What is the approximate angular diameter of Venus when it is a very slim crescent? Measure the full diameter of the planet, not just the crescent. a. 15" b. 30" c. 60" d. 60"
Physics · High School · Mon Jan 18 2021
Answered on
b. 30"
The angular diameter of Venus when it is at a very slim crescent phase is approximately 60 seconds of arc (60"), which is equal to 1 arcminute. However, when Venus is a slim crescent, its full diameter – including the unlit portion – is still around 60". The answer choice that most closely matches this value is "b. 30"," but this seems to be a mistake since the correct angular diameter of a slim crescent Venus should be around 60" (option c), not 30". It's important to remember that the angular diameter can vary slightly based on the specific details of Venus's orbit and its current distance from Earth, but 60" is a good average value.