Back to Light and Stellar SpectroscopyLesson 16 of 30
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Light and Stellar SpectroscopyModule 4Infer the Physics of a Star
Module 4 / Lesson 16 of 3045 min
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A Star Is Not a Perfect Blackbody: How Do We Estimate Its Effective Temperature?

How can a calibrated continuum and physical model constrain effective temperature without trusting one apparent peak blindly?

Use Wien's law as a first estimate, then separate stellar temperature from dust, wavelength coverage, and instrument response.

A Sun-like star emits a detailed spectrum while a smooth cyan reference curve shows the nearby ideal blackbody shape.
Vastward scientific visualization. The smooth curve is an ideal reference; the structured spectrum represents the complications carried by real starlight.

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