Lecture 21 Flashcards
Planets and Extrasolar Planets
1
Q
What is an extrasolar planet
A
A planet that is outside of our solar system
2
Q
What is a planet
A
Multiple definitions
IAU limits to planets orbiting around our own Sun
Must have sufficient mass to sustain its rigid body
Must clear an orbit
3
Q
What are some ways Exoplanets are discovered?
A
Radial Velocity
Astrometric measurement
Transit
Direct imaging
Gravitational lensing
4
Q
Missions that have contributed to finding Exoplanets
A
TESS
MOST
Kepler
5
Q
Challenges in finding Extrasolar planets
A
Planets do not produce their own light
Far away
Lost in the glare of the sun
