Stellar Spectroscopy

Front

What is Stellar Spectroscopy?

Back

The study of the interaction between light and matter, used to analyze the composition, temperature, density, and motion of stars.

Front

What does the color of a star indicate?

Back

The temperature of the star.

Front

What is a spectroscope?

Back

An instrument that collects and analyzes light to identify the elements present in a star or gas.

Front

What is a line emission spectrum?

Back

A spectrum that shows distinct lines corresponding to specific wavelengths of light emitted by an element.

Front

Why are line emission spectra referred to as 'atomic fingerprints'?

Back

Because each element has a unique emission spectrum that can be used to identify it.

Front

What can we learn from comparing a star's spectrum to a gas spectrum?

Back

We can determine the elements present in the star.

Front

What is the significance of Mercury in stellar spectroscopy?

Back

Mercury can be identified in a gas sample through its unique spectral lines.

Front

How does temperature affect the color of a star?

Back

Hotter stars appear blue, while cooler stars appear red.

Front

What role does light refraction play in spectroscopy?

Back

Refraction allows the separation of light into its component colors, enabling analysis of spectra.

Front

What is the relationship between a star's spectrum and its composition?

Back

The spectrum reveals the elements and compounds present in the star.