Astronomy Basics
Astronomy Basics introduces the fundamental principles governing the study of celestial objects and phenomena beyond Earth's atmosphere. This field explores the vast expanse of the universe, encompassing topics such as the motions of planets, stars, galaxies, and cosmic phenomena like black holes and supernovae. Through observations, theories, and technological advancements, astronomers seek to unravel the mysteries of the cosmos and understand its origins, evolution, and composition. Astronomy Basics serves as a gateway to comprehending the awe-inspiring beauty and complexity of the universe, offering a foundational understanding for those embarking on a journey to explore the wonders of space.
Questions
- How are exponents used in astronomy?
- Why are astronomical units used?
- How are parsecs related to light years?
- How many AU are there in 1.00 light year?
- What are some of the biggest current breakthroughs in cosmology?
- Is an astronomical unit is larger than a light-year?
- A stellar object is emitting radiation at 1670 nm. If the detector is capturing 9 * 10^7 photons per second at this wavelength, what is the total energy of the photons detected in one hour?
- How do we know other galaxies exist?
- When NASA releases images of objects that are light years away, are we viewing the image in real time?
- What type of galaxy has stars that are arranged in a disk with arms that surround a central bulge?
- If gravity clumps matter together into galaxies, why are there separate galaxies? Wouldn't all matter in the universe be in one clump?
- How is astronomy related to biology?
- What is the difference between a galaxy and a nebula? How do astronomers tell them apart?
- If the distance to the nearest star is 4.2 light-years, how far away is it in AU?
- What is the nearest star to earth called?
- When at closest approach to Earth, Planet X is observed to be 3.8 arcseconds in diameter. What is Planet X's diameter in meters?
- What are shockwaves in astronomy?
- What is the edge of space?
- What does declination mean?
- If you are in the southern hemisphere where would you see Polaris?