13
Kinds
of measurements made with telescopes
•Measure
brightness of objects (photometry)
•Record
images using electronic “CCD” detectors
•Split
it into different wavelengths with “spectrometers”
From our text: Horizons, by Seeds
Next chapter:
Why atoms and molecules emit and absorb
selected wavelengths
What that can tell you about the emitting/absorbing material
Why atoms and molecules emit and absorb
selected wavelengths
What that can tell you about the emitting/absorbing material