What Is the Difference Between an Optical Double Star and a Visual

question 34

Multiple Choice

What is the difference between an optical double star and a visual binary star?

• A) There is no difference: They are two names for the same thing.
• B) Optical double stars can be seen as separate stars only through a telescope,whereas visual binaries can be seen with the unaided eye (e.g. ,the star Mizar in the Big Dipper's handle).
• C) The stars in an optical double star are actually orbiting each other,whereas a visual binary is an illusion: The stars are at vast distances from each other and are not actually orbiting each other.
• D) An optical double is an illusion: The stars are at vast distances from each other and are not actually orbiting each other,whereas in a visual binary,the stars are actually orbiting each other.

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Definitions:

Sociohistorical Context

The social, cultural, and historical influences that shape behaviors, beliefs, and conditions at a given time or over time.

Superego

In psychoanalytic theory, the part of the personality that represents the internalized ideals and provides standards for judgment.

Ego

In psychoanalytic theory, the part of the personality that mediates between the demands of the id, superego, and reality.

Preconscious

The part of the mind that contains thoughts, feelings, and memories not currently in consciousness but can be easily accessed.