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The basics of Telescopes and ccd questions and answers verified 2024
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The basics of Telescopes and ccd'sThe light-gathering power of a telescope is: - correct answer ✔directly
proportional to the area of the objective lens.
In order to quantitatively determine the apparent brightness of an unstudied
star, an astronomer needs to: - correct answer ✔also observe a star with a
known apparent brightness.
The main advantage of a telescope over the human eye is: - correct answer
✔that telescope light-gathering power is higher, allowing observations of
fainter objects.
The main advantage of using a telescope with a CCD camera to observe
astronomical objects is: - correct answer ✔the ability to gather light for a
longer period of time, and therefore observe fainter objects
What is photometry? - correct answer ✔Photometry deals with the
measurement of the apparent brightness of an astronomical object as viewed
from Earth.
Which of the following is NOT an advantage of CCD cameras? - correct
answer ✔CCDs are much cheaper than film cameras.
A ____________ is any star with a known ____________. - correct answer
✔standard star; apparent brightness
List the following in order of increasing ability to see fainter objects in a given
amount of time. - correct answer ✔the human eye, the human eye +
telescope, CCD camera + telescope.
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