ASTR.SCI.13.E
Describe the use of spectroscopy in obtaining physical data on celestial objects such as temperature, chemical composition, and relative motion.
Astronomy · Texas Essential Knowledge and Skills (TEKS) · TEKS 2022
Standard Unwrapping
AI-generated as a starting point — sign in to edit.Vocabulary
spectroscopyphysical datacelestial objectstemperaturechemical compositionrelative motion
Skills
- describe (the use of spectroscopy) #dok1
- identify (physical data obtainable through spectroscopy) #dok1
- explain (how spectroscopy provides information on temperature, chemical composition, and relative motion of celestial objects) #dok2
- analyze (spectral data to determine physical characteristics of celestial objects) #dok3
- interpret (spectral features to draw conclusions about celestial objects) #dok3
Learning Targets
- I can describe the use of spectroscopy to study celestial objects. #dok1
- I can identify physical data such as temperature, chemical composition, and relative motion from spectral information. #dok1
- I can explain how astronomers use spectroscopy to obtain data about stars and other celestial bodies. #dok2
- I can explain how spectral lines indicate the temperature, elements present, and movement of a star or galaxy. #dok2
- I can analyze a spectrum to determine the temperature of a celestial object. #dok3
- I can interpret spectral lines to assess the chemical composition and motion (Doppler effect) of stars or galaxies. #dok3
Big Ideas
- Spectroscopy is a fundamental tool in astronomy for obtaining physical data about celestial objects.
- Different features in the spectrum of light from celestial objects reveal key information such as temperature, composition, and movement.
Essential Questions
- What is spectroscopy and how is it used to study celestial objects?
- How do astronomers use spectral lines to determine the composition and temperature of stars?
- What can the spectrum of a star tell us about its motion through the universe?
- Why is spectroscopy an essential method for gathering information about objects in space?
- How do temperature, chemical composition, and relative motion influence the observed spectra of celestial bodies?