Question

Which is not a method used to detect extrasolar planets? a. transit photometry b. radial velocity measurements c. direct imaging d. microscopy

Answer 1

Microscopy is not a method used to detect extrasolar planets.

Methods of detecting exoplanets:

Any planetary body beyond the solar system that typically orbits a star other than the Sun is referred to as an extrasolar planet, often known as an exoplanet. There are 3,779 planetary systems with 3,108 confirmed exoplanets as of 1 July 2022, 826 of which contain multiple planets. The Kepler space telescope was responsible for most of these discoveries.

Exoplanets contain elements that are comparable to those found in our solar system, but their compositions of those elements may vary. Iron or carbon may dominate some planets, whilst water or ice may rule others.

The following methods have at least once proved successful for discovering an extrasolar planet or detecting an already discovered planet:

• Radial velocity
• Transit photometry
• Ellipsoidal variations
• Pulsar timing
• Variable star timing
• Transit timing
• Transit duration variation
• Eclipsing binary minima timing
• Gravitational microlensing
• Direct imaging

Learn more about  extrasolar planet here:

brainly.com/question/14018668

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