Answered Astronomy is the study of ___________________. a. the Solar System b. galaxies c. the entire universe d. the planets of the Solar System - Answer -c. the entire universe Which of the following is not a step in the scientific method? a. evaluate science opinion b. refine hypothesis, develop theory c. evaluate data d. draw new conclusions from experimental data and observations - Answer -a. evaluate science opinio...

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...

Astro 102 Final Exam Ultimate Study Guide | 100% Correct Answers | Verified | Latest 2024 Version What are the characteristics of disk stars (yellow) of the Milky Way Galaxy? - High mass stars, the Sun, youngest stars, and stars that all orbit in nearly the same plane What are the characteristics of halo stars (green) of the Milky Way Galaxy? - Globular clusters, oldest stars, stars whose orbits can be inclined at any angle, and stars with smallest abundance of heavy elements. Wh...

PHSC 102 Final pt. 2 Questions with Correct Answers What perception of the Milky Way Galaxy did astronomers have in 1900? - Answer-They believed that the Milky Way was the entire universe Globular clusters are mainly found - Answer-in the Galactic halo The period-luminosity relation was discovered in 1908 by - Answer-Henrietta Leavitt Match the property with structures of the galaxy. - Answer-Galactic bulge - contains the super massive black hole in the center Galactic disk - has s...