What Does the Word "Seeing" Mean to an Astronomer Using

question 219

Multiple Choice

What does the word "seeing" mean to an astronomer using a telescope?

• A) twinkling and blurring of the image due to turbulence in Earth's atmosphere
• B) combined effects of aberrations in the components of the telescope, particularly spherical and chromatic aberration
• C) effect of wind on the telescope that causes it to vibrate, thereby blurring the image
• D) haze or thin cloud in the atmosphere that reduces the brightness and sharpness of the telescope image

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Definitions:

Personal Service

A service focusing on personalized care or attention, typically provided directly to an individual.

Lawsuit

A legal case where a party seeks to enforce or defend a legal right through a court process.

Assignment

The transfer of rights, duties, or interests under a contract from one party to another.

Donee Beneficiary

A third party who benefits from a contract wherein the promisor agrees to give a gift or confer a benefit directly to the donee beneficiary.