Star a Is Exactly the Same Color as Star B

question 14

Essay

Star A is exactly the same color as star B and appears equally bright.Through stellar parallax measurements, we find that star B is twice as far away from us as star A.Determine which star has the larger radius and how much larger it is.

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Definitions:

Mesonephros

One of three excretory organs appearing during embryonic development; forms caudal to the pronephros as the pronephros disappears. It is well developed and is functional for a time before the establishment of the metanephros, which gives rise to the kidney. It undergoes regression as an excretory organ, but its duct system is retained in the male as the efferent ductule and epididymis.

Mandibular Processes

Portions of the mandible or lower jawbone involved in the formation of the chin and sides of the lower jaw.

Mesonephros

An embryonic kidney that serves as an interim kidney while the final kidney (metanephros) is forming in vertebrates.

Neural Tube

Tube formed from the neuroectoderm by the closure of the neural groove; develops into the spinal cord and brain.