Consider Two Main Sequence K-Stars

question 60

Multiple Choice

Consider two main sequence K-stars. Each star has been measured for a periodic wobble in its velocity curve. Which star has the closest planet (the planet with the smallest orbit) ?

• A) The planet orbit sizes can't be determined from the information provided.
• B) The star with a period of 1 month
• C) The star with a period of 2 months

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Definitions:

Subducted Plate

A tectonic plate that is being forced underneath another plate into the Earth's mantle at a convergent boundary.

Ophiolite

A portion of the Earth's oceanic crust along with the upper mantle beneath it that has been elevated and is now visible above the surface of the sea.

Oceanic Crust

The part of the Earth's crust that underlies the ocean basins, generally thinner and more dense than continental crust, formed at mid-ocean ridges and recycled into the mantle at subduction zones.

Sheeted Dikes

A geological formation consisting of numerous parallel dikes formed when magma intrudes into a crack then solidifies.