Star - Temperature, Spectral Types, Luminosity

Star - Temperature, Spectral Types, Luminosity: Stars differ in colour. Most of the stars in the constellation Orion visible to the naked eye are blue-white, most notably Rigel (Beta Orionis), but Betelgeuse (Alpha Orionis) is a deep red. In the telescope, Albireo (Beta Cygni) is seen as two stars, one blue and the other orange. One quantitative means of measuring stellar colours involves a comparison of the yellow (visual) magnitude of the star with its magnitude measured through a blue filter. Hot, blue stars appear brighter through the blue filter, while the opposite is true for cooler, red stars. In all magnitude scales, one magnitude step

Classifying Stars - The Hertzsprung -Russell Diagram

STARS（Blu-ray Disc付）

Stellar Classification Whitby & District Astronomical Society

Types of Stars: A Guide to Stellar Classification

Spectral Class

Solved] H-R Diagram Use the H-R diagram below to answer questions

Star Types

Classifying Stars - The Hertzsprung -Russell Diagram

Lecture 12: The Classification of Stars

What the Hertzsprung-Russell Diagram Reveals about Stars

Astronomy Lecture Number 6

Spectral classes for stars SPECTRAL CLASS oO B A F G K M SURFACE TEMPERATURE B FGK 30,000 25,000 20,000 15,000

Solved 1) Look at star B. What is its spectral type

Types of Stars Stellar Classification, Lifecycle, and Charts