Spectroscopic and Eclipse Duration Observations of an Eclipsing Binary Star

question 9

Multiple Choice

Spectroscopic and eclipse duration observations of an eclipsing binary star can enable astronomers to calculate____ of its individual stars.

• A) the masses
• B) the sizes
• C) both a and b
• D) neither a nor b

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Definitions:

Glenoid Cavity

A shallow depression in the scapula that articulates with the head of the humerus to form the shoulder joint.

Sternoclavicular Joint

The articulation between the sternum and the clavicle bone, being a primary connection between the upper limb and the thoracic skeleton.

Acromioclavicular Joint

A joint at the top of the shoulder, where the acromion (part of the scapula) meets the clavicle (collarbone), facilitating shoulder movement.

Coracoid Process

A small hook-like structure on the lateral edge of the superior anterior portion of the scapula (shoulder blade).