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Cepheids / Variable stars
Cosmic Distance Ladder: Cepheid Variables
An introduction to the class of variable stars known as Cepheid variables and their use as standard candles for measuring cosmic distances. Covers Henrietta Leavitt's discovery of the relationship be...
Henrietta Leavitt
the Cepheids
Henrietta Leavitt discovered the relation between the period and luminosity of cepheid variable stars. By using Henrietta's discovery, astronomers can estimate the distances to these stars and thus to...
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- ASTR 100 Syllabus
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- ASTR Week 1 Lectures - Dark Matter, Dark Energy
- ASTR Week 2 Lectures Scientific Notation
- ASTR Week 3 Lectures Astronomic Scales, History (1)
- ASTR Week 4 Lectures Brahe, Kepler, Newton, Gravity
- ASTR Week 5 Lectures Special Relativity
- ASTR Week 6 Lectures General Relativity
- ASTR Week 7 Lectures Star Formation
- ASTR Week 8 Lectures Cepheid Variable Stars
- ASTR Week 9 Lectures Low Mass Star Death
- ASTR Week 10 Lectures High Mass Star Death
- ASTR Week 11 Lectures Neutron Stars, Pulsars, Black Holes
- ASTR Week 12 Lectures Distance-Luminosity Modulus
- ASTR Week 13 Lectures, Waves, Hubble Law
- ASTR Week 14 Lectures Relativistic Red Shift
- ASTR Week 15 Lectures, Big Bang
- ASTR Week 16 Lectures Finals Week
- Galileo's Sketches
- ASTR Planetary Nebulae
- ASTR Neutron Stars and Pulsars
- How Large Is the Universe?
- The Elegant Universe - String Theory
- Space Travel Posters
- James Webb Telescope Images
- Home
- PHYS 110 Syllabus
- PHYS 110 Workbook PDF
- PHYS 110 Achieve Student Login
- PHYS Weekly Lectures
- PHYS Week 1 Lectures Scientific Notation
- PHYS Week 2 Lectures Metric System, Terms, Conversions
- PHYS Week 3 Lectures Scale of Universe, the Atom, History
- PHYS Week 4 Lectures Scientific Method, Volume, Mass Density
- PHYS Week 5 Lectures Vectors, Trig
- PHYS Week 6 Vector Analysis
- PHYS Week 7 Vector Analysis, Lab
- PHYS Week 8 Lectures Judgment Day
- PHYS Week 9 Lectures Motion, Acceleration
- PHYS Week 10 Lectures Acceleration Demos
- PHYS Week 11 Lectures Kinematics - Motion in 2 Dimensions
- PHYS Week 12 Lectures Waves, Doppler, Hubble Law
- PHYS Week 13 Lectures, Michelson-Morley, Special Relativity
- PHYS Week 14 Lectures General Relativity, Black Holes
- PHYS Week 15 Lectures General Relativity, E=mc2
- PHYS Week 16 Lectures Finals Week
- ASTR 100 Syllabus
- ASTR 100 Lab Manual PDF
- ASTR 100 Achieve Student Login
- ASTR Weekly Lectures
- ASTR Week 1 Lectures - Dark Matter, Dark Energy
- ASTR Week 2 Lectures Scientific Notation
- ASTR Week 3 Lectures Astronomic Scales, History (1)
- ASTR Week 4 Lectures Brahe, Kepler, Newton, Gravity
- ASTR Week 5 Lectures Special Relativity
- ASTR Week 6 Lectures General Relativity
- ASTR Week 7 Lectures Star Formation
- ASTR Week 8 Lectures Cepheid Variable Stars
- ASTR Week 9 Lectures Low Mass Star Death
- ASTR Week 10 Lectures High Mass Star Death
- ASTR Week 11 Lectures Neutron Stars, Pulsars, Black Holes
- ASTR Week 12 Lectures Distance-Luminosity Modulus
- ASTR Week 13 Lectures, Waves, Hubble Law
- ASTR Week 14 Lectures Relativistic Red Shift
- ASTR Week 15 Lectures, Big Bang
- ASTR Week 16 Lectures Finals Week
- Galileo's Sketches
- ASTR Planetary Nebulae
- ASTR Neutron Stars and Pulsars
- How Large Is the Universe?
- The Elegant Universe - String Theory
- Space Travel Posters
- James Webb Telescope Images
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