Exoplanets and Light Pollution Review

A light curve is associated with which method of exoplanet detection?

• Radial velocity

• Transit

• Astrometry

• Gravitational Microlensing

Which of these methods has detected the fewest exoplanets so far?

• Radial Velocity

• Direct Imaging

• Astrometry

• Gravitational Microlensing

Astrometry is looking for the same sort of thing (wobble) as which other method?

• Direct Imaging

• Gravitational Microlensing

• Transit

• Radial Velocity

An exoplanet fails which part of the definition of "planet"?

• Must orbit the Sun

• Must not be a moon of another object

• Must have cleared its orbital neighborhood

• Must be round by its own gravity

Roughly how many exoplanets have we discovered so far?

• 100

• 500

• 2000

• 6000

Which detection method has found most of the exoplanets we know about?

• Radial Velocity

• Transit

• Direct Imaging

• Gravitational Microlensing

Which exoplanet detection method looks for an "eclipse" of the star by its exoplanet?

• Gravitational Microlensing

• Radial Velocity

• Transit

• Direct Imaging

Which detection method requires a telescope to block the star's light?

• Astrometry

• Gravitational Microlensing

• Direct Imaging

• Transit

Most exoplanets are ___________ as/than their star.

• A similar size

• somewhat smaller

• much smaller

• slightly larger

Tags

NGSS.MS-ESS1-3

When did we discover the first exoplanet?

• 1982

• 1992

• 2002

• 2012