Explore the fascinating world of variable stars in this comprehensive video series. Delve into different types of variable stars, with a special focus on Cepheid variables and their significance in astronomy. Learn about pulsating variables, Mira variables, and the unique characteristics of Cepheid variables, including their periodicity, temperature variations, and radial velocity. Understand the importance of Cepheid variables in astronomical measurements and discover the concept of the Distance Triad. Gain insights into absolute and apparent magnitudes, and learn how to calculate distances to stars using real-world examples like Rigel and Sirius. Conclude with a comparison of Type 1 and Type 2 Cepheid variables, providing a thorough understanding of these crucial celestial objects and their role in expanding our knowledge of the universe.
Overview
Syllabus
Astronomy - Ch. 24: Variable Stars (1 of 26) Variable Star Types
Astronomy - Ch. 24: Variable Stars (2 of 26) Pulsating Variables
Astronomy - Ch. 24: Variable Stars (3 of 26) Mira Variables
Astronomy - Ch. 24: Variable Stars (4 of 26) Cepheid Variables: Why so Important?
Astronomy - Ch. 24: Variable Stars (5 of 26) Cepheid Variables: Periodicity
Astronomy - Ch. 24: Variable Stars (6 of 26) Cepheid Variables: Temperature Variation
Astronomy - Ch. 24: Variable Stars (7 of 26) Cepheid Variables: Radial Velocity
Astronomy - Ch. 24: Variable Stars (8 of 26) Cepheid Variables: Increasing Diameter
Astronomy - Ch. 24: Variable Stars (9 of 26) Cepheid Variables: Why Do They Vary?
Astronomy - Ch. 24: Variable Stars (10 of 26) The Importance of the Cepheid Variables
Astronomy - Ch. 24: Variable Stars (11 of 26) The Distance Triad
Astronomy - Ch. 24: Variable Stars (12 of 26) What is "Absolute Magnitude"?
Astronomy - Ch. 24: Variable Stars (13 of 26) Apparent vs Absolute Magnitude
Astronomy - Ch. 24: Variable Stars (14 of 26) How Much Brighter is Rigel than the Sun?
Astronomy - Ch. 24: Variable Stars (15 of 26) How to find distance to a star? Case 1 Rigel
Astronomy - Ch. 24: Variable Stars (16 of 26) How to Calculate Distance to a Star? Case 2 Sirius
Astronomy - Ch. 24: Variable Stars (17 of 26) What is the Absolute Magnitude of Rigel? Case 1
Astronomy - Ch. 24: Variable Stars (18 of 26) What is the Absolute Magnitude of Sirius? Case 2
Astronomy - Ch. 24: Variable Stars (19 of 26) Cepheid Variable: Type 1 vs Type 2
Taught by
Michel van Biezen
