In the 1790s,Sir William Herschel Tried to Measure the Sun's

question 23

Multiple Choice

In the 1790s,Sir William Herschel tried to measure the Sun's position in our Galaxy by

• A) counting the density of stars in different directions along the Milky Way.
• B) comparing our Galaxy with photographs of the Andromeda Galaxy.
• C) measuring the locations of globular clusters around the Galaxy.
• D) measuring distances to star clusters and H II regions in the disk of the Galaxy.

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Definitions:

Daily Values

Dietary reference values useful for planning a healthy diet. The Daily Values are taken from the Reference Daily Intakes (RDIs) and the Daily Reference Values.

Kilocalorie Reference Diet

A standard measure used in nutrition to estimate the energy content of foods, often used in the context of daily intake recommendations.

National Environmental Policy Act

A United States environmental law that promotes the enhancement of the environment and established the President's Council on Environmental Quality.

Federal Action

Legal proceedings initiated by or involving a federal government agency or its interests.