Galaxy - Study guides, Revision notes & Summaries

he Andromeda Galaxy is faintly visible to the naked eye in the constellation Andromeda. Suppose instead it were located in the same direction in space as the center of the Milky Way Galaxy (but still at its current distance). How would it appear to the eye in that case? a) It would be much brighter because it would be illuminated by the many stars in the center of our galaxy. b)It would look about the same, but it would be harder to pick out because its cloud-like appearance would ma...

The Andromeda Galaxy is faintly visible to the naked eye in the constellation Andromeda. Suppose instead it were located in the same direction in space as the center of the Milky Way Galaxy (but still at its current distance). How would it appear to the eye in that case? a) It would be much brighter because it would be illuminated by the many stars in the center of our galaxy. b)It would look about the same, but it would be harder to pick out because its cloud-like appearance would m...

Astro 102 Final Sets Questions With 100% Correct Answers | Latest Update What is the main reason that astronomers have devoted many years of effort to determining the rotation curve for the Milky Way galaxy - ANSWER : The rotation curve can be used to help us determine the distribution of the mass in the galaxy How does the diameter of the disk of the Milky Way compare to its thickness? - ANSWER : The diameter is about 100 times greater than its thickness The most common form...

Solutions Manual for The Cosmic Perspective, 10e 10th Edition by Jeffrey O. Bennett, Megan O. Donahue, Nicholas Schneider | Complete Study Guide with all chapters (Chapter 1 - 24) included. A Modern View of the Universe Discovering the Universe for Yourself The Science of Astronomy S1. Celestial Timekeeping and Navigation Making Sense of the Universe: Understanding Motion, Energy, and Gravity Light and Matter: Reading Messages from the Cosmos Telescopes: Portals of Discovery Our Planet...

Astro 7N Exam 2 Questions and Answers | Verified Updated| Latest 2024. 1. A high-luminosity star ... A: is always at a larger distance than a low-luminosity star B: emits more light than a low-luminosity star C: is always redder than a star with a lower luminosity D: is at a lower temperature than a low-luminosity star E: is always at a smaller distance than a low-luminosity star 2. If a red giant appears the same brightness as a red main sequence star, which one is farther away? A:...

Why do disk stars bob up and down as they orbit the galaxy? correct answers because the gravity of other disk stars always pulls them toward the disk Which part of the galaxy has gas with the hottest average temperature? correct answers the halo What is the typical percentage (by mass) of elements other than hydrogen and helium in stars that are forming right now in the vicinity of the Sun? correct answers 2% Where are most of the Milky Way's globular clusters found? correct answers in...

Light year definition correct answers The distance light travels in one year Light year distance correct answers 9.5*10^12 km Astronomical Unit (AU) definition correct answers Average distance from the Earth to the Sun AU distance correct answers 1.5*10^8 km Galaxy correct answers A great cloud of stars, gas, and dust held together by the combined gravity of all its matter Planetary Systems correct answers A set of gravitationally bound non-stellar objects in orbit around a star o...

Astro 7N Exam 2 Questions and Answers | Verified Updated| Latest 2024. 1. A high-luminosity star ... A: is always at a larger distance than a low-luminosity star B: emits more light than a low-luminosity star C: is always redder than a star with a lower luminosity D: is at a lower temperature than a low-luminosity star E: is always at a smaller distance than a low-luminosity star 2. If a red giant appears the same brightness as a red main sequence star, which one is farther away? A:...

SETI Correct Answer-Search for Extraterrestrial Intelligence What does ETI need? Correct Answer-1. A platform 2. Stability 3. Emergence, persistence and gradual evolution 4. Be communicative Water's special properties Correct Answer-Contracts at lower temperatures, high heat capacity, important for chemical reactions How many stars in the Milky Way could be suitable for ETI? Correct Answer-At least a few billion Habitable zone Correct Answer-area around a star that life can exist...

Billy Mitchell Aerospace Questions and Answers Rated A+ Location of space Beyond the influence of earth Micro gravity small or low gravity Cislunar space the space between the earth and the moon interstellar space the distance from one solar system to another interplanetary space the space from the center of the sun to the orbit of Pluto galaxy an enormous collection of starts arranged in a particular shape universe everything that exists galaxy shapes spiral, elliptic...