Podcast
Play an AI-generated podcast conversation about this lesson
Questions and Answers
What is the distance from the Sun to Neptune in light years?
What is the distance from the Sun to Neptune in light years?
- 0.00062 light years
- 30 light years
- 0.000015 light years
- 0.00019 light years (correct)
How is one light-year defined?
How is one light-year defined?
- The distance light travels in one hour
- The distance light travels in one year (correct)
- The distance light travels in one minute
- The distance light travels in one day
What is the distance from Earth to Alpha Centauri in parsecs?
What is the distance from Earth to Alpha Centauri in parsecs?
- 4.2 parsecs
- 3.65 parsecs
- 1.29 parsecs (correct)
- 0.0000048 parsecs
What is the conversion of parsecs to light-years?
What is the conversion of parsecs to light-years?
Signup and view all the answers
Why do astronomers use different units of distance like AU, light-years, and parsecs?
Why do astronomers use different units of distance like AU, light-years, and parsecs?
Signup and view all the answers
What does the term 'aphelion' refer to in relation to the Earth's orbit around the Sun?
What does the term 'aphelion' refer to in relation to the Earth's orbit around the Sun?
Signup and view all the answers
What is the perihelion in astronomical terms for the Earth's orbit?
What is the perihelion in astronomical terms for the Earth's orbit?
Signup and view all the answers
How is an Astronomical Unit (AU) defined in relation to the Earth's orbit?
How is an Astronomical Unit (AU) defined in relation to the Earth's orbit?
Signup and view all the answers
Why are distances within the solar system typically given in terms of AU?
Why are distances within the solar system typically given in terms of AU?
Signup and view all the answers
How can the mean orbital distance of any planet be expressed using perihelion and aphelion values?
How can the mean orbital distance of any planet be expressed using perihelion and aphelion values?
Signup and view all the answers
