Earth-like Planet efforts - Exoplanets Flashcards
1
Q
Define
A
Any planets found outside of the solar system.
2
Q
When did they first discover exoplanets?
A
1992
3
Q
How many have been proven to exist?
A
4104 exoplanets
4
Q
Radiational velocity / Doppler wobble
A
If a star moves towards the Earth at a certain speed but has measurable abnormalities in its travel, it is likely that a planet orbits this star.
5
Q
Gravitational lensing
A
Occurs when a star comes next to another star which results in a change of the stars’ magnetic field
6
Q
Transit method
A
Analyses how much light a star emits, and if the light input seems to decrease, a planet is the reason.
Also calculates the planet’s surface temperature.
7
Q
Which method is the most logical?
A
The transit method
