Search results
Study with Quizlet and memorize flashcards containing terms like Astronomical Unit (AU), Light Year, Universe and more.
20 cze 2024 · Our solar system is located about 27000 light-years from the center of the galaxy, or about halfway out to the edge of the galaxy. Our solar system orbits about the galactic center in a nearly circular orbit, making one trip around every 230 million years.
Study with Quizlet and memorize flashcards containing terms like Earth is made mostly of metals and rocks. Where did this material come from? A) It was created by chemical reactions in interstellar space. B) It was made by our Sun. C) It was produced in the Big Bang. D) It was produced by nuclear fusion in stars.
Study with Quizlet and memorize flashcards containing terms like The farthest bright galaxies that modern telescopes are capable of seeing are up to A) 1 million light years away. B) 10 million light years away.
A) a spherically shaped collection of stars including our solar system and about a dozen other solar systems, stretching about 4 light-years in diameter. B) a spiral galaxy with a disk about 100,000 light-years in diameter and containing between 100 billion and 1 trillion stars.
A television advertisement claiming that a product is light-years ahead of its time does not make sense because. A. a light-year is an astronomically large unit, so a product could not possibly be so advanced. B. light-years can only be used to talk about light.
Study with Quizlet and memorize flashcards containing terms like Examine the spectra of the four unknown substances shown below. What can you conclude?, How was helium first discovered?, What star is the coolest? and more.
