Lydia Allen
Astronomy teacher | Verified Expert
I hold a degree in Astronomy from Seton Hill University. My passion lies in unraveling the mysteries of the cosmos, igniting curiosity in students. With a deep understanding of celestial phenomena, I guide learners through the wonders of the universe. Whether it's explaining the intricacies of planetary motion or delving into the secrets of distant galaxies, I foster a love for astronomy in every student. Let's explore the cosmos together and unlock the wonders of the night sky.
Questions
How many kilometers is the universe across?
How does gravity differ from other fundamental forces?
What are differences and similarities between the sun, earth, and moon?
What features of an alien planet would you look for in order to determine if the planet experiences plate tectonics?
What effect does a black hole have on matter?
How does electrical energy differ from electromagnetic energy?
How are the number of days in a year related to astronomy?
What is the difference between astronomy and astrology?
What does the Hubble Space Telescope do?
A person on the earth is looking up at the sun, which is 92,900,000 miles away. The angle spanned by the sun at the person's eye is approximately 0.5 degrees. What is an estimate for the diameter of the sun?
Is a black hole still considered a star?
Is Jupiter the largest planet in the universe?
Who is famous for stating that the Earth revolves around the sun, and not the other way around?
How do you calculate the angular velocity of precession?
Why are black dwarfs not on the hr diagram?
What is the diameter or radius of a supermassive black hole?
You measure the parallax angle for a star to be 0.1 arcseconds. What is the distance to this star?
How old is the oldest star in our galaxy?
What causes a red giant to become so large?
Is the universe expanding faster than the speed of light?