1. To explore the range of periods of binary star systems, locate on the Web binary star systems with periods of a. less than 1 week, b. between 1 day and 1 week, c. between 1 and 2 years, d. between...


1. To explore the range of periods of binary star systems, locate on the Web binary star systems with periods of a. less than 1 week, b. between 1 day and 1 week, c. between 1 and 2 years, d. between 40 and 50 years; and e. more than 400 years.


2. Locate the stars Betelgeuse and Rigel in Orion. Observe them both by eye and through a small telescope. Are they the same color? To determine their color(s), it helps to compare them to their neighbors.



May 07, 2022
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