Chapter 5 Terms

Question 1

Adaptive Optics

Answer 1

Used to compensaye for atmospheric distortions, which gives us a sharper image

Question 2

CCD

Answer 2

Electronic devide that records the intensity of light falling on it

Question 3

Diffraction

Answer 3

Bending of light, which makes it difficult to distinguish fine details in images

Question 4

Dispersion

Answer 4

The spreading of light or other electromagnetic radiation into a spectrum

Question 5

Interferometer

Answer 5

Device consisting of two or more telescopes connected together to work as a single instruments and are used to obtain a high resolving power

Question 6

Light-Gathering Power

Answer 6

Ability of a telescope to collect light

Question 7

Reflector

Answer 7

A telescope that uses a mirror to collect and focus light

Question 8

Refraction

Answer 8

The bending of light when it passes through one substance and enters another

Question 9

Refractor

Answer 9

A telescope that uses a lens to collect and focus light

Question 10

Resolving Power

Answer 10

The ability of a telescope to discern fine detail and the larger the diameter, the greater resolving power

Question 11

Scintillation

Answer 11

Twinkling of stars caused by the atmosphere

Question 12

Seeing

Answer 12

Measure of the steadiness of the atmosphere during astronomical observation